java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1de736e-m [2019-02-14 16:18:53,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-14 16:18:53,904 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-14 16:18:53,916 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-14 16:18:53,916 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-14 16:18:53,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-14 16:18:53,919 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-14 16:18:53,920 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-14 16:18:53,922 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-14 16:18:53,923 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-14 16:18:53,924 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-02-14 16:18:53,951 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-02-14 16:18:53,965 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-14 16:18:53,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-14 16:18:53,966 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-14 16:18:53,966 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-14 16:18:53,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-14 16:18:53,966 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-14 16:18:53,967 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-14 16:18:53,967 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-14 16:18:53,967 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-14 16:18:53,967 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-14 16:18:53,968 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-14 16:18:53,968 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-02-14 16:18:53,968 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-14 16:18:53,968 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-14 16:18:53,969 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-14 16:18:53,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-14 16:18:53,969 INFO L133 SettingsManager]: * Use SBE=true [2019-02-14 16:18:53,970 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-14 16:18:53,970 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-14 16:18:53,970 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-14 16:18:53,970 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-14 16:18:53,970 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-14 16:18:53,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-14 16:18:53,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-14 16:18:53,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-14 16:18:53,971 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-14 16:18:53,971 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-14 16:18:53,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-14 16:18:53,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-14 16:18:53,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-14 16:18:53,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-14 16:18:53,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-14 16:18:53,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-14 16:18:53,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-14 16:18:53,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-14 16:18:53,973 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-14 16:18:53,974 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-14 16:18:53,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-14 16:18:53,974 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-14 16:18:53,974 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-14 16:18:54,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-14 16:18:54,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-14 16:18:54,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-14 16:18:54,023 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-14 16:18:54,024 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-14 16:18:54,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl [2019-02-14 16:18:54,025 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl' [2019-02-14 16:18:54,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-14 16:18:54,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-14 16:18:54,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-14 16:18:54,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-14 16:18:54,066 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-14 16:18:54,084 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 04:18:54" (1/1) ... [2019-02-14 16:18:54,095 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 04:18:54" (1/1) ... [2019-02-14 16:18:54,100 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-14 16:18:54,101 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-14 16:18:54,101 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-14 16:18:54,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-14 16:18:54,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-14 16:18:54,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-14 16:18:54,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-14 16:18:54,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/1) ... [2019-02-14 16:18:54,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-14 16:18:54,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-14 16:18:54,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-14 16:18:54,127 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-14 16:18:54,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (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 16:18:54,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-14 16:18:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-14 16:18:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-14 16:18:54,550 INFO L278 CfgBuilder]: Using library mode [2019-02-14 16:18:54,550 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-02-14 16:18:54,551 INFO L202 PluginConnector]: Adding new model divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 04:18:54 BoogieIcfgContainer [2019-02-14 16:18:54,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-14 16:18:54,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-14 16:18:54,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-14 16:18:54,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-14 16:18:54,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:18:54" (1/2) ... [2019-02-14 16:18:54,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b4f1e0 and model type divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 04:18:54, skipping insertion in model container [2019-02-14 16:18:54,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 04:18:54" (2/2) ... [2019-02-14 16:18:54,564 INFO L112 eAbstractionObserver]: Analyzing ICFG divisibilityWithArray.bpl [2019-02-14 16:18:54,577 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-14 16:18:54,585 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-14 16:18:54,605 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-14 16:18:54,636 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-14 16:18:54,636 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-14 16:18:54,636 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-14 16:18:54,636 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-14 16:18:54,637 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-14 16:18:54,637 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-14 16:18:54,637 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-14 16:18:54,637 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-14 16:18:54,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-02-14 16:18:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-14 16:18:54,660 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:18:54,661 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-14 16:18:54,663 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:18:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:18:54,670 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-02-14 16:18:54,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:18:54,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:54,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:18:54,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:54,712 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:18:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:55,303 WARN L181 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2019-02-14 16:18:55,526 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2019-02-14 16:18:55,535 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 16:18:55,551 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 16:18:55,566 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 16:18:55,568 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 16:18:55,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-14 16:18:55,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-02-14 16:18:55,571 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-14 16:18:55,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-14 16:18:55,579 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:18:55,582 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-02-14 16:18:55,627 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 16:18:55,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-14 16:18:55,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-14 16:18:55,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-14 16:18:55,641 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-02-14 16:18:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:55,982 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-14 16:18:55,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-14 16:18:55,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-14 16:18:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:18:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-14 16:18:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-14 16:18:55,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-14 16:18:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-14 16:18:55,993 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2019-02-14 16:18:56,037 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 16:18:56,045 INFO L225 Difference]: With dead ends: 14 [2019-02-14 16:18:56,046 INFO L226 Difference]: Without dead ends: 7 [2019-02-14 16:18:56,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-14 16:18:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-02-14 16:18:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-02-14 16:18:56,170 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:18:56,171 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 6 states. [2019-02-14 16:18:56,172 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 6 states. [2019-02-14 16:18:56,172 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 6 states. [2019-02-14 16:18:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:56,175 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-14 16:18:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-14 16:18:56,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:18:56,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:18:56,178 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states. [2019-02-14 16:18:56,178 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states. [2019-02-14 16:18:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:56,182 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-14 16:18:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-14 16:18:56,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:18:56,183 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:18:56,183 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:18:56,183 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:18:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-02-14 16:18:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-02-14 16:18:56,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2019-02-14 16:18:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:18:56,192 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-02-14 16:18:56,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-14 16:18:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-02-14 16:18:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-02-14 16:18:56,193 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:18:56,193 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-02-14 16:18:56,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:18:56,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:18:56,194 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2019-02-14 16:18:56,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:18:56,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:56,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:18:56,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:56,200 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:18:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:56,522 WARN L181 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:18:56,740 WARN L181 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2019-02-14 16:18:57,140 WARN L181 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2019-02-14 16:18:57,285 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 16:18:57,287 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 16:18:57,288 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 16:18:57,289 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 16:18:57,290 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 16:18:57,291 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 16:18:57,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:18:57,292 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:18:57,292 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 6 with the following transitions: [2019-02-14 16:18:57,295 INFO L207 CegarAbsIntRunner]: [0], [4], [5], [6] [2019-02-14 16:18:57,332 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-02-14 16:18:57,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-14 16:18:57,525 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-14 16:18:57,527 INFO L272 AbstractInterpreter]: Visited 4 different actions 11 times. Merged at 3 different actions 7 times. Never widened. Performed 46 root evaluator evaluations with a maximum evaluation depth of 3. Performed 46 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-14 16:18:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:18:57,534 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-14 16:18:57,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:18:57,534 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 16:18:57,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:18:57,544 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:18:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:57,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:18:57,640 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 16:18:57,645 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:18:57,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:18:57,652 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:18:57,655 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:18:57,655 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 16:18:57,655 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:18:57,892 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 16:18:57,910 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:18:57,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:18:57,948 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:18:57,960 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 16:18:57,963 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 16:18:57,968 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 16:18:57,969 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 16:18:57,974 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 16:18:57,974 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 16:18:57,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:18:58,185 INFO L273 TraceCheckUtils]: 4: Hoare triple {78#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-14 16:18:58,187 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 16:18:58,204 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 16:18:58,205 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 16:18:58,206 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 16:18:58,207 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 16:18:58,228 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:18:58,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2019-02-14 16:18:58,228 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:18:58,229 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-14 16:18:58,229 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:18:58,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2019-02-14 16:18:58,267 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 16:18:58,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-02-14 16:18:58,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-02-14 16:18:58,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-14 16:18:58,269 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2019-02-14 16:18:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:58,583 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-14 16:18:58,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-02-14 16:18:58,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-14 16:18:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:18:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-14 16:18:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-14 16:18:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-14 16:18:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-14 16:18:58,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 10 transitions. [2019-02-14 16:18:58,644 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 16:18:58,645 INFO L225 Difference]: With dead ends: 10 [2019-02-14 16:18:58,645 INFO L226 Difference]: Without dead ends: 9 [2019-02-14 16:18:58,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-14 16:18:58,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-02-14 16:18:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-02-14 16:18:58,667 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:18:58,667 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 8 states. [2019-02-14 16:18:58,667 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 8 states. [2019-02-14 16:18:58,667 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 8 states. [2019-02-14 16:18:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:58,671 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-14 16:18:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-14 16:18:58,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:18:58,672 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:18:58,672 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 9 states. [2019-02-14 16:18:58,672 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 9 states. [2019-02-14 16:18:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:58,674 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-14 16:18:58,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-14 16:18:58,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:18:58,676 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:18:58,676 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:18:58,676 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:18:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-14 16:18:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-02-14 16:18:58,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-02-14 16:18:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:18:58,677 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-02-14 16:18:58,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-02-14 16:18:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-14 16:18:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-02-14 16:18:58,679 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:18:58,679 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2019-02-14 16:18:58,679 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:18:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:18:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2019-02-14 16:18:58,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:18:58,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:58,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:18:58,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:18:58,682 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:18:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:59,177 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 16:18:59,178 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 16:18:59,180 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 16:18:59,185 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 16:18:59,186 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 16:18:59,187 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 16:18:59,187 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 16:18:59,188 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 16:18:59,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:18:59,188 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:18:59,188 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:18:59,189 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:18:59,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:18:59,189 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 16:18:59,199 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:18:59,199 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:18:59,209 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-02-14 16:18:59,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:18:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:18:59,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:18:59,228 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 16:18:59,230 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:18:59,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:18:59,237 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:18:59,240 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:18:59,240 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 16:18:59,240 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:18:59,372 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 16:18:59,379 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:18:59,383 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:18:59,384 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:18:59,440 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 16:18:59,440 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 16:18:59,441 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 16:18:59,442 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 16:18:59,443 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 16:18:59,444 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 16:18:59,445 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 16:18:59,446 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 16:18:59,446 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:18:59,683 INFO L273 TraceCheckUtils]: 6: Hoare triple {168#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {137#false} is VALID [2019-02-14 16:18:59,685 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 16:18:59,688 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 16:18:59,691 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 16:18:59,692 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 16:18:59,693 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 16:18:59,694 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 16:18:59,694 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 16:18:59,716 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:18:59,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2019-02-14 16:18:59,716 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:18:59,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-14 16:18:59,717 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:18:59,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-02-14 16:18:59,740 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 16:18:59,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-02-14 16:18:59,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-02-14 16:18:59,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-14 16:18:59,742 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-02-14 16:18:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:18:59,978 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-02-14 16:18:59,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-02-14 16:18:59,979 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-14 16:18:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:18:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-14 16:18:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-14 16:18:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-14 16:18:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-14 16:18:59,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-02-14 16:18:59,995 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 16:18:59,996 INFO L225 Difference]: With dead ends: 12 [2019-02-14 16:18:59,996 INFO L226 Difference]: Without dead ends: 11 [2019-02-14 16:18:59,996 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-14 16:18:59,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-02-14 16:19:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-02-14 16:19:00,020 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:00,020 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 10 states. [2019-02-14 16:19:00,020 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 10 states. [2019-02-14 16:19:00,021 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 10 states. [2019-02-14 16:19:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:00,022 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-14 16:19:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-14 16:19:00,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:00,023 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:00,023 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 11 states. [2019-02-14 16:19:00,024 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 11 states. [2019-02-14 16:19:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:00,025 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-14 16:19:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-14 16:19:00,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:00,025 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:00,025 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:00,025 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-02-14 16:19:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-02-14 16:19:00,026 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-02-14 16:19:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:00,027 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-02-14 16:19:00,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-02-14 16:19:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-02-14 16:19:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-02-14 16:19:00,027 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:00,027 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2019-02-14 16:19:00,028 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:00,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:00,028 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2019-02-14 16:19:00,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:00,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:00,029 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:00,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:00,029 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:00,450 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 16:19:00,451 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 16:19:00,452 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 16:19:00,453 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 16:19:00,454 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 16:19:00,455 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 16:19:00,463 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 16:19:00,464 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 16:19:00,465 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 16:19:00,466 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 16:19:00,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:00,466 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:00,466 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:00,466 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:00,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:00,467 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 16:19:00,475 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:00,475 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:00,481 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:00,481 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:00,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:00,495 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 16:19:00,497 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:00,501 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:00,501 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:00,503 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:00,503 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 16:19:00,504 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:00,655 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 16:19:00,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:00,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:00,673 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:00,683 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 16:19:00,684 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 16:19:00,684 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 16:19:00,685 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 16:19:00,690 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 16:19:00,691 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 16:19:00,692 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 16:19:00,694 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 16:19:00,695 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 16:19:00,695 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 16:19:00,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:00,942 INFO L273 TraceCheckUtils]: 8: Hoare triple {283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-14 16:19:00,943 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 16:19:00,944 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 16:19:00,945 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 16:19:00,946 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 16:19:00,947 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 16:19:00,951 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 16:19:00,952 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 16:19:00,970 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 16:19:00,971 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 16:19:00,996 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:00,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2019-02-14 16:19:00,996 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:00,996 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-14 16:19:00,997 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:00,997 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2019-02-14 16:19:01,018 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 16:19:01,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-02-14 16:19:01,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-02-14 16:19:01,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-14 16:19:01,019 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 13 states. [2019-02-14 16:19:01,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:01,225 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-14 16:19:01,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-02-14 16:19:01,226 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-14 16:19:01,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-14 16:19:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-14 16:19:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-14 16:19:01,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-14 16:19:01,228 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 14 transitions. [2019-02-14 16:19:01,269 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 16:19:01,270 INFO L225 Difference]: With dead ends: 14 [2019-02-14 16:19:01,270 INFO L226 Difference]: Without dead ends: 13 [2019-02-14 16:19:01,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-14 16:19:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-02-14 16:19:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-02-14 16:19:01,295 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:01,295 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2019-02-14 16:19:01,295 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2019-02-14 16:19:01,295 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2019-02-14 16:19:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:01,296 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-14 16:19:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-14 16:19:01,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:01,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:01,297 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2019-02-14 16:19:01,297 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2019-02-14 16:19:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:01,298 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-14 16:19:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-14 16:19:01,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:01,299 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:01,299 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:01,299 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-02-14 16:19:01,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-02-14 16:19:01,300 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-02-14 16:19:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:01,301 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-02-14 16:19:01,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-02-14 16:19:01,301 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-02-14 16:19:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-02-14 16:19:01,301 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:01,301 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2019-02-14 16:19:01,302 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:01,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:01,302 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2019-02-14 16:19:01,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:01,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:01,303 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:01,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:01,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:01,696 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 16:19:01,698 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 16:19:01,700 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 16:19:01,701 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 16:19:01,702 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 16:19:01,703 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 16:19:01,704 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 16:19:01,705 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 16:19:01,707 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 16:19:01,708 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 16:19:01,709 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 16:19:01,711 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 16:19:01,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:01,712 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:01,712 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:01,712 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:01,712 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:01,712 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 16:19:01,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:01,730 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:19:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:01,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:01,847 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 16:19:01,850 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:01,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:01,854 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:01,856 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:01,857 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 16:19:01,857 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:02,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2019-02-14 16:19:02,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:02,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:02,045 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:02,076 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 16:19:02,077 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 16:19:02,078 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 16:19:02,078 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 16:19:02,079 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 16:19:02,079 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 16:19:02,080 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 16:19:02,080 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 16:19:02,081 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 16:19:02,083 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 16:19:02,084 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 16:19:02,085 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 16:19:02,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:02,347 INFO L273 TraceCheckUtils]: 10: Hoare triple {423#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-14 16:19:02,349 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 16:19:02,350 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 16:19:02,351 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 16:19:02,351 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 16:19:02,353 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 16:19:02,353 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 16:19:02,355 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 16:19:02,355 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 16:19:02,356 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 16:19:02,358 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 16:19:02,359 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 16:19:02,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:02,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2019-02-14 16:19:02,379 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:02,379 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-14 16:19:02,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:02,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2019-02-14 16:19:02,405 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 16:19:02,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-02-14 16:19:02,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-02-14 16:19:02,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-02-14 16:19:02,407 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2019-02-14 16:19:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:02,955 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-02-14 16:19:02,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-02-14 16:19:02,956 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-14 16:19:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-14 16:19:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-14 16:19:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-14 16:19:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-14 16:19:02,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 16 transitions. [2019-02-14 16:19:02,988 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 16:19:02,989 INFO L225 Difference]: With dead ends: 16 [2019-02-14 16:19:02,990 INFO L226 Difference]: Without dead ends: 15 [2019-02-14 16:19:02,991 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 16:19:02,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-02-14 16:19:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-02-14 16:19:03,031 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:03,031 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2019-02-14 16:19:03,031 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2019-02-14 16:19:03,031 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2019-02-14 16:19:03,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:03,033 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-14 16:19:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-14 16:19:03,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:03,034 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:03,034 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2019-02-14 16:19:03,034 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2019-02-14 16:19:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:03,035 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-14 16:19:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-14 16:19:03,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:03,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:03,036 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:03,036 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-02-14 16:19:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-02-14 16:19:03,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-02-14 16:19:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:03,038 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-02-14 16:19:03,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-02-14 16:19:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-02-14 16:19:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-02-14 16:19:03,038 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:03,039 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2019-02-14 16:19:03,039 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2019-02-14 16:19:03,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:03,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:03,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:03,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:03,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:03,693 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 16:19:03,694 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 16:19:03,695 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 16:19:03,697 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 16:19:03,698 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 16:19:03,699 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 16:19:03,701 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 16:19:03,702 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 16:19:03,708 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 16:19:03,709 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 16:19:03,710 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 16:19:03,711 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 16:19:03,711 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 16:19:03,712 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 16:19:03,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:03,713 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:03,713 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:03,713 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:03,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:03,714 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 16:19:03,732 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:19:03,732 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:19:03,758 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-02-14 16:19:03,758 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:03,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:03,783 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 16:19:03,787 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:03,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:03,796 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:03,798 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:03,798 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 16:19:03,798 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:04,011 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 16:19:04,014 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:04,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:04,019 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:04,022 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:04,022 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 16:19:04,023 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 20 .cse0)) (<= main_i 24) (<= 20 .cse0))) [2019-02-14 16:19:04,035 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 16:19:04,036 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 16:19:04,036 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 16:19:04,037 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 16:19:04,038 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 16:19:04,039 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 16:19:04,040 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 16:19:04,041 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 16:19:04,042 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 16:19:04,042 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 16:19:04,058 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 16:19:04,064 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 16:19:04,064 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 16:19:04,065 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 16:19:04,065 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:04,325 INFO L273 TraceCheckUtils]: 12: Hoare triple {588#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {533#false} is VALID [2019-02-14 16:19:04,326 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 16:19:04,327 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 16:19:04,332 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 16:19:04,332 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 16:19:04,350 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 16:19:04,357 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 16:19:04,358 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 16:19:04,358 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 16:19:04,359 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 16:19:04,359 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 16:19:04,360 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 16:19:04,361 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 16:19:04,362 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 16:19:04,381 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:04,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2019-02-14 16:19:04,382 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:04,382 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-14 16:19:04,382 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:04,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-02-14 16:19:04,414 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 16:19:04,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-02-14 16:19:04,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-02-14 16:19:04,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-14 16:19:04,415 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 17 states. [2019-02-14 16:19:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:04,871 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-02-14 16:19:04,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-02-14 16:19:04,872 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-14 16:19:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-14 16:19:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-14 16:19:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-14 16:19:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-14 16:19:04,874 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2019-02-14 16:19:04,893 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 16:19:04,895 INFO L225 Difference]: With dead ends: 18 [2019-02-14 16:19:04,895 INFO L226 Difference]: Without dead ends: 17 [2019-02-14 16:19:04,896 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-14 16:19:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-02-14 16:19:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-02-14 16:19:04,913 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:04,913 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 16 states. [2019-02-14 16:19:04,913 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 16 states. [2019-02-14 16:19:04,913 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 16 states. [2019-02-14 16:19:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:04,915 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-14 16:19:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-14 16:19:04,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:04,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:04,916 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 17 states. [2019-02-14 16:19:04,916 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 17 states. [2019-02-14 16:19:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:04,917 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-14 16:19:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-14 16:19:04,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:04,918 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:04,918 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:04,918 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-02-14 16:19:04,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-02-14 16:19:04,919 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2019-02-14 16:19:04,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:04,920 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-02-14 16:19:04,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-02-14 16:19:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-02-14 16:19:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-02-14 16:19:04,920 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:04,921 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2019-02-14 16:19:04,921 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:04,921 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2019-02-14 16:19:04,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:04,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:04,922 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:04,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:04,923 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:05,335 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 16:19:05,346 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 16:19:05,347 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 16:19:05,348 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 16:19:05,348 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 16:19:05,349 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 16:19:05,350 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 16:19:05,350 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 16:19:05,351 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 16:19:05,352 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 16:19:05,353 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 16:19:05,354 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 16:19:05,356 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 16:19:05,357 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 16:19:05,358 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 16:19:05,360 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 16:19:05,360 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:05,360 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:05,361 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:05,361 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:05,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:05,361 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 16:19:05,375 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:05,375 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:05,388 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:05,388 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:05,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:05,408 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 16:19:05,410 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:05,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:05,419 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:05,421 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:05,421 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 16:19:05,421 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:05,624 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 16:19:05,627 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:05,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:05,634 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:05,637 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:05,637 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 16:19:05,637 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 24 .cse0) (not (= 24 .cse0)) (<= main_i 28))) [2019-02-14 16:19:05,649 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 16:19:05,651 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 16:19:05,652 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 16:19:05,652 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 16:19:05,653 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 16:19:05,653 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 16:19:05,654 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 16:19:05,654 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 16:19:05,655 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 16:19:05,656 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 16:19:05,657 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 16:19:05,658 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 16:19:05,659 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 16:19:05,660 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 16:19:05,660 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 16:19:05,662 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 16:19:05,662 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:06,187 INFO L273 TraceCheckUtils]: 14: Hoare triple {778#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {715#false} is VALID [2019-02-14 16:19:06,188 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 16:19:06,189 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 16:19:06,191 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 16:19:06,191 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 16:19:06,192 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 16:19:06,193 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 16:19:06,194 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 16:19:06,195 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 16:19:06,196 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 16:19:06,197 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 16:19:06,198 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 16:19:06,198 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 16:19:06,199 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 16:19:06,201 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 16:19:06,202 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 16:19:06,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:06,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2019-02-14 16:19:06,223 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:06,223 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-14 16:19:06,224 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:06,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2019-02-14 16:19:06,280 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 16:19:06,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-02-14 16:19:06,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-02-14 16:19:06,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-02-14 16:19:06,283 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 19 states. [2019-02-14 16:19:06,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:06,807 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-02-14 16:19:06,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-02-14 16:19:06,807 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-14 16:19:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:06,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-14 16:19:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-14 16:19:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-14 16:19:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-14 16:19:06,810 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 20 transitions. [2019-02-14 16:19:06,840 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 16:19:06,841 INFO L225 Difference]: With dead ends: 20 [2019-02-14 16:19:06,841 INFO L226 Difference]: Without dead ends: 19 [2019-02-14 16:19:06,843 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 16:19:06,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-02-14 16:19:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-02-14 16:19:06,865 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:06,865 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 18 states. [2019-02-14 16:19:06,866 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 18 states. [2019-02-14 16:19:06,866 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 18 states. [2019-02-14 16:19:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:06,868 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-14 16:19:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-14 16:19:06,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:06,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:06,868 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 19 states. [2019-02-14 16:19:06,868 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 19 states. [2019-02-14 16:19:06,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:06,869 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-14 16:19:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-14 16:19:06,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:06,870 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:06,870 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:06,870 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-02-14 16:19:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-02-14 16:19:06,871 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-02-14 16:19:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:06,872 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-02-14 16:19:06,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-02-14 16:19:06,872 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-02-14 16:19:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-02-14 16:19:06,873 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:06,873 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2019-02-14 16:19:06,873 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:06,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2019-02-14 16:19:06,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:06,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:06,875 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:06,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:06,875 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:07,387 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 16:19:07,388 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 16:19:07,389 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 16:19:07,390 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 16:19:07,391 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 16:19:07,393 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 16:19:07,394 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 16:19:07,395 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 16:19:07,396 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 16:19:07,399 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 16:19:07,400 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 16:19:07,401 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 16:19:07,401 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 16:19:07,402 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 16:19:07,403 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 16:19:07,403 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 16:19:07,404 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 16:19:07,407 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 16:19:07,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:07,407 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:07,408 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:07,408 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:07,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:07,408 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 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 16:19:07,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:07,428 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:19:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:07,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:07,489 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 16:19:07,491 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:07,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:07,498 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:07,500 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:07,500 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 16:19:07,501 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:07,799 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 16:19:07,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:07,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:07,806 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:07,809 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:07,810 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 16:19:07,810 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= 28 .cse0)) (<= 28 .cse0))) [2019-02-14 16:19:07,861 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 16:19:07,861 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 16:19:07,863 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 16:19:07,864 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 16:19:07,865 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 16:19:07,870 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 16:19:07,872 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 16:19:07,872 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 16:19:07,874 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 16:19:07,874 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 16:19:07,876 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 16:19:07,877 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 16:19:07,879 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 16:19:07,879 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 16:19:07,881 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 16:19:07,881 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 16:19:07,884 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 16:19:07,885 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 16:19:07,886 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:08,539 INFO L273 TraceCheckUtils]: 16: Hoare triple {993#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-14 16:19:08,541 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 16:19:08,541 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 16:19:08,543 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 16:19:08,543 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 16:19:08,545 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 16:19:08,545 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 16:19:08,547 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 16:19:08,548 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 16:19:08,549 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 16:19:08,550 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 16:19:08,551 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 16:19:08,551 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 16:19:08,552 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 16:19:08,553 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 16:19:08,554 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 16:19:08,555 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 16:19:08,557 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 16:19:08,575 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:08,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2019-02-14 16:19:08,575 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:08,576 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-14 16:19:08,576 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:08,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2019-02-14 16:19:08,632 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 16:19:08,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-02-14 16:19:08,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-02-14 16:19:08,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-02-14 16:19:08,633 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 21 states. [2019-02-14 16:19:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:09,494 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-02-14 16:19:09,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-02-14 16:19:09,494 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-14 16:19:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-14 16:19:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-14 16:19:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-14 16:19:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-14 16:19:09,497 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 22 transitions. [2019-02-14 16:19:09,520 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 16:19:09,521 INFO L225 Difference]: With dead ends: 22 [2019-02-14 16:19:09,521 INFO L226 Difference]: Without dead ends: 21 [2019-02-14 16:19:09,522 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 16:19:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-02-14 16:19:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-02-14 16:19:09,543 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:09,543 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 20 states. [2019-02-14 16:19:09,543 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 20 states. [2019-02-14 16:19:09,543 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 20 states. [2019-02-14 16:19:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:09,544 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-14 16:19:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-14 16:19:09,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:09,545 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:09,545 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 21 states. [2019-02-14 16:19:09,545 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 21 states. [2019-02-14 16:19:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:09,546 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-14 16:19:09,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-14 16:19:09,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:09,547 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:09,547 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:09,547 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-02-14 16:19:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-02-14 16:19:09,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-02-14 16:19:09,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:09,549 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-02-14 16:19:09,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-02-14 16:19:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-02-14 16:19:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-02-14 16:19:09,550 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:09,550 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2019-02-14 16:19:09,550 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:09,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2019-02-14 16:19:09,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:09,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:09,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:09,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:09,552 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:10,062 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 16:19:10,063 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 16:19:10,064 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 16:19:10,065 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 16:19:10,066 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 16:19:10,068 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 16:19:10,069 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 16:19:10,070 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 16:19:10,071 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 16:19:10,072 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 16:19:10,073 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 16:19:10,074 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 16:19:10,075 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 16:19:10,077 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 16:19:10,078 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 16:19:10,079 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 16:19:10,082 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 16:19:10,083 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 16:19:10,084 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 16:19:10,086 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 16:19:10,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:10,087 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:10,087 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:10,087 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:10,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:10,087 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 16:19:10,096 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:19:10,096 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:19:10,115 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-02-14 16:19:10,116 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:10,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:10,130 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 16:19:10,135 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:10,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:10,143 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:10,145 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:10,145 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 16:19:10,145 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:10,505 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 16:19:10,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:10,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:10,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:10,517 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:10,517 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 16:19:10,517 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= 32 .cse0)) (<= 32 .cse0))) [2019-02-14 16:19:10,544 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 16:19:10,551 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 16:19:10,554 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 16:19:10,555 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 16:19:10,556 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 16:19:10,556 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 16:19:10,557 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 16:19:10,558 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 16:19:10,559 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 16:19:10,560 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 16:19:10,560 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 16:19:10,561 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 16:19:10,562 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 16:19:10,563 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 16:19:10,564 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 16:19:10,565 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 16:19:10,565 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 16:19:10,566 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 16:19:10,567 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 16:19:10,569 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 16:19:10,569 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:11,147 INFO L273 TraceCheckUtils]: 18: Hoare triple {1233#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-14 16:19:11,148 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 16:19:11,149 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 16:19:11,150 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 16:19:11,150 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 16:19:11,152 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 16:19:11,152 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 16:19:11,154 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 16:19:11,155 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 16:19:11,156 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 16:19:11,157 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 16:19:11,158 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 16:19:11,159 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 16:19:11,161 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 16:19:11,162 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 16:19:11,163 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 16:19:11,164 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 16:19:11,165 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 16:19:11,167 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 16:19:11,170 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 16:19:11,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:11,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2019-02-14 16:19:11,190 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:11,191 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-14 16:19:11,191 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:11,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-02-14 16:19:11,249 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 16:19:11,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-02-14 16:19:11,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-02-14 16:19:11,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-14 16:19:11,251 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 23 states. [2019-02-14 16:19:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:11,894 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-02-14 16:19:11,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-02-14 16:19:11,894 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-14 16:19:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-14 16:19:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-14 16:19:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-14 16:19:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-14 16:19:11,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 24 transitions. [2019-02-14 16:19:11,920 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 16:19:11,921 INFO L225 Difference]: With dead ends: 24 [2019-02-14 16:19:11,921 INFO L226 Difference]: Without dead ends: 23 [2019-02-14 16:19:11,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-14 16:19:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-02-14 16:19:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-02-14 16:19:11,943 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:11,943 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 22 states. [2019-02-14 16:19:11,944 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 22 states. [2019-02-14 16:19:11,944 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 22 states. [2019-02-14 16:19:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:11,946 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-14 16:19:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-14 16:19:11,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:11,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:11,946 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 23 states. [2019-02-14 16:19:11,946 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 23 states. [2019-02-14 16:19:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:11,948 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-14 16:19:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-14 16:19:11,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:11,948 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:11,948 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:11,948 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-02-14 16:19:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-02-14 16:19:11,949 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2019-02-14 16:19:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:11,950 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-02-14 16:19:11,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-02-14 16:19:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-02-14 16:19:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-02-14 16:19:11,951 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:11,951 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2019-02-14 16:19:11,951 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2019-02-14 16:19:11,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:11,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:11,952 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:11,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:11,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:12,489 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 16:19:12,491 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 16:19:12,492 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 16:19:12,493 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 16:19:12,494 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 16:19:12,496 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 16:19:12,497 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 16:19:12,498 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 16:19:12,499 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 16:19:12,500 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 16:19:12,501 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 16:19:12,502 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 16:19:12,503 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 16:19:12,504 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 16:19:12,505 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 16:19:12,506 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 16:19:12,507 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 16:19:12,510 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 16:19:12,511 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 16:19:12,513 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 16:19:12,513 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 16:19:12,517 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 16:19:12,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:12,517 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:12,517 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:12,517 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:12,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:12,517 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 16:19:12,526 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:12,527 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:12,539 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:12,539 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:12,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:12,557 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 16:19:12,562 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:12,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:12,569 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:12,571 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:12,571 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 16:19:12,571 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:12,970 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 16:19:12,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:12,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:12,983 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:12,986 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:12,986 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 16:19:12,986 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= 36 .cse0)) (<= 36 .cse0))) [2019-02-14 16:19:13,006 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 16:19:13,009 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 16:19:13,010 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 16:19:13,011 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 16:19:13,011 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 16:19:13,013 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 16:19:13,014 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 16:19:13,015 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 16:19:13,015 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 16:19:13,018 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 16:19:13,019 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 16:19:13,020 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 16:19:13,021 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 16:19:13,022 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 16:19:13,022 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 16:19:13,024 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 16:19:13,024 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 16:19:13,026 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 16:19:13,027 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 16:19:13,028 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 16:19:13,028 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 16:19:13,029 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 16:19:13,030 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:13,690 INFO L273 TraceCheckUtils]: 20: Hoare triple {1498#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-14 16:19:13,691 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 16:19:13,692 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 16:19:13,693 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 16:19:13,694 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 16:19:13,695 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 16:19:13,696 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 16:19:13,697 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 16:19:13,698 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 16:19:13,699 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 16:19:13,700 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 16:19:13,701 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 16:19:13,702 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 16:19:13,703 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 16:19:13,704 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 16:19:13,705 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 16:19:13,705 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 16:19:13,707 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 16:19:13,707 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 16:19:13,708 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 16:19:13,710 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 16:19:13,713 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 16:19:13,732 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:13,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2019-02-14 16:19:13,733 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:13,733 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-14 16:19:13,733 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:13,734 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2019-02-14 16:19:13,784 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 16:19:13,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-02-14 16:19:13,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-02-14 16:19:13,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-02-14 16:19:13,786 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 25 states. [2019-02-14 16:19:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:14,626 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-02-14 16:19:14,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-02-14 16:19:14,626 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-14 16:19:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-14 16:19:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-14 16:19:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-14 16:19:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-14 16:19:14,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 26 transitions. [2019-02-14 16:19:14,661 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 16:19:14,663 INFO L225 Difference]: With dead ends: 26 [2019-02-14 16:19:14,663 INFO L226 Difference]: Without dead ends: 25 [2019-02-14 16:19:14,664 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 16:19:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-02-14 16:19:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-02-14 16:19:14,686 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:14,687 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 24 states. [2019-02-14 16:19:14,687 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 24 states. [2019-02-14 16:19:14,687 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 24 states. [2019-02-14 16:19:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:14,689 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-14 16:19:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-14 16:19:14,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:14,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:14,689 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 25 states. [2019-02-14 16:19:14,689 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 25 states. [2019-02-14 16:19:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:14,690 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-14 16:19:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-14 16:19:14,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:14,691 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:14,691 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:14,691 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-02-14 16:19:14,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-02-14 16:19:14,692 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2019-02-14 16:19:14,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:14,692 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-02-14 16:19:14,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-02-14 16:19:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-02-14 16:19:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-02-14 16:19:14,693 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:14,693 INFO L402 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2019-02-14 16:19:14,693 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:14,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:14,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2019-02-14 16:19:14,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:14,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:14,694 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:14,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:14,695 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:15,317 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 16:19:15,319 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 16:19:15,319 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 16:19:15,321 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 16:19:15,321 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 16:19:15,322 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 16:19:15,323 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 16:19:15,324 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 16:19:15,325 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 16:19:15,326 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 16:19:15,327 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 16:19:15,328 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 16:19:15,329 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 16:19:15,330 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 16:19:15,331 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 16:19:15,332 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 16:19:15,333 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 16:19:15,334 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 16:19:15,335 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 16:19:15,336 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 16:19:15,337 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 16:19:15,338 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 16:19:15,339 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 16:19:15,343 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 16:19:15,343 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:15,343 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:15,343 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:15,344 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:15,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:15,344 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 16:19:15,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:15,360 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:19:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:15,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:15,411 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 16:19:15,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:15,425 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:15,425 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:15,427 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:15,428 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 16:19:15,428 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:15,831 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 16:19:15,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:15,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:15,841 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:15,846 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:15,847 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 16:19:15,847 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= 40 .cse0)) (<= main_i 44))) [2019-02-14 16:19:15,872 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 16:19:15,874 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 16:19:15,875 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 16:19:15,876 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 16:19:15,877 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 16:19:15,878 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 16:19:15,882 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 16:19:15,884 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 16:19:15,885 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 16:19:15,886 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 16:19:15,886 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 16:19:15,887 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 16:19:15,887 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 16:19:15,888 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 16:19:15,889 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 16:19:15,890 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 16:19:15,891 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 16:19:15,892 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 16:19:15,892 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 16:19:15,893 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 16:19:15,894 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 16:19:15,896 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 16:19:15,897 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 16:19:15,900 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 16:19:15,900 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:16,514 INFO L273 TraceCheckUtils]: 22: Hoare triple {1788#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-14 16:19:16,516 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 16:19:16,517 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 16:19:16,518 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 16:19:16,519 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 16:19:16,520 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 16:19:16,520 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 16:19:16,522 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 16:19:16,522 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 16:19:16,524 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 16:19:16,524 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 16:19:16,525 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 16:19:16,526 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 16:19:16,527 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 16:19:16,528 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 16:19:16,529 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 16:19:16,530 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 16:19:16,531 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 16:19:16,532 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 16:19:16,533 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 16:19:16,534 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 16:19:16,535 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 16:19:16,536 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 16:19:16,540 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 16:19:16,559 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:16,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 38 [2019-02-14 16:19:16,559 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:16,560 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-14 16:19:16,560 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:16,560 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2019-02-14 16:19:16,620 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 16:19:16,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-02-14 16:19:16,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-02-14 16:19:16,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-02-14 16:19:16,622 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 27 states. [2019-02-14 16:19:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:17,606 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-02-14 16:19:17,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-02-14 16:19:17,607 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-14 16:19:17,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-14 16:19:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-14 16:19:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-14 16:19:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-14 16:19:17,609 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 28 transitions. [2019-02-14 16:19:17,659 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 16:19:17,661 INFO L225 Difference]: With dead ends: 28 [2019-02-14 16:19:17,661 INFO L226 Difference]: Without dead ends: 27 [2019-02-14 16:19:17,662 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 16:19:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-02-14 16:19:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-02-14 16:19:17,744 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:17,744 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 26 states. [2019-02-14 16:19:17,744 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 26 states. [2019-02-14 16:19:17,744 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 26 states. [2019-02-14 16:19:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:17,745 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-14 16:19:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-14 16:19:17,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:17,745 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:17,745 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 27 states. [2019-02-14 16:19:17,745 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 27 states. [2019-02-14 16:19:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:17,746 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-14 16:19:17,746 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-14 16:19:17,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:17,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:17,747 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:17,747 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-02-14 16:19:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-02-14 16:19:17,748 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2019-02-14 16:19:17,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:17,748 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-02-14 16:19:17,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-02-14 16:19:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-02-14 16:19:17,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-02-14 16:19:17,749 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:17,749 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2019-02-14 16:19:17,750 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:17,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:17,750 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2019-02-14 16:19:17,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:17,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:17,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:17,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:17,751 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:18,815 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 16:19:18,816 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 16:19:18,817 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 16:19:18,818 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 16:19:18,819 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 16:19:18,820 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 16:19:18,821 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 16:19:18,822 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 16:19:18,823 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 16:19:18,824 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 16:19:18,825 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 16:19:18,826 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 16:19:18,827 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 16:19:18,828 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 16:19:18,829 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 16:19:18,830 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 16:19:18,831 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 16:19:18,832 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 16:19:18,833 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 16:19:18,834 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 16:19:18,835 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 16:19:18,837 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 16:19:18,838 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 16:19:18,839 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 16:19:18,840 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 16:19:18,844 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 16:19:18,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:18,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:18,844 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:18,844 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:18,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:18,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 16:19:18,853 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:19:18,853 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:19:18,866 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-02-14 16:19:18,866 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:18,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:18,889 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 16:19:18,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:18,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:18,900 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:18,901 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:18,902 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 16:19:18,902 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:19,272 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 16:19:19,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:19,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:19,280 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:19,282 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:19,283 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 16:19:19,283 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 44 .cse0)) (<= 44 .cse0) (<= main_i 48))) [2019-02-14 16:19:19,301 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 16:19:19,301 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 16:19:19,302 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 16:19:19,302 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 16:19:19,303 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 16:19:19,304 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 16:19:19,305 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 16:19:19,306 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 16:19:19,306 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 16:19:19,307 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 16:19:19,308 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 16:19:19,309 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 16:19:19,309 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 16:19:19,310 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 16:19:19,311 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 16:19:19,312 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 16:19:19,312 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 16:19:19,313 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 16:19:19,314 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 16:19:19,315 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 16:19:19,316 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 16:19:19,316 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 16:19:19,317 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 16:19:19,318 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 16:19:19,319 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 16:19:19,321 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 16:19:19,322 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:19,971 INFO L273 TraceCheckUtils]: 24: Hoare triple {2103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-14 16:19:19,972 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 16:19:19,973 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 16:19:19,974 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 16:19:19,974 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 16:19:19,976 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 16:19:19,976 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 16:19:19,977 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 16:19:19,978 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 16:19:19,979 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 16:19:19,979 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 16:19:19,981 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 16:19:19,981 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 16:19:19,982 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 16:19:19,983 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 16:19:19,984 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 16:19:19,985 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 16:19:19,986 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 16:19:19,986 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 16:19:19,987 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 16:19:19,988 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 16:19:19,989 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 16:19:19,990 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 16:19:19,991 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 16:19:19,992 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 16:19:19,995 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 16:19:20,014 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:20,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 41 [2019-02-14 16:19:20,015 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:20,015 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-14 16:19:20,015 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:20,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-02-14 16:19:20,072 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 16:19:20,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-02-14 16:19:20,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-02-14 16:19:20,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-02-14 16:19:20,074 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 29 states. [2019-02-14 16:19:21,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:21,127 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-02-14 16:19:21,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-02-14 16:19:21,127 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-14 16:19:21,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-14 16:19:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-14 16:19:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-14 16:19:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-14 16:19:21,130 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 30 transitions. [2019-02-14 16:19:21,164 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 16:19:21,165 INFO L225 Difference]: With dead ends: 30 [2019-02-14 16:19:21,165 INFO L226 Difference]: Without dead ends: 29 [2019-02-14 16:19:21,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-02-14 16:19:21,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-02-14 16:19:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-02-14 16:19:21,206 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:21,206 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 28 states. [2019-02-14 16:19:21,207 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 28 states. [2019-02-14 16:19:21,207 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 28 states. [2019-02-14 16:19:21,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:21,208 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-14 16:19:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-14 16:19:21,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:21,209 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:21,209 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 29 states. [2019-02-14 16:19:21,209 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 29 states. [2019-02-14 16:19:21,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:21,210 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-14 16:19:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-14 16:19:21,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:21,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:21,210 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:21,210 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-02-14 16:19:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-02-14 16:19:21,211 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2019-02-14 16:19:21,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:21,211 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-02-14 16:19:21,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-02-14 16:19:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-02-14 16:19:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-02-14 16:19:21,212 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:21,212 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2019-02-14 16:19:21,212 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2019-02-14 16:19:21,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:21,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:21,213 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:21,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:21,214 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:22,010 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 16:19:22,011 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 16:19:22,012 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 16:19:22,013 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 16:19:22,014 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 16:19:22,015 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 16:19:22,016 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 16:19:22,017 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 16:19:22,018 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 16:19:22,020 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 16:19:22,020 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 16:19:22,022 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 16:19:22,023 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 16:19:22,024 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 16:19:22,041 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 16:19:22,042 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 16:19:22,042 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 16:19:22,043 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 16:19:22,044 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 16:19:22,044 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 16:19:22,045 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 16:19:22,046 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 16:19:22,047 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 16:19:22,048 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 16:19:22,049 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 16:19:22,051 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 16:19:22,051 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 16:19:22,056 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 16:19:22,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:22,056 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:22,056 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:22,057 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:22,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:22,057 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 16:19:22,066 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:22,066 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:22,077 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:22,077 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:22,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:22,105 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 16:19:22,110 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:22,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:22,115 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:22,116 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:22,117 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 16:19:22,117 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:22,555 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 16:19:22,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:22,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:22,564 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:22,567 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:22,568 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 16:19:22,568 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (<= 48 .cse0) (not (= 48 .cse0)))) [2019-02-14 16:19:22,587 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 16:19:22,588 INFO L273 TraceCheckUtils]: 1: Hoare triple {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2019-02-14 16:19:22,588 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 16:19:22,589 INFO L273 TraceCheckUtils]: 3: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-14 16:19:22,589 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 16:19:22,590 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 16:19:22,591 INFO L273 TraceCheckUtils]: 6: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2019-02-14 16:19:22,592 INFO L273 TraceCheckUtils]: 7: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-14 16:19:22,592 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 16:19:22,593 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 16:19:22,594 INFO L273 TraceCheckUtils]: 10: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-14 16:19:22,594 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 16:19:22,595 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 16:19:22,596 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 16:19:22,597 INFO L273 TraceCheckUtils]: 14: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-14 16:19:22,597 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 16:19:22,598 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 16:19:22,599 INFO L273 TraceCheckUtils]: 17: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2019-02-14 16:19:22,599 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 16:19:22,600 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 16:19:22,601 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 16:19:22,602 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 16:19:22,602 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 16:19:22,603 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 16:19:22,604 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 16:19:22,605 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 16:19:22,605 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 16:19:22,608 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 16:19:22,609 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:23,554 INFO L273 TraceCheckUtils]: 26: Hoare triple {2443#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-14 16:19:23,555 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 16:19:23,556 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 16:19:23,556 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 16:19:23,558 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 16:19:23,559 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 16:19:23,560 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 16:19:23,561 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 16:19:23,562 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 16:19:23,563 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 16:19:23,564 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 16:19:23,565 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 16:19:23,566 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 16:19:23,567 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 16:19:23,568 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 16:19:23,569 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 16:19:23,570 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 16:19:23,571 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 16:19:23,572 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 16:19:23,573 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 16:19:23,574 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 16:19:23,575 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 16:19:23,577 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 16:19:23,578 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 16:19:23,580 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 16:19:23,580 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 16:19:23,582 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 16:19:23,586 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 16:19:23,604 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:23,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2019-02-14 16:19:23,604 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:23,605 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-14 16:19:23,605 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:23,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2019-02-14 16:19:23,668 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 16:19:23,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-02-14 16:19:23,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-02-14 16:19:23,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-02-14 16:19:23,669 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 31 states. [2019-02-14 16:19:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:25,002 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-02-14 16:19:25,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-02-14 16:19:25,002 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-14 16:19:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-14 16:19:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-14 16:19:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-14 16:19:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-14 16:19:25,005 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 32 transitions. [2019-02-14 16:19:25,039 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 16:19:25,040 INFO L225 Difference]: With dead ends: 32 [2019-02-14 16:19:25,040 INFO L226 Difference]: Without dead ends: 31 [2019-02-14 16:19:25,042 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-02-14 16:19:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-02-14 16:19:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-02-14 16:19:25,071 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:25,071 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 30 states. [2019-02-14 16:19:25,071 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 30 states. [2019-02-14 16:19:25,071 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 30 states. [2019-02-14 16:19:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:25,072 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-14 16:19:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-14 16:19:25,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:25,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:25,073 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 31 states. [2019-02-14 16:19:25,073 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 31 states. [2019-02-14 16:19:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:25,074 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-14 16:19:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-14 16:19:25,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:25,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:25,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:25,075 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-02-14 16:19:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-02-14 16:19:25,075 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2019-02-14 16:19:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:25,076 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-02-14 16:19:25,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-02-14 16:19:25,076 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-02-14 16:19:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-02-14 16:19:25,076 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:25,076 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2019-02-14 16:19:25,077 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:25,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2019-02-14 16:19:25,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:25,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:25,078 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:25,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:25,078 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:25,983 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 16:19:25,984 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 16:19:25,985 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 16:19:25,986 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 16:19:25,987 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 16:19:25,988 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 16:19:25,989 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 16:19:25,990 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 16:19:25,991 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 16:19:25,992 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 16:19:25,993 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 16:19:25,994 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 16:19:25,995 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 16:19:25,996 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 16:19:25,997 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 16:19:25,998 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 16:19:25,999 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 16:19:26,000 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 16:19:26,001 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 16:19:26,002 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 16:19:26,003 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 16:19:26,004 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 16:19:26,005 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 16:19:26,006 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 16:19:26,007 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 16:19:26,008 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 16:19:26,009 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 16:19:26,010 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 16:19:26,011 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 16:19:26,016 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 16:19:26,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:26,016 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:26,017 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:26,017 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:26,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:26,017 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 16:19:26,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:26,026 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:19:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:26,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:26,053 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 16:19:26,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:26,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:26,060 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:26,062 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:26,062 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 16:19:26,062 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:26,594 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 16:19:26,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:26,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:26,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:26,602 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:26,603 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 16:19:26,603 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 52 .cse0)) (<= main_i 56) (<= 52 .cse0))) [2019-02-14 16:19:26,623 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 16:19:26,624 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 16:19:26,624 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 16:19:26,625 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 16:19:26,626 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 16:19:26,627 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 16:19:26,627 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 16:19:26,628 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 16:19:26,629 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 16:19:26,630 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 16:19:26,630 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 16:19:26,631 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 16:19:26,632 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 16:19:26,633 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 16:19:26,633 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 16:19:26,634 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 16:19:26,635 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 16:19:26,635 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 16:19:26,636 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 16:19:26,637 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 16:19:26,637 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 16:19:26,638 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 16:19:26,639 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 16:19:26,640 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 16:19:26,640 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 16:19:26,641 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 16:19:26,642 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 16:19:26,643 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 16:19:26,643 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 16:19:26,647 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 16:19:26,647 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:27,462 INFO L273 TraceCheckUtils]: 28: Hoare triple {2808#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-14 16:19:27,465 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 16:19:27,466 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 16:19:27,467 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 16:19:27,467 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 16:19:27,468 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 16:19:27,468 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 16:19:27,469 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 16:19:27,469 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 16:19:27,470 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 16:19:27,471 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 16:19:27,472 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 16:19:27,473 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 16:19:27,474 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 16:19:27,474 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 16:19:27,475 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 16:19:27,476 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 16:19:27,477 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 16:19:27,478 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 16:19:27,479 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 16:19:27,479 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 16:19:27,480 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 16:19:27,481 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 16:19:27,482 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 16:19:27,483 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 16:19:27,484 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 16:19:27,484 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 16:19:27,485 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 16:19:27,486 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 16:19:27,490 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 16:19:27,509 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:27,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2019-02-14 16:19:27,510 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:27,510 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-14 16:19:27,510 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:27,510 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2019-02-14 16:19:27,577 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 16:19:27,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-02-14 16:19:27,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-02-14 16:19:27,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-14 16:19:27,579 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 33 states. [2019-02-14 16:19:29,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:29,040 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-02-14 16:19:29,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-02-14 16:19:29,041 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-14 16:19:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-14 16:19:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-14 16:19:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-14 16:19:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-14 16:19:29,043 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 34 transitions. [2019-02-14 16:19:29,076 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 16:19:29,077 INFO L225 Difference]: With dead ends: 34 [2019-02-14 16:19:29,077 INFO L226 Difference]: Without dead ends: 33 [2019-02-14 16:19:29,079 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-14 16:19:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-02-14 16:19:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-02-14 16:19:29,111 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:29,111 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2019-02-14 16:19:29,111 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2019-02-14 16:19:29,111 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2019-02-14 16:19:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:29,112 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-14 16:19:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-14 16:19:29,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:29,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:29,113 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2019-02-14 16:19:29,113 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2019-02-14 16:19:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:29,114 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-14 16:19:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-14 16:19:29,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:29,115 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:29,115 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:29,115 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:29,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-02-14 16:19:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-02-14 16:19:29,116 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2019-02-14 16:19:29,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:29,116 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-02-14 16:19:29,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-02-14 16:19:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-02-14 16:19:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-02-14 16:19:29,116 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:29,116 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2019-02-14 16:19:29,117 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2019-02-14 16:19:29,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:29,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:29,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:29,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:29,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:29,531 WARN L181 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:19:30,041 WARN L181 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:19:30,853 WARN L181 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2019-02-14 16:19:30,856 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 16:19:30,874 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 16:19:30,878 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 16:19:30,879 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 16:19:30,879 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 16:19:30,880 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 16:19:30,880 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 16:19:30,881 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 16:19:30,882 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 16:19:30,883 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 16:19:30,884 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 16:19:30,885 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 16:19:30,885 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 16:19:30,887 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 16:19:30,887 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 16:19:30,888 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 16:19:30,889 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 16:19:30,891 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 16:19:30,891 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 16:19:30,893 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 16:19:30,894 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 16:19:30,895 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 16:19:30,896 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 16:19:30,897 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 16:19:30,898 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 16:19:30,899 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 16:19:30,900 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 16:19:30,901 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 16:19:30,902 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 16:19:30,903 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 16:19:30,904 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 16:19:30,912 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 16:19:30,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:30,913 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:30,913 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:30,913 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:30,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:30,913 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 16:19:30,932 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:19:30,933 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:19:30,965 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-02-14 16:19:30,965 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:30,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:30,993 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 16:19:30,995 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:31,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:31,005 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:31,007 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:31,007 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 16:19:31,007 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:31,542 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 16:19:31,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:31,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:31,550 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:31,552 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:31,553 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 16:19:31,553 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (<= main_i 60) (not (= 56 .cse0)))) [2019-02-14 16:19:31,573 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 16:19:31,574 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 16:19:31,574 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 16:19:31,574 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 16:19:31,575 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 16:19:31,575 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 16:19:31,576 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 16:19:31,577 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 16:19:31,578 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 16:19:31,578 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 16:19:31,579 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 16:19:31,580 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 16:19:31,581 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 16:19:31,581 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 16:19:31,582 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 16:19:31,583 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 16:19:31,584 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 16:19:31,584 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 16:19:31,585 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 16:19:31,586 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 16:19:31,587 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 16:19:31,587 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 16:19:31,588 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 16:19:31,589 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 16:19:31,590 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 16:19:31,590 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 16:19:31,591 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 16:19:31,592 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 16:19:31,593 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 16:19:31,594 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 16:19:31,595 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 16:19:31,598 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 16:19:31,599 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:32,957 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-14 16:19:33,114 INFO L273 TraceCheckUtils]: 30: Hoare triple {3198#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-14 16:19:33,116 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 16:19:33,117 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 16:19:33,118 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 16:19:33,119 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 16:19:33,120 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 16:19:33,120 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 16:19:33,121 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 16:19:33,122 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 16:19:33,123 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 16:19:33,124 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 16:19:33,125 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 16:19:33,126 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 16:19:33,127 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 16:19:33,127 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 16:19:33,129 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 16:19:33,129 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 16:19:33,130 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 16:19:33,131 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 16:19:33,132 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 16:19:33,133 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 16:19:33,134 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 16:19:33,134 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 16:19:33,136 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 16:19:33,154 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 16:19:33,169 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 16:19:33,178 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 16:19:33,192 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 16:19:33,201 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 16:19:33,215 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 16:19:33,224 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 16:19:33,233 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 16:19:33,277 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:33,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2019-02-14 16:19:33,278 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:33,278 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-14 16:19:33,278 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:33,279 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-02-14 16:19:33,534 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 16:19:33,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-02-14 16:19:33,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-02-14 16:19:33,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-14 16:19:33,535 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 35 states. [2019-02-14 16:19:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:34,802 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-02-14 16:19:34,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-02-14 16:19:34,802 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-14 16:19:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-14 16:19:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-14 16:19:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-14 16:19:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-14 16:19:34,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 36 transitions. [2019-02-14 16:19:34,845 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 16:19:34,846 INFO L225 Difference]: With dead ends: 36 [2019-02-14 16:19:34,846 INFO L226 Difference]: Without dead ends: 35 [2019-02-14 16:19:34,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-14 16:19:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-02-14 16:19:34,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-02-14 16:19:34,881 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:34,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 34 states. [2019-02-14 16:19:34,881 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 34 states. [2019-02-14 16:19:34,882 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 34 states. [2019-02-14 16:19:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:34,883 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-14 16:19:34,883 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-14 16:19:34,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:34,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:34,883 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 35 states. [2019-02-14 16:19:34,884 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 35 states. [2019-02-14 16:19:34,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:34,884 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-14 16:19:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-14 16:19:34,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:34,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:34,885 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:34,885 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-02-14 16:19:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-02-14 16:19:34,886 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2019-02-14 16:19:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:34,886 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-02-14 16:19:34,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-02-14 16:19:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-02-14 16:19:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-02-14 16:19:34,886 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:34,886 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2019-02-14 16:19:34,887 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:34,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:34,887 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2019-02-14 16:19:34,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:34,888 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:34,888 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:35,673 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 16:19:35,675 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 16:19:35,676 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 16:19:35,677 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 16:19:35,678 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 16:19:35,679 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 16:19:35,680 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 16:19:35,681 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 16:19:35,681 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 16:19:35,683 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 16:19:35,683 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 16:19:35,685 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 16:19:35,685 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 16:19:35,687 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 16:19:35,687 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 16:19:35,688 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 16:19:35,689 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 16:19:35,690 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 16:19:35,691 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 16:19:35,713 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 16:19:35,729 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 16:19:35,743 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 16:19:35,758 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 16:19:35,760 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 16:19:35,761 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 16:19:35,765 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 16:19:35,765 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 16:19:35,766 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 16:19:35,766 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 16:19:35,767 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 16:19:35,768 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 16:19:35,779 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 16:19:35,793 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 16:19:35,799 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 16:19:35,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:35,800 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:35,800 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:35,800 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:35,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:35,800 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 16:19:35,811 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:35,811 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:35,823 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:35,823 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:35,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:35,849 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 16:19:35,854 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:35,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:35,862 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:35,864 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:35,864 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 16:19:35,864 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:36,481 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 16:19:36,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:36,489 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:36,489 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:36,491 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:36,492 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 16:19:36,492 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 60 .cse0)) (<= main_i 64) (<= 60 .cse0))) [2019-02-14 16:19:36,514 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 16:19:36,515 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 16:19:36,515 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 16:19:36,516 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 16:19:36,517 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 16:19:36,517 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 16:19:36,518 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 16:19:36,519 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 16:19:36,520 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 16:19:36,520 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 16:19:36,521 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 16:19:36,522 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 16:19:36,523 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 16:19:36,523 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 16:19:36,524 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 16:19:36,525 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 16:19:36,526 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 16:19:36,526 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 16:19:36,527 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 16:19:36,528 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 16:19:36,528 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 16:19:36,529 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 16:19:36,530 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 16:19:36,531 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 16:19:36,531 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 16:19:36,532 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 16:19:36,533 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 16:19:36,534 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 16:19:36,534 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 16:19:36,535 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 16:19:36,536 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 16:19:36,537 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 16:19:36,538 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 16:19:36,542 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 16:19:36,542 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:37,461 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-14 16:19:38,711 INFO L273 TraceCheckUtils]: 32: Hoare triple {3613#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-14 16:19:38,711 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 16:19:38,713 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 16:19:38,713 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 16:19:38,715 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 16:19:38,716 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 16:19:38,717 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 16:19:38,718 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 16:19:38,719 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 16:19:38,720 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 16:19:38,721 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 16:19:38,722 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 16:19:38,723 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 16:19:38,724 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 16:19:38,725 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 16:19:38,726 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 16:19:38,728 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 16:19:38,729 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 16:19:38,730 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 16:19:38,731 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 16:19:38,732 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 16:19:38,733 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 16:19:38,734 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 16:19:38,735 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 16:19:38,736 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 16:19:38,737 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 16:19:38,738 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 16:19:38,739 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 16:19:38,740 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 16:19:38,741 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 16:19:38,742 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 16:19:38,744 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 16:19:38,745 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 16:19:38,749 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 16:19:38,769 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:38,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 53 [2019-02-14 16:19:38,770 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:38,770 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-14 16:19:38,770 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:38,770 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2019-02-14 16:19:38,874 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 16:19:38,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-02-14 16:19:38,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-02-14 16:19:38,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-14 16:19:38,875 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 37 states. [2019-02-14 16:19:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:40,771 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-02-14 16:19:40,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-02-14 16:19:40,771 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-14 16:19:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:40,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-14 16:19:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-14 16:19:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-14 16:19:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-14 16:19:40,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 38 transitions. [2019-02-14 16:19:40,813 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 16:19:40,814 INFO L225 Difference]: With dead ends: 38 [2019-02-14 16:19:40,814 INFO L226 Difference]: Without dead ends: 37 [2019-02-14 16:19:40,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-14 16:19:40,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-02-14 16:19:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-02-14 16:19:40,847 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:40,847 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 36 states. [2019-02-14 16:19:40,847 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 36 states. [2019-02-14 16:19:40,848 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 36 states. [2019-02-14 16:19:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:40,849 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-14 16:19:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-14 16:19:40,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:40,849 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:40,849 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 37 states. [2019-02-14 16:19:40,849 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 37 states. [2019-02-14 16:19:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:40,850 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-14 16:19:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-14 16:19:40,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:40,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:40,851 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:40,851 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-02-14 16:19:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-02-14 16:19:40,851 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2019-02-14 16:19:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:40,851 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-02-14 16:19:40,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-02-14 16:19:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-02-14 16:19:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-02-14 16:19:40,852 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:40,852 INFO L402 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2019-02-14 16:19:40,852 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:40,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:40,852 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2019-02-14 16:19:40,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:40,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:40,853 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:40,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:40,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:41,252 WARN L181 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:19:41,712 WARN L181 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-14 16:19:42,518 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 16:19:42,519 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 16:19:42,520 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 16:19:42,521 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 16:19:42,522 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 16:19:42,523 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 16:19:42,523 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 16:19:42,524 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 16:19:42,524 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 16:19:42,525 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 16:19:42,526 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 16:19:42,527 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 16:19:42,528 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 16:19:42,529 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 16:19:42,531 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 16:19:42,532 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 16:19:42,533 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 16:19:42,534 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 16:19:42,534 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 16:19:42,535 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 16:19:42,535 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 16:19:42,537 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 16:19:42,537 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 16:19:42,538 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 16:19:42,539 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 16:19:42,540 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 16:19:42,541 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 16:19:42,542 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 16:19:42,543 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 16:19:42,544 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 16:19:42,545 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 16:19:42,546 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 16:19:42,547 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 16:19:42,548 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 16:19:42,548 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 16:19:42,555 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 16:19:42,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:42,556 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:42,556 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:42,556 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:42,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:42,556 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 16:19:42,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:42,566 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:19:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:42,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:42,589 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 16:19:42,593 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:42,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:42,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:42,599 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:42,599 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 16:19:42,599 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:43,279 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 16:19:43,281 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:43,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:43,287 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:43,290 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:43,290 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 16:19:43,290 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 64 .cse0)) (<= 64 .cse0) (<= main_i 68))) [2019-02-14 16:19:43,313 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 16:19:43,313 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 16:19:43,314 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 16:19:43,314 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 16:19:43,315 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 16:19:43,315 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 16:19:43,316 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 16:19:43,317 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 16:19:43,318 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 16:19:43,318 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 16:19:43,319 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 16:19:43,320 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 16:19:43,320 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 16:19:43,321 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 16:19:43,322 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 16:19:43,323 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 16:19:43,323 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 16:19:43,324 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 16:19:43,325 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 16:19:43,326 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 16:19:43,326 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 16:19:43,327 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 16:19:43,328 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 16:19:43,328 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 16:19:43,329 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 16:19:43,330 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 16:19:43,331 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 16:19:43,331 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 16:19:43,332 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 16:19:43,333 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 16:19:43,334 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 16:19:43,334 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 16:19:43,335 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 16:19:43,336 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 16:19:43,337 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 16:19:43,342 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 16:19:43,342 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:44,642 INFO L273 TraceCheckUtils]: 34: Hoare triple {4053#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-14 16:19:44,643 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 16:19:44,644 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 16:19:44,645 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 16:19:44,645 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 16:19:44,646 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 16:19:44,647 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 16:19:44,648 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 16:19:44,649 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 16:19:44,650 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 16:19:44,650 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 16:19:44,651 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 16:19:44,652 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 16:19:44,653 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 16:19:44,654 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 16:19:44,655 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 16:19:44,655 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 16:19:44,656 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 16:19:44,657 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 16:19:44,658 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 16:19:44,658 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 16:19:44,659 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 16:19:44,660 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 16:19:44,661 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 16:19:44,662 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 16:19:44,663 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 16:19:44,663 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 16:19:44,664 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 16:19:44,665 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 16:19:44,666 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 16:19:44,666 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 16:19:44,668 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 16:19:44,668 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 16:19:44,669 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 16:19:44,670 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 16:19:44,675 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 16:19:44,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:44,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 56 [2019-02-14 16:19:44,694 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:44,694 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-14 16:19:44,694 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:44,694 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2019-02-14 16:19:44,775 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 16:19:44,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-02-14 16:19:44,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-02-14 16:19:44,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-14 16:19:44,777 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 39 states. [2019-02-14 16:19:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:46,707 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-02-14 16:19:46,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-02-14 16:19:46,708 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-14 16:19:46,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-14 16:19:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-14 16:19:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-14 16:19:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-14 16:19:46,710 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 40 transitions. [2019-02-14 16:19:46,757 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 16:19:46,758 INFO L225 Difference]: With dead ends: 40 [2019-02-14 16:19:46,758 INFO L226 Difference]: Without dead ends: 39 [2019-02-14 16:19:46,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-14 16:19:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-02-14 16:19:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2019-02-14 16:19:46,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:46,809 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2019-02-14 16:19:46,809 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2019-02-14 16:19:46,809 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2019-02-14 16:19:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:46,810 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-14 16:19:46,811 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-14 16:19:46,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:46,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:46,811 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2019-02-14 16:19:46,812 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2019-02-14 16:19:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:46,812 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-14 16:19:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-14 16:19:46,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:46,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:46,813 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:46,813 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-02-14 16:19:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-02-14 16:19:46,814 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2019-02-14 16:19:46,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:46,814 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-02-14 16:19:46,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-02-14 16:19:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-02-14 16:19:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-02-14 16:19:46,815 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:46,815 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2019-02-14 16:19:46,815 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:46,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:46,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2019-02-14 16:19:46,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:46,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:46,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:19:46,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:46,817 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:47,284 WARN L181 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:19:47,803 WARN L181 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:19:48,747 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 16:19:48,749 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 16:19:48,749 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 16:19:48,750 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 16:19:48,751 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 16:19:48,752 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 16:19:48,753 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 16:19:48,754 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 16:19:48,755 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 16:19:48,756 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 16:19:48,757 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 16:19:48,758 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 16:19:48,758 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 16:19:48,760 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 16:19:48,760 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 16:19:48,761 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 16:19:48,762 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 16:19:48,763 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 16:19:48,764 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 16:19:48,765 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 16:19:48,766 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 16:19:48,767 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 16:19:48,768 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 16:19:48,769 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 16:19:48,772 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 16:19:48,773 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 16:19:48,777 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 16:19:48,780 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 16:19:48,781 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 16:19:48,782 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 16:19:48,783 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 16:19:48,784 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 16:19:48,785 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 16:19:48,786 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 16:19:48,787 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 16:19:48,788 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 16:19:48,789 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 16:19:48,796 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 16:19:48,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:48,797 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:48,797 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:48,797 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:48,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:48,797 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 16:19:48,805 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:19:48,805 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:19:48,849 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-02-14 16:19:48,849 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:48,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:48,883 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 16:19:48,890 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:48,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:48,900 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:48,902 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:48,902 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 16:19:48,902 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:49,801 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 16:19:49,806 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:49,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:49,810 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:49,813 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:49,813 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 16:19:49,813 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 68 .cse0)) (<= main_i 72) (<= 68 .cse0))) [2019-02-14 16:19:49,838 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 16:19:49,839 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 16:19:49,839 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 16:19:49,839 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 16:19:49,840 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 16:19:49,841 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 16:19:49,841 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 16:19:49,843 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 16:19:49,843 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 16:19:49,844 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 16:19:49,845 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 16:19:49,846 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 16:19:49,846 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 16:19:49,847 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 16:19:49,848 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 16:19:49,848 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 16:19:49,849 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 16:19:49,850 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 16:19:49,850 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 16:19:49,851 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 16:19:49,852 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 16:19:49,853 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 16:19:49,853 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 16:19:49,854 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 16:19:49,855 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 16:19:49,855 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 16:19:49,856 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 16:19:49,857 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 16:19:49,857 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 16:19:49,858 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 16:19:49,859 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 16:19:49,859 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 16:19:49,860 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 16:19:49,861 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 16:19:49,862 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 16:19:49,862 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 16:19:49,863 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 16:19:49,868 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 16:19:49,868 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:51,059 INFO L273 TraceCheckUtils]: 36: Hoare triple {4518#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-14 16:19:51,060 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 16:19:51,061 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 16:19:51,062 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 16:19:51,063 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 16:19:51,064 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 16:19:51,064 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 16:19:51,065 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 16:19:51,066 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 16:19:51,067 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 16:19:51,068 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 16:19:51,069 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 16:19:51,069 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 16:19:51,070 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 16:19:51,071 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 16:19:51,072 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 16:19:51,073 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 16:19:51,074 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 16:19:51,074 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 16:19:51,075 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 16:19:51,076 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 16:19:51,077 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 16:19:51,078 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 16:19:51,079 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 16:19:51,079 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 16:19:51,080 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 16:19:51,081 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 16:19:51,082 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 16:19:51,083 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 16:19:51,084 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 16:19:51,084 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 16:19:51,085 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 16:19:51,086 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 16:19:51,087 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 16:19:51,087 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 16:19:51,088 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 16:19:51,089 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 16:19:51,095 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 16:19:51,113 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:51,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 59 [2019-02-14 16:19:51,114 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:51,114 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-14 16:19:51,114 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:51,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2019-02-14 16:19:51,234 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 16:19:51,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-02-14 16:19:51,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-02-14 16:19:51,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-14 16:19:51,236 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 41 states. [2019-02-14 16:19:53,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:53,531 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-02-14 16:19:53,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-02-14 16:19:53,531 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-14 16:19:53,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:19:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-14 16:19:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-14 16:19:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-14 16:19:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-14 16:19:53,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 42 transitions. [2019-02-14 16:19:53,576 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 16:19:53,576 INFO L225 Difference]: With dead ends: 42 [2019-02-14 16:19:53,577 INFO L226 Difference]: Without dead ends: 41 [2019-02-14 16:19:53,578 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-14 16:19:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-02-14 16:19:53,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-02-14 16:19:53,685 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:19:53,685 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 40 states. [2019-02-14 16:19:53,685 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 40 states. [2019-02-14 16:19:53,685 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 40 states. [2019-02-14 16:19:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:53,687 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-14 16:19:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-14 16:19:53,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:53,687 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:53,687 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 41 states. [2019-02-14 16:19:53,688 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 41 states. [2019-02-14 16:19:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:19:53,688 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-14 16:19:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-14 16:19:53,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:19:53,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:19:53,689 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:19:53,689 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:19:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-02-14 16:19:53,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-02-14 16:19:53,690 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2019-02-14 16:19:53,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:19:53,691 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-02-14 16:19:53,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-02-14 16:19:53,691 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-02-14 16:19:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-02-14 16:19:53,691 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:19:53,691 INFO L402 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2019-02-14 16:19:53,692 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:19:53,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:19:53,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2019-02-14 16:19:53,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:19:53,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:53,693 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:19:53,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:19:53,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:19:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:54,051 WARN L181 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:19:54,832 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 16:19:54,833 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 16:19:54,834 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 16:19:54,835 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 16:19:54,835 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 16:19:54,837 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 16:19:54,837 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 16:19:54,838 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 16:19:54,839 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 16:19:54,840 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 16:19:54,841 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 16:19:54,842 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 16:19:54,843 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 16:19:54,844 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 16:19:54,845 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 16:19:54,846 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 16:19:54,847 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 16:19:54,848 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 16:19:54,849 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 16:19:54,850 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 16:19:54,850 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 16:19:54,851 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 16:19:54,852 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 16:19:54,853 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 16:19:54,854 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 16:19:54,855 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 16:19:54,856 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 16:19:54,857 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 16:19:54,858 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 16:19:54,859 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 16:19:54,860 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 16:19:54,861 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 16:19:54,862 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 16:19:54,863 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 16:19:54,863 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 16:19:54,865 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 16:19:54,866 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 16:19:54,867 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 16:19:54,867 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 16:19:54,875 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 16:19:54,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:54,876 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:19:54,876 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:19:54,876 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:19:54,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:19:54,876 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 16:19:54,884 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:19:54,884 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:19:54,895 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:19:54,895 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:19:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:19:54,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:19:54,919 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 16:19:54,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:54,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:54,928 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:19:54,930 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:54,931 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 16:19:54,931 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:19:55,696 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 16:19:55,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:19:55,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:19:55,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:19:55,707 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:19:55,707 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 16:19:55,707 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 76) (<= 72 .cse0) (not (= 72 .cse0)))) [2019-02-14 16:19:55,735 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 16:19:55,735 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 16:19:55,736 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 16:19:55,736 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 16:19:55,737 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 16:19:55,737 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 16:19:55,738 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 16:19:55,739 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 16:19:55,739 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 16:19:55,740 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 16:19:55,741 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 16:19:55,742 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 16:19:55,742 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 16:19:55,743 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 16:19:55,744 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 16:19:55,744 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 16:19:55,745 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 16:19:55,746 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 16:19:55,746 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 16:19:55,747 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 16:19:55,748 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 16:19:55,748 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 16:19:55,749 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 16:19:55,750 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 16:19:55,751 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 16:19:55,751 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 16:19:55,752 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 16:19:55,753 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 16:19:55,754 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 16:19:55,754 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 16:19:55,755 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 16:19:55,756 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 16:19:55,756 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 16:19:55,757 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 16:19:55,758 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 16:19:55,758 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 16:19:55,759 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 16:19:55,760 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 16:19:55,761 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 16:19:55,766 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 16:19:55,766 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:19:57,056 INFO L273 TraceCheckUtils]: 38: Hoare triple {5008#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-14 16:19:57,057 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 16:19:57,058 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 16:19:57,059 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 16:19:57,060 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 16:19:57,061 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 16:19:57,061 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 16:19:57,062 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 16:19:57,063 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 16:19:57,064 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 16:19:57,064 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 16:19:57,065 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 16:19:57,066 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 16:19:57,067 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 16:19:57,068 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 16:19:57,069 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 16:19:57,086 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 16:19:57,087 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 16:19:57,087 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 16:19:57,088 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 16:19:57,088 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 16:19:57,089 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 16:19:57,089 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 16:19:57,090 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 16:19:57,091 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 16:19:57,092 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 16:19:57,092 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 16:19:57,093 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 16:19:57,094 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 16:19:57,095 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 16:19:57,095 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 16:19:57,097 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 16:19:57,097 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 16:19:57,098 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 16:19:57,099 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 16:19:57,100 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 16:19:57,100 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 16:19:57,101 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 16:19:57,102 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 16:19:57,109 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 16:19:57,127 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:19:57,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 62 [2019-02-14 16:19:57,127 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:19:57,128 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-14 16:19:57,128 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:19:57,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states. [2019-02-14 16:19:57,218 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 16:19:57,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-02-14 16:19:57,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-02-14 16:19:57,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-14 16:19:57,221 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 43 states. [2019-02-14 16:20:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:00,098 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-02-14 16:20:00,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-02-14 16:20:00,099 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-14 16:20:00,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-14 16:20:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-14 16:20:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-14 16:20:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-14 16:20:00,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 44 transitions. [2019-02-14 16:20:00,154 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 16:20:00,155 INFO L225 Difference]: With dead ends: 44 [2019-02-14 16:20:00,156 INFO L226 Difference]: Without dead ends: 43 [2019-02-14 16:20:00,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-14 16:20:00,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-02-14 16:20:00,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-02-14 16:20:00,210 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:00,210 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 42 states. [2019-02-14 16:20:00,211 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 42 states. [2019-02-14 16:20:00,211 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 42 states. [2019-02-14 16:20:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:00,212 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-14 16:20:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-14 16:20:00,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:00,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:00,213 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 43 states. [2019-02-14 16:20:00,213 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 43 states. [2019-02-14 16:20:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:00,214 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-14 16:20:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-14 16:20:00,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:00,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:00,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:00,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-02-14 16:20:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-02-14 16:20:00,216 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2019-02-14 16:20:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:00,216 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-02-14 16:20:00,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-02-14 16:20:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-02-14 16:20:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-02-14 16:20:00,217 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:00,217 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2019-02-14 16:20:00,217 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:00,217 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2019-02-14 16:20:00,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:00,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:00,218 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:20:00,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:00,219 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:01,239 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 16:20:01,240 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 16:20:01,241 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 16:20:01,242 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 16:20:01,243 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 16:20:01,244 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 16:20:01,244 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 16:20:01,245 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 16:20:01,246 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 16:20:01,247 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 16:20:01,248 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 16:20:01,249 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 16:20:01,250 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 16:20:01,251 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 16:20:01,252 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 16:20:01,253 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 16:20:01,253 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 16:20:01,254 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 16:20:01,255 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 16:20:01,256 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 16:20:01,257 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 16:20:01,258 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 16:20:01,259 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 16:20:01,260 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 16:20:01,261 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 16:20:01,262 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 16:20:01,262 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 16:20:01,263 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 16:20:01,264 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 16:20:01,265 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 16:20:01,266 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 16:20:01,267 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 16:20:01,268 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 16:20:01,269 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 16:20:01,270 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 16:20:01,271 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 16:20:01,271 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 16:20:01,273 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 16:20:01,274 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 16:20:01,275 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 16:20:01,275 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 16:20:01,284 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 16:20:01,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:01,284 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:01,284 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:01,284 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:01,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:01,284 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 16:20:01,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:20:01,295 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:20:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:01,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:01,333 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 16:20:01,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:01,345 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:01,345 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:01,347 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:01,347 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 16:20:01,347 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:02,417 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 16:20:02,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:02,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:02,428 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:02,430 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:02,431 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 16:20:02,431 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= 76 .cse0)) (<= main_i 80))) [2019-02-14 16:20:02,460 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 16:20:02,461 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 16:20:02,461 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 16:20:02,463 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 16:20:02,463 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 16:20:02,464 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 16:20:02,465 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 16:20:02,465 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 16:20:02,466 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 16:20:02,466 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 16:20:02,467 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 16:20:02,467 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 16:20:02,468 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 16:20:02,469 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 16:20:02,469 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 16:20:02,471 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 16:20:02,471 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 16:20:02,472 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 16:20:02,473 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 16:20:02,474 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 16:20:02,474 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 16:20:02,475 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 16:20:02,476 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 16:20:02,476 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 16:20:02,477 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 16:20:02,478 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 16:20:02,479 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 16:20:02,479 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 16:20:02,480 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 16:20:02,481 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 16:20:02,481 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 16:20:02,482 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 16:20:02,483 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 16:20:02,484 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 16:20:02,484 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 16:20:02,485 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 16:20:02,486 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 16:20:02,486 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 16:20:02,487 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 16:20:02,488 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 16:20:02,489 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 16:20:02,494 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 16:20:02,494 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:03,920 INFO L273 TraceCheckUtils]: 40: Hoare triple {5523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-14 16:20:03,921 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 16:20:03,922 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 16:20:03,923 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 16:20:03,924 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 16:20:03,925 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 16:20:03,925 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 16:20:03,926 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 16:20:03,927 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 16:20:03,928 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 16:20:03,929 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 16:20:03,930 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 16:20:03,930 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 16:20:03,931 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 16:20:03,932 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 16:20:03,933 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 16:20:03,933 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 16:20:03,934 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 16:20:03,935 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 16:20:03,936 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 16:20:03,937 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 16:20:03,938 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 16:20:03,938 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 16:20:03,939 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 16:20:03,940 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 16:20:03,941 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 16:20:03,941 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 16:20:03,943 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 16:20:03,943 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 16:20:03,944 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 16:20:03,945 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 16:20:03,946 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 16:20:03,946 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 16:20:03,947 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 16:20:03,948 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 16:20:03,949 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 16:20:03,950 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 16:20:03,951 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 16:20:03,951 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 16:20:03,952 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 16:20:03,953 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 16:20:03,960 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 16:20:03,979 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:03,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 65 [2019-02-14 16:20:03,979 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:03,980 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-14 16:20:03,980 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:03,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states. [2019-02-14 16:20:04,114 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 16:20:04,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-02-14 16:20:04,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-02-14 16:20:04,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-02-14 16:20:04,116 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 45 states. [2019-02-14 16:20:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:07,639 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-02-14 16:20:07,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-02-14 16:20:07,640 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-14 16:20:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-14 16:20:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-14 16:20:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-14 16:20:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-14 16:20:07,642 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 46 transitions. [2019-02-14 16:20:07,693 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 16:20:07,694 INFO L225 Difference]: With dead ends: 46 [2019-02-14 16:20:07,694 INFO L226 Difference]: Without dead ends: 45 [2019-02-14 16:20:07,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-02-14 16:20:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-02-14 16:20:07,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-02-14 16:20:07,739 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:07,739 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 44 states. [2019-02-14 16:20:07,739 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 44 states. [2019-02-14 16:20:07,739 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 44 states. [2019-02-14 16:20:07,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:07,740 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-14 16:20:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-14 16:20:07,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:07,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:07,741 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 45 states. [2019-02-14 16:20:07,741 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 45 states. [2019-02-14 16:20:07,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:07,742 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-14 16:20:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-14 16:20:07,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:07,742 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:07,742 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:07,743 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-02-14 16:20:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-02-14 16:20:07,743 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2019-02-14 16:20:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:07,743 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-02-14 16:20:07,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-02-14 16:20:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-02-14 16:20:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-02-14 16:20:07,744 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:07,744 INFO L402 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2019-02-14 16:20:07,744 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:07,744 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2019-02-14 16:20:07,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:07,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:07,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:20:07,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:07,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:08,764 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 16:20:08,765 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 16:20:08,766 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 16:20:08,767 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 16:20:08,768 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 16:20:08,769 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 16:20:08,769 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 16:20:08,770 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 16:20:08,771 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 16:20:08,772 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 16:20:08,773 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 16:20:08,774 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 16:20:08,775 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 16:20:08,776 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 16:20:08,777 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 16:20:08,778 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 16:20:08,779 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 16:20:08,780 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 16:20:08,780 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 16:20:08,781 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 16:20:08,782 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 16:20:08,783 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 16:20:08,784 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 16:20:08,785 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 16:20:08,786 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 16:20:08,787 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 16:20:08,788 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 16:20:08,789 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 16:20:08,789 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 16:20:08,809 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 16:20:08,811 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 16:20:08,812 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 16:20:08,813 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 16:20:08,813 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 16:20:08,814 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 16:20:08,815 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 16:20:08,815 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 16:20:08,816 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 16:20:08,817 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 16:20:08,818 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 16:20:08,819 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 16:20:08,820 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 16:20:08,821 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 16:20:08,830 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 16:20:08,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:08,830 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:08,830 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:08,831 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:08,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:08,831 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 16:20:08,839 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:20:08,839 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:20:08,866 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2019-02-14 16:20:08,866 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:20:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:08,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:08,891 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 16:20:08,892 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:08,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:08,897 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:08,900 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:08,900 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 16:20:08,900 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:10,235 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 16:20:10,236 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:10,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:10,241 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:10,244 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:10,244 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 16:20:10,244 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 80 .cse0)) (<= 80 .cse0))) [2019-02-14 16:20:10,272 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 16:20:10,272 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 16:20:10,273 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 16:20:10,273 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 16:20:10,273 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 16:20:10,274 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 16:20:10,275 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 16:20:10,275 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 16:20:10,276 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 16:20:10,277 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 16:20:10,278 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 16:20:10,278 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 16:20:10,279 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 16:20:10,280 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 16:20:10,280 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 16:20:10,281 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 16:20:10,282 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 16:20:10,282 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 16:20:10,283 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 16:20:10,284 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 16:20:10,284 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 16:20:10,285 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 16:20:10,286 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 16:20:10,287 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 16:20:10,287 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 16:20:10,288 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 16:20:10,289 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 16:20:10,289 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 16:20:10,290 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 16:20:10,291 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 16:20:10,291 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 16:20:10,292 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 16:20:10,293 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 16:20:10,293 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 16:20:10,294 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 16:20:10,295 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 16:20:10,296 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 16:20:10,296 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 16:20:10,297 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 16:20:10,298 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 16:20:10,298 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 16:20:10,299 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 16:20:10,300 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 16:20:10,306 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 16:20:10,306 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:11,796 INFO L273 TraceCheckUtils]: 42: Hoare triple {6063#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-14 16:20:11,797 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 16:20:11,798 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 16:20:11,799 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 16:20:11,800 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 16:20:11,801 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 16:20:11,801 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 16:20:11,803 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 16:20:11,804 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 16:20:11,805 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 16:20:11,805 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 16:20:11,806 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 16:20:11,807 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 16:20:11,808 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 16:20:11,809 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 16:20:11,810 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 16:20:11,810 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 16:20:11,811 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 16:20:11,813 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 16:20:11,814 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 16:20:11,814 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 16:20:11,816 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 16:20:11,816 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 16:20:11,817 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 16:20:11,818 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 16:20:11,819 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 16:20:11,819 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 16:20:11,820 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 16:20:11,821 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 16:20:11,822 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 16:20:11,822 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 16:20:11,824 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 16:20:11,824 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 16:20:11,825 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 16:20:11,826 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 16:20:11,827 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 16:20:11,827 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 16:20:11,828 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 16:20:11,829 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 16:20:11,830 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 16:20:11,830 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 16:20:11,832 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 16:20:11,833 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 16:20:11,840 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 16:20:11,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:11,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 68 [2019-02-14 16:20:11,859 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:11,859 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-14 16:20:11,859 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:11,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2019-02-14 16:20:11,956 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 16:20:11,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-02-14 16:20:11,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-02-14 16:20:11,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-02-14 16:20:11,958 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 47 states. [2019-02-14 16:20:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:14,545 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-02-14 16:20:14,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-02-14 16:20:14,545 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-14 16:20:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-14 16:20:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-14 16:20:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-14 16:20:14,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-14 16:20:14,547 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 48 transitions. [2019-02-14 16:20:14,617 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 16:20:14,618 INFO L225 Difference]: With dead ends: 48 [2019-02-14 16:20:14,618 INFO L226 Difference]: Without dead ends: 47 [2019-02-14 16:20:14,619 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 16:20:14,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-02-14 16:20:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-02-14 16:20:14,773 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:14,774 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 46 states. [2019-02-14 16:20:14,774 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 46 states. [2019-02-14 16:20:14,774 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 46 states. [2019-02-14 16:20:14,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:14,775 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-14 16:20:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-14 16:20:14,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:14,776 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:14,776 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 47 states. [2019-02-14 16:20:14,776 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 47 states. [2019-02-14 16:20:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:14,777 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-14 16:20:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-14 16:20:14,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:14,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:14,777 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:14,777 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-02-14 16:20:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-02-14 16:20:14,778 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2019-02-14 16:20:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:14,778 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-02-14 16:20:14,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-02-14 16:20:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-02-14 16:20:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-02-14 16:20:14,779 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:14,779 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2019-02-14 16:20:14,779 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:14,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2019-02-14 16:20:14,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:14,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:14,780 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:20:14,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:14,780 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:15,898 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 16:20:15,899 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 16:20:15,900 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 16:20:15,901 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 16:20:15,902 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 16:20:15,903 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 16:20:15,904 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 16:20:15,905 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 16:20:15,906 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 16:20:15,907 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 16:20:15,907 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 16:20:15,908 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 16:20:15,909 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 16:20:15,910 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 16:20:15,911 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 16:20:15,912 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 16:20:15,913 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 16:20:15,914 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 16:20:15,915 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 16:20:15,916 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 16:20:15,916 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 16:20:15,917 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 16:20:15,918 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 16:20:15,919 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 16:20:15,920 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 16:20:15,921 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 16:20:15,922 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 16:20:15,923 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 16:20:15,924 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 16:20:15,925 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 16:20:15,925 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 16:20:15,927 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 16:20:15,927 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 16:20:15,928 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 16:20:15,929 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 16:20:15,930 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 16:20:15,931 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 16:20:15,932 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 16:20:15,933 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 16:20:15,934 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 16:20:15,935 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 16:20:15,936 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 16:20:15,937 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 16:20:15,938 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 16:20:15,938 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 16:20:15,948 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 16:20:15,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:15,948 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:15,949 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:15,949 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:15,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:15,949 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 16:20:15,957 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:20:15,957 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:20:15,970 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:20:15,970 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:20:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:15,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:15,992 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 16:20:16,007 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:16,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:16,010 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:16,012 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:16,012 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 16:20:16,012 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:17,102 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 16:20:17,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:17,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:17,111 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:17,113 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:17,114 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 16:20:17,114 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 84 .cse0)) (<= 84 .cse0))) [2019-02-14 16:20:17,141 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 16:20:17,142 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 16:20:17,142 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 16:20:17,143 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 16:20:17,143 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 16:20:17,144 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 16:20:17,144 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 16:20:17,145 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 16:20:17,146 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 16:20:17,147 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 16:20:17,147 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 16:20:17,148 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 16:20:17,149 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 16:20:17,149 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 16:20:17,150 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 16:20:17,151 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 16:20:17,151 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 16:20:17,152 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 16:20:17,153 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 16:20:17,153 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 16:20:17,154 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 16:20:17,155 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 16:20:17,156 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 16:20:17,156 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 16:20:17,157 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 16:20:17,170 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 16:20:17,171 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 16:20:17,172 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 16:20:17,172 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 16:20:17,173 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 16:20:17,173 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 16:20:17,173 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 16:20:17,174 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 16:20:17,175 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 16:20:17,175 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 16:20:17,176 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 16:20:17,177 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 16:20:17,177 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 16:20:17,178 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 16:20:17,179 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 16:20:17,179 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 16:20:17,180 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 16:20:17,181 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 16:20:17,182 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 16:20:17,183 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 16:20:17,189 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 16:20:17,189 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:18,817 INFO L273 TraceCheckUtils]: 44: Hoare triple {6628#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-14 16:20:18,818 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 16:20:18,819 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 16:20:18,820 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 16:20:18,821 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 16:20:18,822 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 16:20:18,823 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 16:20:18,824 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 16:20:18,824 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 16:20:18,826 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 16:20:18,826 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 16:20:18,827 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 16:20:18,828 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 16:20:18,829 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 16:20:18,830 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 16:20:18,831 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 16:20:18,831 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 16:20:18,832 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 16:20:18,833 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 16:20:18,834 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 16:20:18,835 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 16:20:18,836 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 16:20:18,836 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 16:20:18,838 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 16:20:18,838 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 16:20:18,839 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 16:20:18,840 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 16:20:18,841 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 16:20:18,842 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 16:20:18,843 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 16:20:18,844 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 16:20:18,845 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 16:20:18,845 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 16:20:18,846 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 16:20:18,847 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 16:20:18,848 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 16:20:18,849 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 16:20:18,850 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 16:20:18,851 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 16:20:18,852 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 16:20:18,852 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 16:20:18,853 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 16:20:18,854 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 16:20:18,855 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 16:20:18,856 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 16:20:18,866 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 16:20:18,884 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:18,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 71 [2019-02-14 16:20:18,885 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:18,885 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-14 16:20:18,885 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:18,885 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states. [2019-02-14 16:20:18,995 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 16:20:18,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-02-14 16:20:18,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-02-14 16:20:18,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-14 16:20:18,997 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 49 states. [2019-02-14 16:20:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:22,894 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-02-14 16:20:22,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-02-14 16:20:22,894 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-14 16:20:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-14 16:20:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-14 16:20:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-14 16:20:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-14 16:20:22,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 50 transitions. [2019-02-14 16:20:22,984 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 16:20:22,985 INFO L225 Difference]: With dead ends: 50 [2019-02-14 16:20:22,985 INFO L226 Difference]: Without dead ends: 49 [2019-02-14 16:20:22,986 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-14 16:20:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-02-14 16:20:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2019-02-14 16:20:23,028 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:23,029 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 48 states. [2019-02-14 16:20:23,029 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 48 states. [2019-02-14 16:20:23,029 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 48 states. [2019-02-14 16:20:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:23,030 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-14 16:20:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-14 16:20:23,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:23,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:23,031 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 49 states. [2019-02-14 16:20:23,031 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 49 states. [2019-02-14 16:20:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:23,031 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-14 16:20:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-14 16:20:23,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:23,032 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:23,032 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:23,032 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-02-14 16:20:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-02-14 16:20:23,033 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2019-02-14 16:20:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:23,033 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-02-14 16:20:23,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-02-14 16:20:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-02-14 16:20:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-02-14 16:20:23,033 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:23,033 INFO L402 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2019-02-14 16:20:23,034 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2019-02-14 16:20:23,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:23,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:23,035 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:20:23,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:23,035 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:23,353 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:20:24,327 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 16:20:24,328 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 16:20:24,329 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 16:20:24,330 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 16:20:24,331 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 16:20:24,332 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 16:20:24,333 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 16:20:24,334 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 16:20:24,334 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 16:20:24,336 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 16:20:24,336 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 16:20:24,337 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 16:20:24,338 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 16:20:24,339 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 16:20:24,340 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 16:20:24,341 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 16:20:24,342 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 16:20:24,343 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 16:20:24,344 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 16:20:24,345 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 16:20:24,346 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 16:20:24,347 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 16:20:24,348 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 16:20:24,349 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 16:20:24,350 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 16:20:24,351 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 16:20:24,351 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 16:20:24,353 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 16:20:24,353 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 16:20:24,354 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 16:20:24,355 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 16:20:24,356 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 16:20:24,357 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 16:20:24,358 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 16:20:24,359 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 16:20:24,360 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 16:20:24,361 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 16:20:24,362 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 16:20:24,362 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 16:20:24,363 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 16:20:24,364 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 16:20:24,365 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 16:20:24,366 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 16:20:24,367 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 16:20:24,368 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 16:20:24,369 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 16:20:24,370 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 16:20:24,382 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 16:20:24,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:24,382 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:24,382 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:24,382 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:24,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:24,382 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 16:20:24,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:20:24,391 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:20:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:24,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:24,430 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 16:20:24,440 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:24,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:24,449 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:24,451 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:24,452 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 16:20:24,452 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:25,685 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 16:20:25,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:25,693 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:25,694 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:25,696 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:25,696 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 16:20:25,696 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= 88 .cse0)) (<= 88 .cse0))) [2019-02-14 16:20:25,727 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 16:20:25,727 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 16:20:25,728 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 16:20:25,728 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 16:20:25,729 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 16:20:25,729 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 16:20:25,730 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 16:20:25,730 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 16:20:25,731 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 16:20:25,732 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 16:20:25,732 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 16:20:25,733 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 16:20:25,734 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 16:20:25,735 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 16:20:25,735 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 16:20:25,736 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 16:20:25,737 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 16:20:25,737 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 16:20:25,738 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 16:20:25,739 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 16:20:25,739 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 16:20:25,740 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 16:20:25,741 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 16:20:25,741 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 16:20:25,742 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 16:20:25,743 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 16:20:25,743 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 16:20:25,744 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 16:20:25,745 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 16:20:25,746 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 16:20:25,746 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 16:20:25,747 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 16:20:25,748 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 16:20:25,748 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 16:20:25,749 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 16:20:25,750 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 16:20:25,750 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 16:20:25,751 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 16:20:25,752 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 16:20:25,752 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 16:20:25,753 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 16:20:25,754 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 16:20:25,754 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 16:20:25,755 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 16:20:25,756 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 16:20:25,757 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 16:20:25,758 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 16:20:25,765 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 16:20:25,765 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:27,536 INFO L273 TraceCheckUtils]: 46: Hoare triple {7218#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-14 16:20:27,537 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 16:20:27,537 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 16:20:27,538 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 16:20:27,538 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 16:20:27,539 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 16:20:27,539 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 16:20:27,540 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 16:20:27,541 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 16:20:27,542 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 16:20:27,542 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 16:20:27,544 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 16:20:27,544 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 16:20:27,545 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 16:20:27,546 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 16:20:27,547 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 16:20:27,547 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 16:20:27,548 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 16:20:27,549 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 16:20:27,550 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 16:20:27,551 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 16:20:27,552 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 16:20:27,552 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 16:20:27,553 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 16:20:27,554 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 16:20:27,555 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 16:20:27,555 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 16:20:27,556 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 16:20:27,557 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 16:20:27,558 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 16:20:27,559 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 16:20:27,560 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 16:20:27,560 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 16:20:27,562 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 16:20:27,562 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 16:20:27,563 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 16:20:27,564 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 16:20:27,565 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 16:20:27,565 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 16:20:27,567 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 16:20:27,567 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 16:20:27,568 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 16:20:27,569 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 16:20:27,570 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 16:20:27,570 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 16:20:27,571 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 16:20:27,572 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 16:20:27,581 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 16:20:27,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:27,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 74 [2019-02-14 16:20:27,600 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:27,600 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-14 16:20:27,601 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:27,601 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states. [2019-02-14 16:20:27,710 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 16:20:27,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-02-14 16:20:27,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-02-14 16:20:27,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-14 16:20:27,712 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 51 states. [2019-02-14 16:20:31,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:31,598 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-02-14 16:20:31,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-02-14 16:20:31,598 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-14 16:20:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-14 16:20:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-14 16:20:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-14 16:20:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-14 16:20:31,600 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 52 transitions. [2019-02-14 16:20:31,653 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 16:20:31,654 INFO L225 Difference]: With dead ends: 52 [2019-02-14 16:20:31,654 INFO L226 Difference]: Without dead ends: 51 [2019-02-14 16:20:31,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-14 16:20:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-02-14 16:20:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2019-02-14 16:20:31,703 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:31,704 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 50 states. [2019-02-14 16:20:31,704 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 50 states. [2019-02-14 16:20:31,704 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 50 states. [2019-02-14 16:20:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:31,705 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-14 16:20:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-14 16:20:31,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:31,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:31,706 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 51 states. [2019-02-14 16:20:31,706 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 51 states. [2019-02-14 16:20:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:31,706 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-14 16:20:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-14 16:20:31,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:31,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:31,707 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:31,707 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-02-14 16:20:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-02-14 16:20:31,707 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2019-02-14 16:20:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:31,708 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-02-14 16:20:31,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-02-14 16:20:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-02-14 16:20:31,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-02-14 16:20:31,708 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:31,708 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2019-02-14 16:20:31,709 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:31,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:31,709 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2019-02-14 16:20:31,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:31,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:31,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:20:31,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:31,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:32,108 WARN L181 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-02-14 16:20:32,560 WARN L181 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-02-14 16:20:33,605 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 16:20:33,607 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 16:20:33,627 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 16:20:33,628 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 16:20:33,629 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 16:20:33,629 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 16:20:33,630 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 16:20:33,630 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 16:20:33,631 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 16:20:33,632 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 16:20:33,633 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 16:20:33,634 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 16:20:33,635 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 16:20:33,636 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 16:20:33,636 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 16:20:33,638 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 16:20:33,638 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 16:20:33,639 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 16:20:33,640 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 16:20:33,641 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 16:20:33,642 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 16:20:33,643 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 16:20:33,644 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 16:20:33,645 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 16:20:33,646 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 16:20:33,647 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 16:20:33,648 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 16:20:33,649 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 16:20:33,650 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 16:20:33,651 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 16:20:33,651 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 16:20:33,652 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 16:20:33,653 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 16:20:33,654 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 16:20:33,655 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 16:20:33,656 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 16:20:33,657 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 16:20:33,658 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 16:20:33,659 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 16:20:33,660 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 16:20:33,660 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 16:20:33,661 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 16:20:33,662 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 16:20:33,663 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 16:20:33,664 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 16:20:33,665 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 16:20:33,666 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 16:20:33,667 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 16:20:33,668 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 16:20:33,680 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 16:20:33,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:33,680 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:33,680 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:33,680 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:33,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:33,680 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 16:20:33,698 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:20:33,698 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:20:33,726 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2019-02-14 16:20:33,726 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:20:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:33,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:33,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-14 16:20:33,758 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:33,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:33,769 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:33,771 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:33,771 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 16:20:33,771 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:34,846 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 16:20:34,854 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:34,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:34,868 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:34,870 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:34,870 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 16:20:34,870 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 92 .cse0)) (<= 92 .cse0))) [2019-02-14 16:20:34,945 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 16:20:34,945 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 16:20:34,947 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 16:20:34,947 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 16:20:34,950 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 16:20:34,950 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 16:20:34,953 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 16:20:34,953 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 16:20:34,956 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 16:20:34,956 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 16:20:34,959 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 16:20:34,959 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 16:20:34,961 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 16:20:34,961 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 16:20:34,963 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 16:20:34,963 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 16:20:34,965 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 16:20:34,967 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 16:20:34,970 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 16:20:34,970 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 16:20:34,972 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 16:20:34,974 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 16:20:34,974 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 16:20:34,976 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 16:20:34,976 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 16:20:34,978 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 16:20:34,980 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 16:20:34,983 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 16:20:34,983 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 16:20:34,986 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 16:20:34,986 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 16:20:34,989 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 16:20:34,989 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 16:20:34,992 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 16:20:34,992 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 16:20:34,994 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 16:20:34,994 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 16:20:34,996 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 16:20:34,996 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 16:20:34,999 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 16:20:35,001 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 16:20:35,001 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 16:20:35,004 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 16:20:35,004 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 16:20:35,006 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 16:20:35,006 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 16:20:35,009 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 16:20:35,009 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 16:20:35,011 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 16:20:35,016 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 16:20:35,016 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:36,964 INFO L273 TraceCheckUtils]: 48: Hoare triple {7833#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-14 16:20:36,965 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 16:20:36,966 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 16:20:36,967 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 16:20:36,967 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 16:20:36,968 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 16:20:36,969 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 16:20:36,970 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 16:20:36,970 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 16:20:36,971 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 16:20:36,972 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 16:20:36,973 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 16:20:36,974 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 16:20:36,975 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 16:20:36,975 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 16:20:36,976 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 16:20:36,977 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 16:20:36,978 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 16:20:36,978 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 16:20:36,979 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 16:20:36,980 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 16:20:36,981 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 16:20:36,982 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 16:20:36,983 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 16:20:36,983 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 16:20:36,984 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 16:20:36,985 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 16:20:36,986 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 16:20:36,986 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 16:20:36,987 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 16:20:36,988 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 16:20:36,989 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 16:20:36,990 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 16:20:36,991 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 16:20:36,991 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 16:20:36,992 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 16:20:36,993 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 16:20:36,994 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 16:20:36,994 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 16:20:36,995 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 16:20:36,996 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 16:20:36,997 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 16:20:36,998 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 16:20:36,999 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 16:20:36,999 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 16:20:37,000 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 16:20:37,001 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 16:20:37,002 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 16:20:37,003 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 16:20:37,013 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 16:20:37,032 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:37,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 77 [2019-02-14 16:20:37,033 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:37,033 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-14 16:20:37,034 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:37,034 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2019-02-14 16:20:37,145 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 16:20:37,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-02-14 16:20:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-02-14 16:20:37,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-14 16:20:37,147 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 53 states. [2019-02-14 16:20:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:41,650 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-02-14 16:20:41,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-02-14 16:20:41,650 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-14 16:20:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-14 16:20:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-14 16:20:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-14 16:20:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-14 16:20:41,653 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 54 transitions. [2019-02-14 16:20:41,717 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 16:20:41,718 INFO L225 Difference]: With dead ends: 54 [2019-02-14 16:20:41,718 INFO L226 Difference]: Without dead ends: 53 [2019-02-14 16:20:41,719 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-14 16:20:41,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-02-14 16:20:41,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2019-02-14 16:20:41,791 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:41,791 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 52 states. [2019-02-14 16:20:41,792 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 52 states. [2019-02-14 16:20:41,792 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 52 states. [2019-02-14 16:20:41,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:41,793 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-14 16:20:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-14 16:20:41,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:41,793 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:41,794 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 53 states. [2019-02-14 16:20:41,794 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 53 states. [2019-02-14 16:20:41,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:41,794 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-14 16:20:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-14 16:20:41,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:41,795 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:41,795 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:41,795 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-02-14 16:20:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-02-14 16:20:41,796 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2019-02-14 16:20:41,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:41,796 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-02-14 16:20:41,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-02-14 16:20:41,796 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-02-14 16:20:41,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-02-14 16:20:41,797 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:41,797 INFO L402 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2019-02-14 16:20:41,797 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:41,797 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2019-02-14 16:20:41,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:41,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:41,798 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:20:41,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:41,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:43,450 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 16:20:43,451 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 16:20:43,452 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 16:20:43,453 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 16:20:43,453 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 16:20:43,454 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 16:20:43,455 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 16:20:43,456 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 16:20:43,457 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 16:20:43,458 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 16:20:43,459 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 16:20:43,460 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 16:20:43,461 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 16:20:43,462 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 16:20:43,462 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 16:20:43,464 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 16:20:43,464 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 16:20:43,465 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 16:20:43,466 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 16:20:43,467 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 16:20:43,468 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 16:20:43,469 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 16:20:43,470 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 16:20:43,471 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 16:20:43,472 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 16:20:43,473 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 16:20:43,474 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 16:20:43,475 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 16:20:43,475 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 16:20:43,476 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 16:20:43,477 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 16:20:43,478 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 16:20:43,479 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 16:20:43,480 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 16:20:43,481 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 16:20:43,482 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 16:20:43,483 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 16:20:43,484 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 16:20:43,484 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 16:20:43,486 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 16:20:43,486 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 16:20:43,487 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 16:20:43,488 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 16:20:43,489 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 16:20:43,490 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 16:20:43,491 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 16:20:43,492 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 16:20:43,493 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 16:20:43,494 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 16:20:43,495 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 16:20:43,496 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 16:20:43,508 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 16:20:43,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:43,509 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:43,509 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:43,509 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:43,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:43,509 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 16:20:43,519 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:20:43,519 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:20:43,534 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:20:43,534 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:20:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:43,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:43,566 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-14 16:20:43,569 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:43,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:43,576 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:43,578 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:43,579 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 16:20:43,579 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:44,792 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 16:20:44,794 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:44,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:44,799 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:44,801 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:44,802 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 16:20:44,802 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (not (= 96 .cse0)) (<= main_i 100))) [2019-02-14 16:20:44,856 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 16:20:44,857 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 16:20:44,858 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 16:20:44,858 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 16:20:44,859 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 16:20:44,860 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 16:20:44,867 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 16:20:44,868 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 16:20:44,869 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 16:20:44,869 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 16:20:44,869 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 16:20:44,870 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 16:20:44,870 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 16:20:44,871 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 16:20:44,871 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 16:20:44,872 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 16:20:44,873 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 16:20:44,873 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 16:20:44,874 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 16:20:44,875 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 16:20:44,875 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 16:20:44,876 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 16:20:44,877 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 16:20:44,878 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 16:20:44,878 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 16:20:44,879 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 16:20:44,880 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 16:20:44,880 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 16:20:44,881 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 16:20:44,882 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 16:20:44,882 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 16:20:44,883 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 16:20:44,884 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 16:20:44,884 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 16:20:44,885 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 16:20:44,886 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 16:20:44,886 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 16:20:44,887 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 16:20:44,888 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 16:20:44,889 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 16:20:44,889 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 16:20:44,890 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 16:20:44,891 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 16:20:44,892 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 16:20:44,892 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 16:20:44,893 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 16:20:44,894 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 16:20:44,894 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 16:20:44,895 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 16:20:44,896 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 16:20:44,897 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 16:20:44,903 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 16:20:44,903 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:47,290 INFO L273 TraceCheckUtils]: 50: Hoare triple {8473#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-14 16:20:47,291 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 16:20:47,292 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 16:20:47,293 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 16:20:47,293 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 16:20:47,294 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 16:20:47,295 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 16:20:47,296 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 16:20:47,296 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 16:20:47,298 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 16:20:47,298 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 16:20:47,299 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 16:20:47,300 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 16:20:47,301 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 16:20:47,302 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 16:20:47,303 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 16:20:47,303 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 16:20:47,304 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 16:20:47,305 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 16:20:47,306 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 16:20:47,306 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 16:20:47,308 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 16:20:47,308 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 16:20:47,309 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 16:20:47,310 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 16:20:47,311 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 16:20:47,312 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 16:20:47,313 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 16:20:47,313 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 16:20:47,314 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 16:20:47,315 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 16:20:47,316 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 16:20:47,317 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 16:20:47,318 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 16:20:47,318 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 16:20:47,319 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 16:20:47,320 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 16:20:47,321 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 16:20:47,321 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 16:20:47,322 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 16:20:47,323 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 16:20:47,324 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 16:20:47,325 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 16:20:47,326 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 16:20:47,326 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 16:20:47,327 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 16:20:47,328 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 16:20:47,329 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 16:20:47,329 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 16:20:47,330 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 16:20:47,331 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 16:20:47,342 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 16:20:47,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:47,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 80 [2019-02-14 16:20:47,361 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:47,362 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-14 16:20:47,362 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:47,362 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states. [2019-02-14 16:20:47,548 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 16:20:47,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-02-14 16:20:47,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-02-14 16:20:47,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-14 16:20:47,549 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 55 states. [2019-02-14 16:20:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:52,768 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-02-14 16:20:52,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-02-14 16:20:52,768 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-14 16:20:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:20:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-14 16:20:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-14 16:20:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-14 16:20:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-14 16:20:52,770 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 56 transitions. [2019-02-14 16:20:52,829 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 16:20:52,830 INFO L225 Difference]: With dead ends: 56 [2019-02-14 16:20:52,830 INFO L226 Difference]: Without dead ends: 55 [2019-02-14 16:20:52,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-14 16:20:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-02-14 16:20:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-02-14 16:20:52,881 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:20:52,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2019-02-14 16:20:52,881 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2019-02-14 16:20:52,881 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2019-02-14 16:20:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:52,882 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-14 16:20:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-14 16:20:52,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:52,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:52,883 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2019-02-14 16:20:52,883 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2019-02-14 16:20:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:20:52,884 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-14 16:20:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-14 16:20:52,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:20:52,884 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:20:52,884 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:20:52,884 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:20:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-02-14 16:20:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-02-14 16:20:52,885 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2019-02-14 16:20:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:20:52,885 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-02-14 16:20:52,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-02-14 16:20:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-02-14 16:20:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-02-14 16:20:52,886 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:20:52,886 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2019-02-14 16:20:52,886 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:20:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:20:52,886 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2019-02-14 16:20:52,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:20:52,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:52,887 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:20:52,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:20:52,888 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:20:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:54,229 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 16:20:54,230 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 16:20:54,231 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 16:20:54,232 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 16:20:54,233 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 16:20:54,234 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 16:20:54,235 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 16:20:54,236 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 16:20:54,236 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 16:20:54,238 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 16:20:54,238 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 16:20:54,239 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 16:20:54,240 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 16:20:54,241 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 16:20:54,242 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 16:20:54,243 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 16:20:54,244 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 16:20:54,245 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 16:20:54,245 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 16:20:54,247 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 16:20:54,247 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 16:20:54,248 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 16:20:54,249 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 16:20:54,250 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 16:20:54,251 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 16:20:54,252 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 16:20:54,253 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 16:20:54,254 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 16:20:54,254 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 16:20:54,255 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 16:20:54,256 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 16:20:54,257 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 16:20:54,258 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 16:20:54,259 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 16:20:54,260 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 16:20:54,261 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 16:20:54,262 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 16:20:54,263 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 16:20:54,263 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 16:20:54,264 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 16:20:54,265 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 16:20:54,266 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 16:20:54,267 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 16:20:54,268 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 16:20:54,269 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 16:20:54,270 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 16:20:54,271 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 16:20:54,272 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 16:20:54,272 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 16:20:54,274 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 16:20:54,275 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 16:20:54,276 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 16:20:54,276 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 16:20:54,290 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 16:20:54,290 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:54,290 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:20:54,290 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:20:54,291 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:20:54,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:20:54,291 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 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 16:20:54,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:20:54,299 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:20:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:20:54,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:20:54,358 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 16:20:54,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:54,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:54,363 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:20:54,365 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:54,366 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 16:20:54,366 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:20:55,811 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 16:20:55,813 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:20:55,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:20:55,819 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:20:55,822 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:20:55,822 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 16:20:55,822 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= 100 .cse0)) (<= 100 .cse0))) [2019-02-14 16:20:55,856 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 16:20:55,857 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 16:20:55,857 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 16:20:55,858 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 16:20:55,858 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 16:20:55,859 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 16:20:55,859 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 16:20:55,860 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 16:20:55,861 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 16:20:55,861 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 16:20:55,862 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 16:20:55,863 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 16:20:55,864 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 16:20:55,864 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 16:20:55,865 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 16:20:55,866 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 16:20:55,866 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 16:20:55,867 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 16:20:55,868 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 16:20:55,868 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 16:20:55,869 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 16:20:55,870 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 16:20:55,870 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 16:20:55,871 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 16:20:55,872 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 16:20:55,873 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 16:20:55,873 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 16:20:55,874 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 16:20:55,875 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 16:20:55,875 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 16:20:55,876 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 16:20:55,877 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 16:20:55,877 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 16:20:55,878 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 16:20:55,879 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 16:20:55,879 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 16:20:55,880 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 16:20:55,881 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 16:20:55,881 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 16:20:55,882 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 16:20:55,883 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 16:20:55,884 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 16:20:55,884 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 16:20:55,885 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 16:20:55,886 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 16:20:55,886 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 16:20:55,887 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 16:20:55,888 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 16:20:55,888 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 16:20:55,889 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 16:20:55,890 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 16:20:55,891 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 16:20:55,891 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 16:20:55,899 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 16:20:55,899 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:20:58,028 INFO L273 TraceCheckUtils]: 52: Hoare triple {9138#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-14 16:20:58,029 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 16:20:58,029 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 16:20:58,030 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 16:20:58,031 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 16:20:58,032 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 16:20:58,033 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 16:20:58,034 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 16:20:58,034 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 16:20:58,035 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 16:20:58,036 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 16:20:58,037 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 16:20:58,037 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 16:20:58,038 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 16:20:58,039 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 16:20:58,040 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 16:20:58,041 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 16:20:58,042 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 16:20:58,042 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 16:20:58,043 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 16:20:58,044 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 16:20:58,045 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 16:20:58,045 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 16:20:58,046 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 16:20:58,047 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 16:20:58,048 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 16:20:58,048 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 16:20:58,050 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 16:20:58,050 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 16:20:58,051 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 16:20:58,052 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 16:20:58,053 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 16:20:58,053 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 16:20:58,054 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 16:20:58,055 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 16:20:58,056 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 16:20:58,056 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 16:20:58,057 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 16:20:58,058 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 16:20:58,059 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 16:20:58,060 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 16:20:58,061 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 16:20:58,061 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 16:20:58,062 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 16:20:58,063 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 16:20:58,064 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 16:20:58,064 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 16:20:58,065 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 16:20:58,066 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 16:20:58,067 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 16:20:58,068 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 16:20:58,069 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 16:20:58,070 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 16:20:58,081 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 16:20:58,100 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:20:58,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 83 [2019-02-14 16:20:58,100 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:20:58,101 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-14 16:20:58,101 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:20:58,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states. [2019-02-14 16:20:58,219 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 16:20:58,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-02-14 16:20:58,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-02-14 16:20:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-02-14 16:20:58,221 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 57 states. [2019-02-14 16:21:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:03,825 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-02-14 16:21:03,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-02-14 16:21:03,825 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-14 16:21:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:21:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-14 16:21:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-14 16:21:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-14 16:21:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-14 16:21:03,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states and 58 transitions. [2019-02-14 16:21:03,888 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 16:21:03,889 INFO L225 Difference]: With dead ends: 58 [2019-02-14 16:21:03,889 INFO L226 Difference]: Without dead ends: 57 [2019-02-14 16:21:03,890 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 16:21:03,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-02-14 16:21:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2019-02-14 16:21:03,941 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:21:03,941 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 56 states. [2019-02-14 16:21:03,941 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 56 states. [2019-02-14 16:21:03,941 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 56 states. [2019-02-14 16:21:03,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:03,942 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-14 16:21:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-14 16:21:03,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:03,943 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:03,943 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 57 states. [2019-02-14 16:21:03,943 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 57 states. [2019-02-14 16:21:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:03,944 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-14 16:21:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-14 16:21:03,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:03,944 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:03,944 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:21:03,944 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:21:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-02-14 16:21:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-02-14 16:21:03,945 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2019-02-14 16:21:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:21:03,945 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-02-14 16:21:03,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-02-14 16:21:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-02-14 16:21:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-02-14 16:21:03,946 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:21:03,946 INFO L402 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2019-02-14 16:21:03,946 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:21:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:21:03,946 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2019-02-14 16:21:03,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:21:03,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:03,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:21:03,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:03,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:21:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:05,288 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 16:21:05,289 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 16:21:05,290 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 16:21:05,291 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 16:21:05,292 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 16:21:05,293 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 16:21:05,294 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 16:21:05,295 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 16:21:05,296 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 16:21:05,297 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 16:21:05,297 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 16:21:05,298 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 16:21:05,299 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 16:21:05,300 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 16:21:05,301 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 16:21:05,302 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 16:21:05,303 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 16:21:05,304 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 16:21:05,305 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 16:21:05,306 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 16:21:05,306 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 16:21:05,307 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 16:21:05,308 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 16:21:05,309 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 16:21:05,310 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 16:21:05,311 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 16:21:05,312 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 16:21:05,313 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 16:21:05,314 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 16:21:05,315 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 16:21:05,316 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 16:21:05,317 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 16:21:05,317 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 16:21:05,319 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 16:21:05,319 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 16:21:05,320 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 16:21:05,321 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 16:21:05,322 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 16:21:05,323 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 16:21:05,324 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 16:21:05,325 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 16:21:05,326 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 16:21:05,327 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 16:21:05,328 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 16:21:05,328 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 16:21:05,329 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 16:21:05,330 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 16:21:05,331 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 16:21:05,332 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 16:21:05,333 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 16:21:05,334 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 16:21:05,335 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 16:21:05,336 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 16:21:05,337 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 16:21:05,338 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 16:21:05,353 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 16:21:05,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:05,354 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:21:05,354 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:21:05,354 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:21:05,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:05,354 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 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 16:21:05,363 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:21:05,363 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:21:05,395 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2019-02-14 16:21:05,396 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:21:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:05,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:21:05,419 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 16:21:05,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:05,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:05,424 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:21:05,428 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:05,428 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 16:21:05,429 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:21:06,992 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 16:21:06,995 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:06,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:06,999 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:21:07,002 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:07,002 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 16:21:07,003 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 104 .cse0) (not (= 104 .cse0)) (<= main_i 108))) [2019-02-14 16:21:07,040 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 16:21:07,041 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 16:21:07,041 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 16:21:07,042 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 16:21:07,042 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 16:21:07,043 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 16:21:07,043 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 16:21:07,044 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 16:21:07,044 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 16:21:07,045 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 16:21:07,046 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 16:21:07,046 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 16:21:07,047 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 16:21:07,048 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 16:21:07,049 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 16:21:07,049 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 16:21:07,050 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 16:21:07,051 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 16:21:07,051 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 16:21:07,052 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 16:21:07,053 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 16:21:07,054 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 16:21:07,054 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 16:21:07,055 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 16:21:07,056 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 16:21:07,057 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 16:21:07,057 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 16:21:07,058 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 16:21:07,059 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 16:21:07,059 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 16:21:07,060 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 16:21:07,061 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 16:21:07,062 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 16:21:07,062 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 16:21:07,063 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 16:21:07,064 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 16:21:07,064 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 16:21:07,065 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 16:21:07,066 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 16:21:07,067 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 16:21:07,067 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 16:21:07,068 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 16:21:07,069 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 16:21:07,070 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 16:21:07,070 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 16:21:07,071 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 16:21:07,072 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 16:21:07,073 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 16:21:07,073 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 16:21:07,074 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 16:21:07,075 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 16:21:07,075 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 16:21:07,076 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 16:21:07,077 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 16:21:07,078 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 16:21:07,086 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 16:21:07,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:21:09,363 INFO L273 TraceCheckUtils]: 54: Hoare triple {9828#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-14 16:21:09,364 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 16:21:09,365 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 16:21:09,366 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 16:21:09,366 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 16:21:09,367 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 16:21:09,368 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 16:21:09,369 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 16:21:09,369 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 16:21:09,370 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 16:21:09,371 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 16:21:09,372 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 16:21:09,373 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 16:21:09,374 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 16:21:09,374 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 16:21:09,375 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 16:21:09,376 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 16:21:09,377 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 16:21:09,377 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 16:21:09,378 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 16:21:09,379 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 16:21:09,380 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 16:21:09,381 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 16:21:09,382 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 16:21:09,382 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 16:21:09,383 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 16:21:09,384 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 16:21:09,385 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 16:21:09,385 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 16:21:09,386 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 16:21:09,387 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 16:21:09,388 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 16:21:09,389 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 16:21:09,390 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 16:21:09,390 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 16:21:09,391 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 16:21:09,392 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 16:21:09,393 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 16:21:09,393 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 16:21:09,394 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 16:21:09,395 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 16:21:09,396 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 16:21:09,397 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 16:21:09,398 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 16:21:09,398 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 16:21:09,399 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 16:21:09,400 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 16:21:09,401 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 16:21:09,401 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 16:21:09,402 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 16:21:09,403 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 16:21:09,404 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 16:21:09,405 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 16:21:09,406 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 16:21:09,407 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 16:21:09,424 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 16:21:09,444 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:21:09,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 86 [2019-02-14 16:21:09,444 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:21:09,445 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-14 16:21:09,445 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:21:09,445 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2019-02-14 16:21:09,570 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 16:21:09,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-02-14 16:21:09,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-02-14 16:21:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-02-14 16:21:09,571 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 59 states. [2019-02-14 16:21:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:13,438 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-02-14 16:21:13,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-02-14 16:21:13,438 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-14 16:21:13,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:21:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-14 16:21:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-14 16:21:13,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-14 16:21:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-14 16:21:13,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 60 transitions. [2019-02-14 16:21:13,500 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 16:21:13,501 INFO L225 Difference]: With dead ends: 60 [2019-02-14 16:21:13,501 INFO L226 Difference]: Without dead ends: 59 [2019-02-14 16:21:13,502 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 16:21:13,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-02-14 16:21:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-02-14 16:21:13,554 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:21:13,554 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2019-02-14 16:21:13,554 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2019-02-14 16:21:13,554 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2019-02-14 16:21:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:13,555 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-14 16:21:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-14 16:21:13,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:13,556 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:13,556 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2019-02-14 16:21:13,556 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2019-02-14 16:21:13,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:13,557 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-14 16:21:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-14 16:21:13,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:13,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:13,558 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:21:13,558 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:21:13,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-02-14 16:21:13,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-02-14 16:21:13,559 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2019-02-14 16:21:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:21:13,559 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-02-14 16:21:13,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-02-14 16:21:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-02-14 16:21:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-02-14 16:21:13,560 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:21:13,560 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2019-02-14 16:21:13,560 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:21:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:21:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2019-02-14 16:21:13,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:21:13,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:13,561 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:21:13,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:13,561 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:21:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:14,887 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 16:21:14,888 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 16:21:14,889 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 16:21:14,890 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 16:21:14,891 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 16:21:14,892 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 16:21:14,893 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 16:21:14,894 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 16:21:14,894 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 16:21:14,896 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 16:21:14,896 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 16:21:14,897 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 16:21:14,898 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 16:21:14,899 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 16:21:14,900 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 16:21:14,901 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 16:21:14,902 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 16:21:14,903 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 16:21:14,904 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 16:21:14,905 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 16:21:14,905 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 16:21:14,906 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 16:21:14,907 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 16:21:14,908 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 16:21:14,909 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 16:21:14,910 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 16:21:14,911 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 16:21:14,912 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 16:21:14,913 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 16:21:14,914 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 16:21:14,914 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 16:21:14,915 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 16:21:14,916 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 16:21:14,917 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 16:21:14,918 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 16:21:14,919 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 16:21:14,920 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 16:21:14,921 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 16:21:14,922 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 16:21:14,923 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 16:21:14,923 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 16:21:14,924 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 16:21:14,925 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 16:21:14,926 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 16:21:14,927 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 16:21:14,928 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 16:21:14,929 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 16:21:14,930 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 16:21:14,931 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 16:21:14,932 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 16:21:14,932 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 16:21:14,933 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 16:21:14,934 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 16:21:14,935 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 16:21:14,936 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 16:21:14,937 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 16:21:14,938 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 16:21:14,955 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 16:21:14,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:14,955 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:21:14,955 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:21:14,955 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:21:14,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:14,955 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 16:21:14,965 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:21:14,965 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:21:14,979 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:21:14,979 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:21:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:14,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:21:15,015 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 16:21:15,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:15,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:15,020 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:21:15,022 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:15,022 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 16:21:15,022 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:21:16,565 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 16:21:16,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:16,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:16,574 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:21:16,576 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:16,576 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 16:21:16,576 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 108 .cse0)) (<= 108 .cse0) (<= main_i 112))) [2019-02-14 16:21:16,613 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 16:21:16,614 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 16:21:16,614 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 16:21:16,615 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 16:21:16,615 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 16:21:16,616 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 16:21:16,617 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 16:21:16,617 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 16:21:16,618 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 16:21:16,619 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 16:21:16,619 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 16:21:16,620 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 16:21:16,621 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 16:21:16,622 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 16:21:16,622 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 16:21:16,623 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 16:21:16,624 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 16:21:16,624 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 16:21:16,625 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 16:21:16,626 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 16:21:16,626 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 16:21:16,627 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 16:21:16,628 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 16:21:16,628 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 16:21:16,629 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 16:21:16,630 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 16:21:16,630 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 16:21:16,631 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 16:21:16,632 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 16:21:16,632 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 16:21:16,633 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 16:21:16,643 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 16:21:16,644 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 16:21:16,645 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 16:21:16,645 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 16:21:16,645 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 16:21:16,646 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 16:21:16,646 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 16:21:16,647 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 16:21:16,648 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 16:21:16,648 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 16:21:16,649 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 16:21:16,650 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 16:21:16,651 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 16:21:16,651 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 16:21:16,652 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 16:21:16,653 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 16:21:16,653 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 16:21:16,654 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 16:21:16,655 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 16:21:16,655 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 16:21:16,656 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 16:21:16,657 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 16:21:16,657 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 16:21:16,658 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 16:21:16,659 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 16:21:16,660 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 16:21:16,669 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 16:21:16,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:21:19,132 INFO L273 TraceCheckUtils]: 56: Hoare triple {10543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-14 16:21:19,133 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 16:21:19,133 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 16:21:19,134 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 16:21:19,135 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 16:21:19,136 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 16:21:19,137 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 16:21:19,138 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 16:21:19,138 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 16:21:19,139 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 16:21:19,140 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 16:21:19,141 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 16:21:19,141 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 16:21:19,143 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 16:21:19,143 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 16:21:19,151 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 16:21:19,151 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 16:21:19,152 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 16:21:19,152 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 16:21:19,153 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 16:21:19,153 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 16:21:19,154 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 16:21:19,154 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 16:21:19,155 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 16:21:19,156 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 16:21:19,157 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 16:21:19,164 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 16:21:19,165 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 16:21:19,165 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 16:21:19,166 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 16:21:19,166 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 16:21:19,167 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 16:21:19,167 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 16:21:19,168 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 16:21:19,169 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 16:21:19,170 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 16:21:19,170 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 16:21:19,171 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 16:21:19,172 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 16:21:19,173 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 16:21:19,173 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 16:21:19,174 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 16:21:19,175 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 16:21:19,176 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 16:21:19,177 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 16:21:19,178 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 16:21:19,178 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 16:21:19,179 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 16:21:19,180 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 16:21:19,181 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 16:21:19,181 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 16:21:19,182 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 16:21:19,183 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 16:21:19,184 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 16:21:19,185 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 16:21:19,186 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 16:21:19,187 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 16:21:19,200 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 16:21:19,218 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:21:19,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 89 [2019-02-14 16:21:19,218 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:21:19,219 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-14 16:21:19,219 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:21:19,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states. [2019-02-14 16:21:19,349 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 16:21:19,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-02-14 16:21:19,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-02-14 16:21:19,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-14 16:21:19,350 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 61 states. [2019-02-14 16:21:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:25,347 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-02-14 16:21:25,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-02-14 16:21:25,348 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-14 16:21:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:21:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-14 16:21:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-14 16:21:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-14 16:21:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-14 16:21:25,350 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 62 transitions. [2019-02-14 16:21:25,421 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 16:21:25,422 INFO L225 Difference]: With dead ends: 62 [2019-02-14 16:21:25,422 INFO L226 Difference]: Without dead ends: 61 [2019-02-14 16:21:25,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-14 16:21:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-02-14 16:21:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2019-02-14 16:21:25,480 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:21:25,480 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 60 states. [2019-02-14 16:21:25,480 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 60 states. [2019-02-14 16:21:25,481 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 60 states. [2019-02-14 16:21:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:25,482 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-14 16:21:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-14 16:21:25,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:25,482 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:25,482 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 61 states. [2019-02-14 16:21:25,483 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 61 states. [2019-02-14 16:21:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:25,484 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-14 16:21:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-14 16:21:25,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:25,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:25,484 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:21:25,484 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:21:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-02-14 16:21:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-02-14 16:21:25,485 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2019-02-14 16:21:25,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:21:25,486 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-02-14 16:21:25,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-02-14 16:21:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-02-14 16:21:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-02-14 16:21:25,486 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:21:25,487 INFO L402 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2019-02-14 16:21:25,487 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:21:25,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:21:25,487 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2019-02-14 16:21:25,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:21:25,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:25,488 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:21:25,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:25,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:21:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:27,076 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 16:21:27,077 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 16:21:27,078 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 16:21:27,079 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 16:21:27,080 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 16:21:27,081 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 16:21:27,081 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 16:21:27,083 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 16:21:27,083 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 16:21:27,084 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 16:21:27,085 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 16:21:27,086 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 16:21:27,087 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 16:21:27,088 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 16:21:27,089 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 16:21:27,090 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 16:21:27,091 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 16:21:27,092 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 16:21:27,093 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 16:21:27,094 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 16:21:27,095 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 16:21:27,096 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 16:21:27,096 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 16:21:27,098 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 16:21:27,098 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 16:21:27,099 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 16:21:27,100 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 16:21:27,101 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 16:21:27,102 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 16:21:27,103 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 16:21:27,104 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 16:21:27,105 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 16:21:27,106 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 16:21:27,107 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 16:21:27,108 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 16:21:27,109 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 16:21:27,110 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 16:21:27,111 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 16:21:27,112 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 16:21:27,113 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 16:21:27,114 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 16:21:27,115 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 16:21:27,116 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 16:21:27,117 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 16:21:27,118 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 16:21:27,119 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 16:21:27,119 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 16:21:27,120 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 16:21:27,121 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 16:21:27,122 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 16:21:27,123 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 16:21:27,124 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 16:21:27,125 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 16:21:27,126 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 16:21:27,127 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 16:21:27,128 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 16:21:27,129 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 16:21:27,130 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 16:21:27,131 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 16:21:27,146 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 16:21:27,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:27,147 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:21:27,147 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:21:27,147 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:21:27,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:27,147 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 16:21:27,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:21:27,157 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:21:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:27,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:21:27,225 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 16:21:27,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:27,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:27,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:21:27,237 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:27,237 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 16:21:27,238 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:21:28,714 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 16:21:28,731 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:28,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:28,735 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:21:28,737 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:28,737 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 16:21:28,738 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 112 .cse0)) (<= 112 .cse0) (<= main_i 116))) [2019-02-14 16:21:28,775 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 16:21:28,776 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 16:21:28,777 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 16:21:28,777 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 16:21:28,778 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 16:21:28,779 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 16:21:28,782 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 16:21:28,783 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 16:21:28,783 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 16:21:28,785 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 16:21:28,786 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 16:21:28,786 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 16:21:28,786 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 16:21:28,787 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 16:21:28,787 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 16:21:28,788 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 16:21:28,788 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 16:21:28,789 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 16:21:28,790 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 16:21:28,790 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 16:21:28,791 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 16:21:28,792 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 16:21:28,792 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 16:21:28,809 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 16:21:28,825 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 16:21:28,834 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 16:21:28,849 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 16:21:28,858 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 16:21:28,860 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 16:21:28,861 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 16:21:28,861 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 16:21:28,864 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 16:21:28,864 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 16:21:28,865 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 16:21:28,865 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 16:21:28,865 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 16:21:28,866 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 16:21:28,869 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 16:21:28,870 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 16:21:28,870 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 16:21:28,871 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 16:21:28,875 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 16:21:28,875 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 16:21:28,876 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 16:21:28,876 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 16:21:28,877 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 16:21:28,877 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 16:21:28,877 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 16:21:28,878 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 16:21:28,878 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 16:21:28,879 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 16:21:28,879 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 16:21:28,880 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 16:21:28,880 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 16:21:28,881 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 16:21:28,883 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 16:21:28,883 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 16:21:28,884 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 16:21:28,885 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 16:21:28,894 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 16:21:28,894 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:21:31,683 INFO L273 TraceCheckUtils]: 58: Hoare triple {11283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-14 16:21:31,684 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 16:21:31,684 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 16:21:31,685 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 16:21:31,685 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 16:21:31,686 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 16:21:31,686 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 16:21:31,687 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 16:21:31,688 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 16:21:31,689 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 16:21:31,689 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 16:21:31,690 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 16:21:31,691 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 16:21:31,692 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 16:21:31,692 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 16:21:31,694 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 16:21:31,694 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 16:21:31,695 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 16:21:31,696 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 16:21:31,697 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 16:21:31,697 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 16:21:31,698 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 16:21:31,699 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 16:21:31,700 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 16:21:31,700 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 16:21:31,702 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 16:21:31,702 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 16:21:31,703 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 16:21:31,704 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 16:21:31,705 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 16:21:31,705 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 16:21:31,706 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 16:21:31,707 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 16:21:31,708 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 16:21:31,708 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 16:21:31,709 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 16:21:31,710 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 16:21:31,711 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 16:21:31,712 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 16:21:31,713 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 16:21:31,713 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 16:21:31,714 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 16:21:31,715 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 16:21:31,716 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 16:21:31,716 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 16:21:31,718 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 16:21:31,718 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 16:21:31,719 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 16:21:31,720 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 16:21:31,721 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 16:21:31,721 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 16:21:31,722 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 16:21:31,723 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 16:21:31,724 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 16:21:31,725 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 16:21:31,726 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 16:21:31,728 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 16:21:31,729 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 16:21:31,730 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 16:21:31,743 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 16:21:31,761 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:21:31,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 92 [2019-02-14 16:21:31,761 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:21:31,762 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-14 16:21:31,762 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:21:31,762 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states. [2019-02-14 16:21:31,899 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 16:21:31,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-02-14 16:21:31,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-02-14 16:21:31,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-14 16:21:31,900 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 63 states. [2019-02-14 16:21:37,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:37,097 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-02-14 16:21:37,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-02-14 16:21:37,098 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-14 16:21:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:21:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-14 16:21:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-14 16:21:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-14 16:21:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-14 16:21:37,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 64 transitions. [2019-02-14 16:21:37,168 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 16:21:37,169 INFO L225 Difference]: With dead ends: 64 [2019-02-14 16:21:37,169 INFO L226 Difference]: Without dead ends: 63 [2019-02-14 16:21:37,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-14 16:21:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-02-14 16:21:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2019-02-14 16:21:37,235 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:21:37,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 62 states. [2019-02-14 16:21:37,235 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 62 states. [2019-02-14 16:21:37,235 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 62 states. [2019-02-14 16:21:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:37,236 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-14 16:21:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-14 16:21:37,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:37,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:37,237 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 63 states. [2019-02-14 16:21:37,237 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 63 states. [2019-02-14 16:21:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:37,238 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-14 16:21:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-14 16:21:37,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:37,239 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:37,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:21:37,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:21:37,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-02-14 16:21:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-02-14 16:21:37,240 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2019-02-14 16:21:37,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:21:37,240 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-02-14 16:21:37,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-02-14 16:21:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-02-14 16:21:37,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-02-14 16:21:37,241 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:21:37,241 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2019-02-14 16:21:37,241 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:21:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:21:37,242 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2019-02-14 16:21:37,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:21:37,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:37,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:21:37,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:37,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:21:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:38,936 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 16:21:38,937 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 16:21:38,938 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 16:21:38,939 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 16:21:38,940 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 16:21:38,941 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 16:21:38,941 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 16:21:38,942 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 16:21:38,943 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 16:21:38,944 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 16:21:38,945 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 16:21:38,946 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 16:21:38,947 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 16:21:38,948 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 16:21:38,949 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 16:21:38,950 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 16:21:38,950 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 16:21:38,952 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 16:21:38,952 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 16:21:38,953 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 16:21:38,954 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 16:21:38,955 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 16:21:38,956 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 16:21:38,957 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 16:21:38,958 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 16:21:38,959 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 16:21:38,959 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 16:21:38,960 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 16:21:38,961 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 16:21:38,962 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 16:21:38,963 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 16:21:38,964 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 16:21:38,965 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 16:21:38,966 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 16:21:38,967 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 16:21:38,968 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 16:21:38,968 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 16:21:38,969 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 16:21:38,970 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 16:21:38,971 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 16:21:38,972 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 16:21:38,973 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 16:21:38,974 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 16:21:38,975 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 16:21:38,976 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 16:21:38,977 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 16:21:38,977 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 16:21:38,978 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 16:21:38,979 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 16:21:38,980 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 16:21:38,981 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 16:21:38,982 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 16:21:38,983 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 16:21:38,984 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 16:21:38,984 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 16:21:38,986 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 16:21:38,986 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 16:21:38,987 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 16:21:38,988 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 16:21:38,989 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 16:21:38,990 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 16:21:39,013 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 16:21:39,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:39,013 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:21:39,013 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:21:39,013 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:21:39,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:39,014 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 16:21:39,029 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:21:39,030 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:21:39,079 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2019-02-14 16:21:39,079 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:21:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:39,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:21:39,112 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 16:21:39,113 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:39,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:39,116 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:21:39,126 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:39,126 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 16:21:39,126 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:21:40,734 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 16:21:40,736 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:40,742 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:40,742 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:21:40,745 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:40,745 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 16:21:40,745 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 116 .cse0)) (<= main_i 120) (<= 116 .cse0))) [2019-02-14 16:21:40,781 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 16:21:40,782 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 16:21:40,782 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 16:21:40,783 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 16:21:40,784 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 16:21:40,785 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 16:21:40,789 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 16:21:40,791 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 16:21:40,792 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 16:21:40,792 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 16:21:40,796 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 16:21:40,797 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 16:21:40,797 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 16:21:40,798 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 16:21:40,798 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 16:21:40,799 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 16:21:40,800 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 16:21:40,801 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 16:21:40,801 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 16:21:40,803 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 16:21:40,805 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 16:21:40,806 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 16:21:40,806 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 16:21:40,814 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 16:21:40,814 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 16:21:40,816 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 16:21:40,817 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 16:21:40,819 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 16:21:40,820 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 16:21:40,821 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 16:21:40,821 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 16:21:40,823 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 16:21:40,823 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 16:21:40,825 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 16:21:40,825 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 16:21:40,827 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 16:21:40,827 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 16:21:40,828 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 16:21:40,830 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 16:21:40,830 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 16:21:40,832 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 16:21:40,832 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 16:21:40,834 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 16:21:40,835 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 16:21:40,836 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 16:21:40,836 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 16:21:40,838 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 16:21:40,838 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 16:21:40,840 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 16:21:40,840 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 16:21:40,842 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 16:21:40,842 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 16:21:40,844 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 16:21:40,844 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 16:21:40,846 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 16:21:40,846 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 16:21:40,848 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 16:21:40,848 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 16:21:40,850 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 16:21:40,850 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 16:21:40,852 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 16:21:40,860 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 16:21:40,860 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:21:43,947 INFO L273 TraceCheckUtils]: 60: Hoare triple {12048#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-14 16:21:43,948 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 16:21:43,949 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 16:21:43,950 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 16:21:43,950 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 16:21:43,952 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 16:21:43,952 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 16:21:43,953 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 16:21:43,954 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 16:21:43,955 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 16:21:43,955 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 16:21:43,956 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 16:21:43,957 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 16:21:43,958 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 16:21:43,958 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 16:21:43,960 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 16:21:43,960 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 16:21:43,961 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 16:21:43,962 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 16:21:43,963 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 16:21:43,963 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 16:21:43,964 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 16:21:43,965 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 16:21:43,966 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 16:21:43,967 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 16:21:43,968 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 16:21:43,968 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 16:21:43,969 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 16:21:43,970 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 16:21:43,971 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 16:21:43,971 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 16:21:43,972 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 16:21:43,973 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 16:21:43,974 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 16:21:43,974 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 16:21:43,976 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 16:21:43,976 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 16:21:43,977 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 16:21:43,978 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 16:21:43,979 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 16:21:43,979 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 16:21:43,981 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 16:21:43,981 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 16:21:43,982 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 16:21:43,983 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 16:21:43,984 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 16:21:43,984 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 16:21:43,985 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 16:21:43,986 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 16:21:43,987 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 16:21:43,987 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 16:21:43,988 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 16:21:43,989 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 16:21:43,990 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 16:21:43,991 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 16:21:43,992 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 16:21:43,992 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 16:21:43,993 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 16:21:43,994 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 16:21:43,995 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 16:21:43,996 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 16:21:44,011 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 16:21:44,029 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:21:44,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 95 [2019-02-14 16:21:44,029 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:21:44,030 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-14 16:21:44,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:21:44,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2019-02-14 16:21:44,171 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 16:21:44,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-02-14 16:21:44,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-02-14 16:21:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-14 16:21:44,173 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 65 states. [2019-02-14 16:21:49,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:49,414 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-02-14 16:21:49,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-02-14 16:21:49,414 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-14 16:21:49,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:21:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-14 16:21:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-14 16:21:49,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-14 16:21:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-14 16:21:49,416 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 66 transitions. [2019-02-14 16:21:49,488 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 16:21:49,489 INFO L225 Difference]: With dead ends: 66 [2019-02-14 16:21:49,489 INFO L226 Difference]: Without dead ends: 65 [2019-02-14 16:21:49,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2108 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-14 16:21:49,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-02-14 16:21:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2019-02-14 16:21:49,555 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:21:49,555 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 64 states. [2019-02-14 16:21:49,555 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 64 states. [2019-02-14 16:21:49,556 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 64 states. [2019-02-14 16:21:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:49,556 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-14 16:21:49,557 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-14 16:21:49,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:49,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:49,557 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 65 states. [2019-02-14 16:21:49,557 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 65 states. [2019-02-14 16:21:49,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:21:49,558 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-14 16:21:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-14 16:21:49,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:21:49,559 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:21:49,559 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:21:49,559 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:21:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-02-14 16:21:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-02-14 16:21:49,560 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2019-02-14 16:21:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:21:49,560 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-02-14 16:21:49,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-02-14 16:21:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-02-14 16:21:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-02-14 16:21:49,561 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:21:49,561 INFO L402 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2019-02-14 16:21:49,561 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:21:49,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:21:49,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2019-02-14 16:21:49,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:21:49,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:49,563 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:21:49,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:21:49,563 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:21:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:51,264 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 16:21:51,265 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 16:21:51,266 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 16:21:51,268 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 16:21:51,268 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 16:21:51,270 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 16:21:51,270 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 16:21:51,272 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 16:21:51,272 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 16:21:51,274 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 16:21:51,274 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 16:21:51,277 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 16:21:51,277 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 16:21:51,279 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 16:21:51,279 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 16:21:51,281 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 16:21:51,281 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 16:21:51,283 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 16:21:51,283 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 16:21:51,285 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 16:21:51,285 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 16:21:51,287 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 16:21:51,288 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 16:21:51,289 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 16:21:51,290 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 16:21:51,291 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 16:21:51,293 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 16:21:51,294 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 16:21:51,295 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 16:21:51,295 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 16:21:51,297 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 16:21:51,299 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 16:21:51,300 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 16:21:51,301 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 16:21:51,301 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 16:21:51,303 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 16:21:51,305 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 16:21:51,307 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 16:21:51,307 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 16:21:51,309 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 16:21:51,309 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 16:21:51,311 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 16:21:51,311 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 16:21:51,313 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 16:21:51,313 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 16:21:51,315 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 16:21:51,315 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 16:21:51,317 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 16:21:51,317 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 16:21:51,319 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 16:21:51,319 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 16:21:51,321 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 16:21:51,321 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 16:21:51,323 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 16:21:51,323 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 16:21:51,325 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 16:21:51,325 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 16:21:51,327 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 16:21:51,327 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 16:21:51,329 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 16:21:51,329 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 16:21:51,331 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 16:21:51,331 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 16:21:51,349 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 16:21:51,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:51,349 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:21:51,349 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:21:51,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:21:51,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:21:51,350 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 16:21:51,359 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:21:51,360 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:21:51,379 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:21:51,379 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:21:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:21:51,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:21:51,414 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 16:21:51,416 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:51,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:51,426 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:21:51,428 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:51,428 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 16:21:51,428 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:21:53,162 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 16:21:53,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:21:53,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:21:53,170 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:21:53,173 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:21:53,173 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 16:21:53,173 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (not (= 120 .cse0)) (<= main_i 124))) [2019-02-14 16:21:53,221 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 16:21:53,222 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 16:21:53,222 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 16:21:53,223 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 16:21:53,223 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 16:21:53,223 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 16:21:53,224 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 16:21:53,225 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 16:21:53,225 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 16:21:53,226 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 16:21:53,227 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 16:21:53,227 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 16:21:53,228 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 16:21:53,229 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 16:21:53,230 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 16:21:53,230 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 16:21:53,231 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 16:21:53,232 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 16:21:53,232 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 16:21:53,233 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 16:21:53,234 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 16:21:53,234 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 16:21:53,235 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 16:21:53,236 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 16:21:53,236 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 16:21:53,237 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 16:21:53,238 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 16:21:53,238 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 16:21:53,239 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 16:21:53,240 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 16:21:53,240 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 16:21:53,241 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 16:21:53,242 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 16:21:53,242 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 16:21:53,243 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 16:21:53,244 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 16:21:53,244 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 16:21:53,245 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 16:21:53,246 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 16:21:53,247 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 16:21:53,247 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 16:21:53,248 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 16:21:53,249 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 16:21:53,249 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 16:21:53,250 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 16:21:53,251 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 16:21:53,251 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 16:21:53,252 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 16:21:53,253 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 16:21:53,254 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 16:21:53,254 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 16:21:53,255 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 16:21:53,256 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 16:21:53,256 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 16:21:53,257 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 16:21:53,258 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 16:21:53,258 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 16:21:53,259 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 16:21:53,260 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 16:21:53,260 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 16:21:53,261 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 16:21:53,262 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 16:21:53,263 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 16:21:53,273 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 16:21:53,273 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:21:56,416 INFO L273 TraceCheckUtils]: 62: Hoare triple {12838#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-14 16:21:56,418 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 16:21:56,418 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 16:21:56,420 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 16:21:56,420 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 16:21:56,422 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 16:21:56,422 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 16:21:56,424 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 16:21:56,424 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 16:21:56,427 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 16:21:56,427 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 16:21:56,429 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 16:21:56,429 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 16:21:56,432 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 16:21:56,434 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 16:21:56,436 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 16:21:56,436 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 16:21:56,438 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 16:21:56,438 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 16:21:56,440 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 16:21:56,440 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 16:21:56,442 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 16:21:56,444 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 16:21:56,444 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 16:21:56,446 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 16:21:56,446 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 16:21:56,448 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 16:21:56,449 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 16:21:56,449 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 16:21:56,454 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 16:21:56,456 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 16:21:56,457 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 16:21:56,458 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 16:21:56,458 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 16:21:56,460 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 16:21:56,461 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 16:21:56,462 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 16:21:56,463 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 16:21:56,464 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 16:21:56,465 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 16:21:56,466 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 16:21:56,468 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 16:21:56,468 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 16:21:56,470 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 16:21:56,470 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 16:21:56,472 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 16:21:56,474 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 16:21:56,475 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 16:21:56,476 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 16:21:56,478 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 16:21:56,480 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 16:21:56,481 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 16:21:56,482 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 16:21:56,482 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 16:21:56,484 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 16:21:56,484 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 16:21:56,486 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 16:21:56,487 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 16:21:56,488 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 16:21:56,489 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 16:21:56,490 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 16:21:56,491 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 16:21:56,492 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 16:21:56,507 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 16:21:56,526 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:21:56,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 98 [2019-02-14 16:21:56,526 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:21:56,526 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-14 16:21:56,526 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:21:56,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states. [2019-02-14 16:21:56,726 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 16:21:56,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-02-14 16:21:56,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-02-14 16:21:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-14 16:21:56,728 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 67 states. [2019-02-14 16:22:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:03,459 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2019-02-14 16:22:03,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-02-14 16:22:03,459 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-14 16:22:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:22:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-14 16:22:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-14 16:22:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-14 16:22:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-14 16:22:03,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 68 transitions. [2019-02-14 16:22:03,542 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 16:22:03,543 INFO L225 Difference]: With dead ends: 68 [2019-02-14 16:22:03,543 INFO L226 Difference]: Without dead ends: 67 [2019-02-14 16:22:03,544 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-14 16:22:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-02-14 16:22:03,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2019-02-14 16:22:03,618 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:22:03,618 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 66 states. [2019-02-14 16:22:03,619 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 66 states. [2019-02-14 16:22:03,619 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 66 states. [2019-02-14 16:22:03,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:03,620 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-14 16:22:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-14 16:22:03,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:03,621 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:03,621 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 67 states. [2019-02-14 16:22:03,622 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 67 states. [2019-02-14 16:22:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:03,622 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-14 16:22:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-14 16:22:03,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:03,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:03,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:22:03,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:22:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-02-14 16:22:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2019-02-14 16:22:03,624 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2019-02-14 16:22:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:22:03,624 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2019-02-14 16:22:03,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-02-14 16:22:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2019-02-14 16:22:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-02-14 16:22:03,624 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:22:03,624 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2019-02-14 16:22:03,625 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:22:03,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:22:03,625 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2019-02-14 16:22:03,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:22:03,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:03,626 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:22:03,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:03,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:22:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:05,391 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 16:22:05,392 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 16:22:05,393 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 16:22:05,394 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 16:22:05,395 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 16:22:05,396 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 16:22:05,397 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 16:22:05,398 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 16:22:05,399 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 16:22:05,400 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 16:22:05,400 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 16:22:05,402 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 16:22:05,402 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 16:22:05,403 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 16:22:05,404 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 16:22:05,405 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 16:22:05,406 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 16:22:05,407 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 16:22:05,408 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 16:22:05,409 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 16:22:05,410 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 16:22:05,411 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 16:22:05,412 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 16:22:05,413 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 16:22:05,414 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 16:22:05,415 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 16:22:05,416 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 16:22:05,417 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 16:22:05,417 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 16:22:05,418 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 16:22:05,419 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 16:22:05,420 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 16:22:05,421 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 16:22:05,422 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 16:22:05,423 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 16:22:05,424 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 16:22:05,425 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 16:22:05,426 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 16:22:05,427 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 16:22:05,428 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 16:22:05,429 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 16:22:05,430 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 16:22:05,430 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 16:22:05,431 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 16:22:05,432 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 16:22:05,433 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 16:22:05,434 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 16:22:05,435 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 16:22:05,436 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 16:22:05,437 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 16:22:05,438 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 16:22:05,439 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 16:22:05,439 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 16:22:05,441 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 16:22:05,441 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 16:22:05,442 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 16:22:05,443 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 16:22:05,444 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 16:22:05,445 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 16:22:05,446 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 16:22:05,447 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 16:22:05,448 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 16:22:05,449 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 16:22:05,450 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 16:22:05,451 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 16:22:05,471 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 16:22:05,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:05,471 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:22:05,471 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:22:05,471 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:22:05,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:05,471 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 16:22:05,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:22:05,481 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:22:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:05,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:22:05,532 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 16:22:05,533 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:05,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:05,539 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:22:05,541 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:05,541 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 16:22:05,541 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:22:07,582 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 16:22:07,584 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:07,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:07,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:22:07,593 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:07,594 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 16:22:07,594 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (<= main_i 128) (not (= 124 .cse0)))) [2019-02-14 16:22:07,635 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 16:22:07,636 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 16:22:07,636 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 16:22:07,637 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 16:22:07,638 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 16:22:07,638 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 16:22:07,639 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 16:22:07,640 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 16:22:07,641 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 16:22:07,641 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 16:22:07,642 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 16:22:07,643 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 16:22:07,643 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 16:22:07,644 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 16:22:07,645 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 16:22:07,645 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 16:22:07,646 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 16:22:07,647 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 16:22:07,647 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 16:22:07,648 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 16:22:07,649 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 16:22:07,649 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 16:22:07,650 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 16:22:07,651 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 16:22:07,651 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 16:22:07,652 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 16:22:07,653 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 16:22:07,653 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 16:22:07,654 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 16:22:07,655 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 16:22:07,655 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 16:22:07,656 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 16:22:07,657 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 16:22:07,658 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 16:22:07,658 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 16:22:07,659 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 16:22:07,660 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 16:22:07,660 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 16:22:07,661 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 16:22:07,662 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 16:22:07,662 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 16:22:07,663 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 16:22:07,664 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 16:22:07,665 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 16:22:07,665 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 16:22:07,666 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 16:22:07,667 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 16:22:07,667 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 16:22:07,668 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 16:22:07,669 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 16:22:07,669 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 16:22:07,670 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 16:22:07,671 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 16:22:07,671 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 16:22:07,672 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 16:22:07,673 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 16:22:07,673 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 16:22:07,674 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 16:22:07,675 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 16:22:07,675 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 16:22:07,676 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 16:22:07,677 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 16:22:07,678 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 16:22:07,678 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 16:22:07,679 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 16:22:07,689 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 16:22:07,689 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:22:10,724 INFO L273 TraceCheckUtils]: 64: Hoare triple {13653#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-14 16:22:10,725 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 16:22:10,726 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 16:22:10,727 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 16:22:10,728 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 16:22:10,729 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 16:22:10,729 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 16:22:10,732 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 16:22:10,732 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 16:22:10,733 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 16:22:10,734 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 16:22:10,735 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 16:22:10,735 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 16:22:10,736 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 16:22:10,736 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 16:22:10,737 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 16:22:10,737 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 16:22:10,738 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 16:22:10,739 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 16:22:10,740 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 16:22:10,740 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 16:22:10,741 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 16:22:10,742 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 16:22:10,743 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 16:22:10,744 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 16:22:10,745 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 16:22:10,745 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 16:22:10,746 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 16:22:10,747 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 16:22:10,748 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 16:22:10,748 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 16:22:10,749 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 16:22:10,750 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 16:22:10,751 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 16:22:10,752 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 16:22:10,753 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 16:22:10,753 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 16:22:10,754 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 16:22:10,755 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 16:22:10,756 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 16:22:10,756 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 16:22:10,757 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 16:22:10,758 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 16:22:10,759 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 16:22:10,759 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 16:22:10,761 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 16:22:10,761 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 16:22:10,762 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 16:22:10,763 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 16:22:10,764 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 16:22:10,764 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 16:22:10,765 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 16:22:10,766 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 16:22:10,767 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 16:22:10,767 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 16:22:10,769 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 16:22:10,769 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 16:22:10,770 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 16:22:10,771 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 16:22:10,772 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 16:22:10,772 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 16:22:10,773 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 16:22:10,774 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 16:22:10,775 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 16:22:10,776 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 16:22:10,792 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 16:22:10,810 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:22:10,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 101 [2019-02-14 16:22:10,810 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:22:10,810 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-14 16:22:10,811 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:22:10,811 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states. [2019-02-14 16:22:10,963 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 16:22:10,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2019-02-14 16:22:10,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2019-02-14 16:22:10,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-14 16:22:10,965 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 69 states. [2019-02-14 16:22:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:19,301 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-02-14 16:22:19,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-02-14 16:22:19,301 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-14 16:22:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:22:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-14 16:22:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-14 16:22:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-14 16:22:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-14 16:22:19,303 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 70 transitions. [2019-02-14 16:22:19,375 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 16:22:19,376 INFO L225 Difference]: With dead ends: 70 [2019-02-14 16:22:19,376 INFO L226 Difference]: Without dead ends: 69 [2019-02-14 16:22:19,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-14 16:22:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-02-14 16:22:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2019-02-14 16:22:19,442 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:22:19,442 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 68 states. [2019-02-14 16:22:19,442 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 68 states. [2019-02-14 16:22:19,442 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 68 states. [2019-02-14 16:22:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:19,444 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-14 16:22:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-14 16:22:19,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:19,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:19,445 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 69 states. [2019-02-14 16:22:19,445 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 69 states. [2019-02-14 16:22:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:19,445 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-14 16:22:19,445 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-14 16:22:19,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:19,446 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:19,446 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:22:19,446 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:22:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-02-14 16:22:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-02-14 16:22:19,447 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2019-02-14 16:22:19,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:22:19,447 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-02-14 16:22:19,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2019-02-14 16:22:19,447 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-02-14 16:22:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-02-14 16:22:19,448 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:22:19,448 INFO L402 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2019-02-14 16:22:19,448 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:22:19,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:22:19,448 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2019-02-14 16:22:19,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:22:19,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:19,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:22:19,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:19,449 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:22:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:21,139 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 16:22:21,140 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 16:22:21,141 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 16:22:21,142 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 16:22:21,143 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 16:22:21,144 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 16:22:21,145 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 16:22:21,146 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 16:22:21,147 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 16:22:21,148 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 16:22:21,148 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 16:22:21,149 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 16:22:21,150 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 16:22:21,151 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 16:22:21,152 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 16:22:21,171 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 16:22:21,180 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 16:22:21,181 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 16:22:21,181 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 16:22:21,199 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 16:22:21,208 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 16:22:21,222 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 16:22:21,231 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 16:22:21,245 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 16:22:21,254 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 16:22:21,269 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 16:22:21,278 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 16:22:21,293 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 16:22:21,302 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 16:22:21,315 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 16:22:21,324 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 16:22:21,339 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 16:22:21,353 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 16:22:21,362 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 16:22:21,375 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 16:22:21,384 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 16:22:21,396 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 16:22:21,398 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 16:22:21,400 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 16:22:21,400 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 16:22:21,403 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 16:22:21,404 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 16:22:21,405 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 16:22:21,405 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 16:22:21,407 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 16:22:21,408 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 16:22:21,409 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 16:22:21,410 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 16:22:21,411 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 16:22:21,412 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 16:22:21,412 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 16:22:21,413 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 16:22:21,414 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 16:22:21,415 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 16:22:21,416 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 16:22:21,417 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 16:22:21,418 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 16:22:21,419 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 16:22:21,419 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 16:22:21,420 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 16:22:21,421 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 16:22:21,422 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 16:22:21,423 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 16:22:21,424 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 16:22:21,425 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 16:22:21,426 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 16:22:21,427 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 16:22:21,446 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 16:22:21,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:21,447 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:22:21,447 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:22:21,447 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:22:21,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:21,447 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 16:22:21,455 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:22:21,455 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:22:21,496 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2019-02-14 16:22:21,496 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:22:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:21,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:22:21,526 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 16:22:21,527 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:21,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:21,533 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:22:21,535 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:21,535 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 16:22:21,535 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:22:23,665 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 16:22:23,667 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:23,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:23,677 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:22:23,679 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:23,679 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 16:22:23,679 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (<= 128 .cse0) (not (= 128 .cse0)))) [2019-02-14 16:22:23,721 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 16:22:23,721 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 16:22:23,722 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 16:22:23,722 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 16:22:23,723 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 16:22:23,724 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 16:22:23,724 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 16:22:23,725 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 16:22:23,726 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 16:22:23,726 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 16:22:23,727 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 16:22:23,728 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 16:22:23,728 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 16:22:23,729 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 16:22:23,730 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 16:22:23,730 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 16:22:23,731 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 16:22:23,732 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 16:22:23,732 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 16:22:23,733 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 16:22:23,734 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 16:22:23,734 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 16:22:23,735 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 16:22:23,736 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 16:22:23,736 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 16:22:23,737 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 16:22:23,738 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 16:22:23,739 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 16:22:23,739 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 16:22:23,740 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 16:22:23,741 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 16:22:23,741 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 16:22:23,742 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 16:22:23,743 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 16:22:23,743 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 16:22:23,744 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 16:22:23,745 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 16:22:23,745 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 16:22:23,746 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 16:22:23,747 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 16:22:23,747 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 16:22:23,748 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 16:22:23,749 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 16:22:23,750 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 16:22:23,750 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 16:22:23,751 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 16:22:23,752 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 16:22:23,752 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 16:22:23,753 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 16:22:23,754 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 16:22:23,755 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 16:22:23,756 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 16:22:23,756 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 16:22:23,757 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 16:22:23,758 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 16:22:23,758 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 16:22:23,759 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 16:22:23,760 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 16:22:23,760 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 16:22:23,761 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 16:22:23,762 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 16:22:23,762 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 16:22:23,763 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 16:22:23,764 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 16:22:23,765 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 16:22:23,765 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 16:22:23,766 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 16:22:23,779 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 16:22:23,779 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:22:26,982 INFO L273 TraceCheckUtils]: 66: Hoare triple {14493#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-14 16:22:26,983 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 16:22:26,985 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 16:22:26,985 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 16:22:26,987 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 16:22:26,989 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 16:22:26,989 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 16:22:26,991 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 16:22:26,991 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 16:22:26,993 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 16:22:26,993 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 16:22:26,995 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 16:22:26,995 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 16:22:26,996 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 16:22:26,996 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 16:22:26,998 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 16:22:26,998 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 16:22:27,000 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 16:22:27,000 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 16:22:27,002 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 16:22:27,002 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 16:22:27,004 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 16:22:27,004 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 16:22:27,006 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 16:22:27,006 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 16:22:27,008 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 16:22:27,008 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 16:22:27,010 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 16:22:27,010 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 16:22:27,012 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 16:22:27,012 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 16:22:27,014 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 16:22:27,014 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 16:22:27,016 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 16:22:27,016 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 16:22:27,018 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 16:22:27,018 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 16:22:27,020 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 16:22:27,020 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 16:22:27,022 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 16:22:27,022 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 16:22:27,024 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 16:22:27,024 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 16:22:27,026 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 16:22:27,026 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 16:22:27,028 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 16:22:27,028 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 16:22:27,030 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 16:22:27,030 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 16:22:27,032 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 16:22:27,032 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 16:22:27,034 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 16:22:27,034 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 16:22:27,036 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 16:22:27,036 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 16:22:27,038 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 16:22:27,038 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 16:22:27,040 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 16:22:27,040 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 16:22:27,042 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 16:22:27,042 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 16:22:27,044 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 16:22:27,044 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 16:22:27,046 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 16:22:27,046 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 16:22:27,048 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 16:22:27,048 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 16:22:27,064 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 16:22:27,081 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:22:27,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 104 [2019-02-14 16:22:27,082 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:22:27,082 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-14 16:22:27,083 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:22:27,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2019-02-14 16:22:27,286 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 16:22:27,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-02-14 16:22:27,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-02-14 16:22:27,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-14 16:22:27,287 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 71 states. [2019-02-14 16:22:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:33,484 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-02-14 16:22:33,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-02-14 16:22:33,484 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-14 16:22:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:22:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-14 16:22:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-14 16:22:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-14 16:22:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-14 16:22:33,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 72 transitions. [2019-02-14 16:22:33,563 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 16:22:33,564 INFO L225 Difference]: With dead ends: 72 [2019-02-14 16:22:33,564 INFO L226 Difference]: Without dead ends: 71 [2019-02-14 16:22:33,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-14 16:22:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-02-14 16:22:33,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2019-02-14 16:22:33,630 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:22:33,630 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 70 states. [2019-02-14 16:22:33,630 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 70 states. [2019-02-14 16:22:33,630 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 70 states. [2019-02-14 16:22:33,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:33,631 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-14 16:22:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-14 16:22:33,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:33,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:33,632 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 71 states. [2019-02-14 16:22:33,632 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 71 states. [2019-02-14 16:22:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:33,633 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-14 16:22:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-14 16:22:33,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:33,634 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:33,634 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:22:33,634 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:22:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-02-14 16:22:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2019-02-14 16:22:33,635 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2019-02-14 16:22:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:22:33,635 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2019-02-14 16:22:33,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-02-14 16:22:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2019-02-14 16:22:33,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-02-14 16:22:33,636 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:22:33,636 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2019-02-14 16:22:33,636 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:22:33,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:22:33,637 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2019-02-14 16:22:33,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:22:33,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:33,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:22:33,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:33,638 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:22:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:35,421 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 16:22:35,423 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 16:22:35,423 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 16:22:35,424 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 16:22:35,425 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 16:22:35,426 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 16:22:35,427 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 16:22:35,428 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 16:22:35,429 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 16:22:35,430 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 16:22:35,431 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 16:22:35,432 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 16:22:35,432 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 16:22:35,433 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 16:22:35,434 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 16:22:35,435 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 16:22:35,436 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 16:22:35,437 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 16:22:35,438 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 16:22:35,439 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 16:22:35,439 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 16:22:35,441 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 16:22:35,441 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 16:22:35,442 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 16:22:35,443 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 16:22:35,444 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 16:22:35,445 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 16:22:35,446 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 16:22:35,447 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 16:22:35,448 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 16:22:35,448 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 16:22:35,449 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 16:22:35,450 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 16:22:35,451 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 16:22:35,452 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 16:22:35,453 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 16:22:35,454 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 16:22:35,455 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 16:22:35,456 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 16:22:35,457 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 16:22:35,457 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 16:22:35,458 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 16:22:35,459 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 16:22:35,460 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 16:22:35,461 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 16:22:35,462 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 16:22:35,463 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 16:22:35,464 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 16:22:35,465 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 16:22:35,466 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 16:22:35,466 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 16:22:35,467 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 16:22:35,468 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 16:22:35,469 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 16:22:35,470 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 16:22:35,471 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 16:22:35,472 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 16:22:35,473 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 16:22:35,473 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 16:22:35,474 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 16:22:35,475 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 16:22:35,476 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 16:22:35,477 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 16:22:35,478 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 16:22:35,479 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 16:22:35,480 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 16:22:35,481 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 16:22:35,482 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 16:22:35,482 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 16:22:35,504 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 16:22:35,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:35,504 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:22:35,504 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:22:35,504 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:22:35,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:35,505 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 16:22:35,513 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:22:35,513 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:22:35,540 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:22:35,540 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:22:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:35,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:22:35,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-14 16:22:35,566 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:35,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:35,569 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:22:35,572 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:35,572 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 16:22:35,572 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:22:37,777 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 16:22:37,779 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:37,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:37,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:22:37,788 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:37,788 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 16:22:37,788 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= 132 .cse0)))) [2019-02-14 16:22:37,846 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 16:22:37,846 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 16:22:37,848 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 16:22:37,848 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 16:22:37,852 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 16:22:37,852 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 16:22:37,854 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 16:22:37,854 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 16:22:37,856 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 16:22:37,856 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 16:22:37,859 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 16:22:37,859 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 16:22:37,865 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 16:22:37,867 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 16:22:37,869 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 16:22:37,869 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 16:22:37,871 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 16:22:37,871 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 16:22:37,874 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 16:22:37,874 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 16:22:37,876 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 16:22:37,876 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 16:22:37,878 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 16:22:37,878 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 16:22:37,880 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 16:22:37,880 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 16:22:37,883 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 16:22:37,883 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 16:22:37,885 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 16:22:37,885 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 16:22:37,886 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 16:22:37,887 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 16:22:37,887 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 16:22:37,888 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 16:22:37,888 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 16:22:37,889 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 16:22:37,889 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 16:22:37,890 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 16:22:37,891 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 16:22:37,891 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 16:22:37,892 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 16:22:37,893 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 16:22:37,893 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 16:22:37,894 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 16:22:37,895 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 16:22:37,895 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 16:22:37,896 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 16:22:37,897 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 16:22:37,897 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 16:22:37,898 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 16:22:37,899 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 16:22:37,900 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 16:22:37,900 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 16:22:37,901 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 16:22:37,902 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 16:22:37,902 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 16:22:37,903 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 16:22:37,904 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 16:22:37,904 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 16:22:37,905 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 16:22:37,906 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 16:22:37,906 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 16:22:37,907 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 16:22:37,908 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 16:22:37,909 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 16:22:37,909 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 16:22:37,910 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 16:22:37,911 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 16:22:37,912 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 16:22:37,923 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 16:22:37,923 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:22:41,357 INFO L273 TraceCheckUtils]: 68: Hoare triple {15358#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-14 16:22:41,358 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 16:22:41,359 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 16:22:41,360 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 16:22:41,361 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 16:22:41,362 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 16:22:41,362 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 16:22:41,364 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 16:22:41,364 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 16:22:41,365 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 16:22:41,366 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 16:22:41,367 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 16:22:41,368 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 16:22:41,369 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 16:22:41,369 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 16:22:41,370 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 16:22:41,376 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 16:22:41,377 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 16:22:41,377 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 16:22:41,378 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 16:22:41,378 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 16:22:41,379 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 16:22:41,379 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 16:22:41,380 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 16:22:41,380 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 16:22:41,381 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 16:22:41,382 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 16:22:41,383 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 16:22:41,384 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 16:22:41,385 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 16:22:41,385 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 16:22:41,387 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 16:22:41,387 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 16:22:41,388 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 16:22:41,389 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 16:22:41,390 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 16:22:41,390 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 16:22:41,392 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 16:22:41,392 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 16:22:41,393 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 16:22:41,394 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 16:22:41,395 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 16:22:41,396 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 16:22:41,397 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 16:22:41,397 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 16:22:41,398 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 16:22:41,399 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 16:22:41,400 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 16:22:41,401 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 16:22:41,402 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 16:22:41,402 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 16:22:41,403 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 16:22:41,404 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 16:22:41,405 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 16:22:41,406 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 16:22:41,407 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 16:22:41,407 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 16:22:41,408 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 16:22:41,409 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 16:22:41,410 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 16:22:41,411 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 16:22:41,412 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 16:22:41,412 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 16:22:41,414 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 16:22:41,414 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 16:22:41,415 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 16:22:41,416 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 16:22:41,417 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 16:22:41,418 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 16:22:41,436 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 16:22:41,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:22:41,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 107 [2019-02-14 16:22:41,454 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:22:41,454 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-14 16:22:41,455 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:22:41,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states. [2019-02-14 16:22:41,616 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 16:22:41,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2019-02-14 16:22:41,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2019-02-14 16:22:41,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-14 16:22:41,617 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 73 states. [2019-02-14 16:22:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:50,308 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2019-02-14 16:22:50,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-02-14 16:22:50,308 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-14 16:22:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:22:50,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-14 16:22:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-14 16:22:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-14 16:22:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-14 16:22:50,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 74 transitions. [2019-02-14 16:22:50,393 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 16:22:50,395 INFO L225 Difference]: With dead ends: 74 [2019-02-14 16:22:50,395 INFO L226 Difference]: Without dead ends: 73 [2019-02-14 16:22:50,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2660 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-14 16:22:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-02-14 16:22:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2019-02-14 16:22:50,470 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:22:50,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 72 states. [2019-02-14 16:22:50,471 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 72 states. [2019-02-14 16:22:50,471 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 72 states. [2019-02-14 16:22:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:50,472 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-14 16:22:50,472 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-14 16:22:50,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:50,473 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:50,473 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 73 states. [2019-02-14 16:22:50,473 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 73 states. [2019-02-14 16:22:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:22:50,474 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-14 16:22:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-14 16:22:50,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:22:50,475 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:22:50,475 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:22:50,475 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:22:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-02-14 16:22:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2019-02-14 16:22:50,476 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2019-02-14 16:22:50,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:22:50,476 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2019-02-14 16:22:50,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2019-02-14 16:22:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2019-02-14 16:22:50,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-02-14 16:22:50,477 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:22:50,477 INFO L402 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2019-02-14 16:22:50,477 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:22:50,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:22:50,478 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2019-02-14 16:22:50,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:22:50,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:50,478 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:22:50,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:22:50,479 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:22:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:52,217 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 16:22:52,218 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 16:22:52,219 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 16:22:52,220 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 16:22:52,221 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 16:22:52,222 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 16:22:52,222 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 16:22:52,223 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 16:22:52,224 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 16:22:52,225 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 16:22:52,226 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 16:22:52,227 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 16:22:52,228 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 16:22:52,229 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 16:22:52,229 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 16:22:52,230 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 16:22:52,231 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 16:22:52,232 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 16:22:52,233 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 16:22:52,234 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 16:22:52,235 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 16:22:52,236 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 16:22:52,237 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 16:22:52,238 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 16:22:52,238 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 16:22:52,239 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 16:22:52,240 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 16:22:52,241 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 16:22:52,242 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 16:22:52,243 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 16:22:52,244 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 16:22:52,245 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 16:22:52,245 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 16:22:52,247 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 16:22:52,247 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 16:22:52,248 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 16:22:52,249 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 16:22:52,250 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 16:22:52,251 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 16:22:52,252 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 16:22:52,253 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 16:22:52,254 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 16:22:52,254 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 16:22:52,255 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 16:22:52,256 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 16:22:52,257 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 16:22:52,258 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 16:22:52,259 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 16:22:52,260 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 16:22:52,261 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 16:22:52,262 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 16:22:52,263 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 16:22:52,263 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 16:22:52,264 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 16:22:52,265 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 16:22:52,266 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 16:22:52,267 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 16:22:52,268 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 16:22:52,269 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 16:22:52,270 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 16:22:52,270 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 16:22:52,271 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 16:22:52,272 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 16:22:52,273 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 16:22:52,274 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 16:22:52,275 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 16:22:52,276 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 16:22:52,277 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 16:22:52,278 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 16:22:52,279 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 16:22:52,280 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 16:22:52,302 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 16:22:52,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:52,303 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:22:52,303 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:22:52,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:22:52,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:22:52,303 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 16:22:52,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:22:52,311 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:22:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:22:52,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:22:52,354 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 16:22:52,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:52,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:52,363 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:22:52,365 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:52,365 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 16:22:52,365 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:22:54,558 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 16:22:54,560 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:22:54,564 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:22:54,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:22:54,567 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:22:54,567 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 16:22:54,568 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 136 .cse0)) (<= 136 .cse0) (<= main_i 140))) [2019-02-14 16:22:54,611 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 16:22:54,612 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 16:22:54,612 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 16:22:54,612 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 16:22:54,613 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 16:22:54,613 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 16:22:54,614 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 16:22:54,614 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 16:22:54,615 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 16:22:54,616 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 16:22:54,616 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 16:22:54,617 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 16:22:54,618 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 16:22:54,618 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 16:22:54,619 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 16:22:54,620 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 16:22:54,620 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 16:22:54,621 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 16:22:54,622 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 16:22:54,622 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 16:22:54,623 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 16:22:54,624 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 16:22:54,624 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 16:22:54,625 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 16:22:54,626 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 16:22:54,626 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 16:22:54,627 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 16:22:54,628 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 16:22:54,628 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 16:22:54,629 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 16:22:54,630 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 16:22:54,631 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 16:22:54,631 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 16:22:54,632 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 16:22:54,633 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 16:22:54,633 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 16:22:54,634 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 16:22:54,635 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 16:22:54,635 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 16:22:54,636 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 16:22:54,637 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 16:22:54,637 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 16:22:54,638 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 16:22:54,639 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 16:22:54,639 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 16:22:54,640 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 16:22:54,641 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 16:22:54,641 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 16:22:54,642 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 16:22:54,643 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 16:22:54,643 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 16:22:54,644 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 16:22:54,645 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 16:22:54,646 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 16:22:54,646 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 16:22:54,647 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 16:22:54,648 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 16:22:54,648 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 16:22:54,649 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 16:22:54,650 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 16:22:54,650 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 16:22:54,651 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 16:22:54,652 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 16:22:54,652 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 16:22:54,653 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 16:22:54,654 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 16:22:54,654 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 16:22:54,655 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 16:22:54,656 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 16:22:54,657 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 16:22:54,657 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 16:22:54,669 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 16:22:54,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:22:58,452 INFO L273 TraceCheckUtils]: 70: Hoare triple {16248#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-14 16:22:58,453 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 16:22:58,454 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 16:22:58,454 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 16:22:58,455 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 16:22:58,455 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 16:22:58,456 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 16:22:58,457 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 16:22:58,457 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 16:22:58,458 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 16:22:58,459 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 16:22:58,460 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 16:22:58,460 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 16:22:58,461 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 16:22:58,462 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 16:22:58,463 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 16:22:58,463 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 16:22:58,464 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 16:22:58,465 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 16:22:58,466 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 16:22:58,467 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 16:22:58,468 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 16:22:58,468 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 16:22:58,469 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 16:22:58,470 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 16:22:58,471 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 16:22:58,471 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 16:22:58,472 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 16:22:58,473 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 16:22:58,474 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 16:22:58,475 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 16:22:58,476 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 16:22:58,476 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 16:22:58,477 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 16:22:58,478 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 16:22:58,479 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 16:22:58,479 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 16:22:58,481 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 16:22:58,481 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 16:22:58,482 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 16:22:58,483 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 16:22:58,484 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 16:22:58,484 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 16:22:58,485 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 16:22:58,486 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 16:22:58,487 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 16:22:58,487 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 16:22:58,488 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 16:22:58,489 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 16:22:58,490 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 16:22:58,490 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 16:22:58,492 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 16:22:58,492 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 16:22:58,493 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 16:22:58,494 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 16:22:58,495 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 16:22:58,495 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 16:22:58,496 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 16:22:58,497 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 16:22:58,498 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 16:22:58,498 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 16:22:58,499 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 16:22:58,500 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 16:22:58,501 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 16:22:58,502 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 16:22:58,503 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 16:22:58,503 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 16:22:58,504 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 16:22:58,505 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 16:22:58,506 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 16:22:58,507 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 16:22:58,525 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 16:22:58,543 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:22:58,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 110 [2019-02-14 16:22:58,544 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:22:58,544 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-14 16:22:58,544 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:22:58,544 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states. [2019-02-14 16:22:58,707 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 16:22:58,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-02-14 16:22:58,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-02-14 16:22:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-02-14 16:22:58,708 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 75 states. [2019-02-14 16:23:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:09,230 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2019-02-14 16:23:09,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-02-14 16:23:09,230 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-14 16:23:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:23:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-14 16:23:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-14 16:23:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-14 16:23:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-14 16:23:09,233 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 76 transitions. [2019-02-14 16:23:09,315 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 16:23:09,316 INFO L225 Difference]: With dead ends: 76 [2019-02-14 16:23:09,316 INFO L226 Difference]: Without dead ends: 75 [2019-02-14 16:23:09,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-02-14 16:23:09,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-02-14 16:23:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2019-02-14 16:23:09,412 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:23:09,412 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 74 states. [2019-02-14 16:23:09,413 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 74 states. [2019-02-14 16:23:09,413 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 74 states. [2019-02-14 16:23:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:09,414 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-14 16:23:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-14 16:23:09,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:09,415 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:09,415 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 75 states. [2019-02-14 16:23:09,415 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 75 states. [2019-02-14 16:23:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:09,416 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-14 16:23:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-14 16:23:09,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:09,416 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:09,417 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:23:09,417 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:23:09,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-02-14 16:23:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2019-02-14 16:23:09,418 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2019-02-14 16:23:09,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:23:09,418 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2019-02-14 16:23:09,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-02-14 16:23:09,418 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2019-02-14 16:23:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-02-14 16:23:09,419 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:23:09,419 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2019-02-14 16:23:09,419 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:23:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:23:09,419 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2019-02-14 16:23:09,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:23:09,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:09,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:23:09,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:09,420 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:23:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:11,477 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 16:23:11,479 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 16:23:11,480 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 16:23:11,481 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 16:23:11,482 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 16:23:11,483 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 16:23:11,483 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 16:23:11,484 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 16:23:11,485 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 16:23:11,486 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 16:23:11,487 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 16:23:11,488 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 16:23:11,489 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 16:23:11,490 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 16:23:11,491 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 16:23:11,492 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 16:23:11,493 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 16:23:11,494 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 16:23:11,495 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 16:23:11,496 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 16:23:11,497 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 16:23:11,498 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 16:23:11,499 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 16:23:11,500 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 16:23:11,500 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 16:23:11,502 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 16:23:11,502 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 16:23:11,503 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 16:23:11,504 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 16:23:11,505 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 16:23:11,506 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 16:23:11,507 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 16:23:11,508 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 16:23:11,509 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 16:23:11,510 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 16:23:11,511 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 16:23:11,512 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 16:23:11,513 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 16:23:11,513 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 16:23:11,514 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 16:23:11,515 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 16:23:11,516 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 16:23:11,517 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 16:23:11,518 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 16:23:11,519 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 16:23:11,520 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 16:23:11,521 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 16:23:11,522 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 16:23:11,522 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 16:23:11,523 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 16:23:11,524 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 16:23:11,525 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 16:23:11,526 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 16:23:11,527 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 16:23:11,528 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 16:23:11,529 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 16:23:11,530 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 16:23:11,531 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 16:23:11,531 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 16:23:11,532 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 16:23:11,533 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 16:23:11,534 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 16:23:11,535 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 16:23:11,536 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 16:23:11,537 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 16:23:11,538 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 16:23:11,539 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 16:23:11,540 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 16:23:11,541 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 16:23:11,542 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 16:23:11,543 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 16:23:11,544 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 16:23:11,545 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 16:23:11,569 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 16:23:11,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:11,570 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:23:11,570 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:23:11,570 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:23:11,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:11,570 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 16:23:11,579 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:23:11,579 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:23:11,627 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2019-02-14 16:23:11,627 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:23:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:11,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:23:11,669 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 16:23:11,670 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:11,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:11,674 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:23:11,676 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:11,676 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 16:23:11,677 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:23:14,054 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 16:23:14,055 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:14,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:14,062 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:23:14,065 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:14,065 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 16:23:14,065 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (not (= 140 .cse0)) (<= main_i 144))) [2019-02-14 16:23:14,110 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 16:23:14,111 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 16:23:14,111 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 16:23:14,112 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 16:23:14,112 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 16:23:14,112 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 16:23:14,113 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 16:23:14,114 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 16:23:14,114 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 16:23:14,115 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 16:23:14,121 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 16:23:14,122 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 16:23:14,122 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 16:23:14,123 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 16:23:14,123 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 16:23:14,123 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 16:23:14,124 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 16:23:14,125 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 16:23:14,125 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 16:23:14,126 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 16:23:14,127 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 16:23:14,127 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 16:23:14,128 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 16:23:14,129 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 16:23:14,129 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 16:23:14,130 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 16:23:14,131 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 16:23:14,132 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 16:23:14,132 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 16:23:14,133 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 16:23:14,134 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 16:23:14,134 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 16:23:14,135 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 16:23:14,136 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 16:23:14,136 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 16:23:14,137 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 16:23:14,138 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 16:23:14,139 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 16:23:14,139 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 16:23:14,140 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 16:23:14,141 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 16:23:14,141 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 16:23:14,142 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 16:23:14,143 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 16:23:14,143 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 16:23:14,144 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 16:23:14,145 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 16:23:14,145 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 16:23:14,146 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 16:23:14,147 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 16:23:14,147 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 16:23:14,148 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 16:23:14,149 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 16:23:14,150 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 16:23:14,150 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 16:23:14,151 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 16:23:14,152 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 16:23:14,152 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 16:23:14,153 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 16:23:14,154 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 16:23:14,154 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 16:23:14,155 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 16:23:14,156 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 16:23:14,156 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 16:23:14,157 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 16:23:14,158 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 16:23:14,159 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 16:23:14,159 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 16:23:14,160 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 16:23:14,161 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 16:23:14,162 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 16:23:14,163 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 16:23:14,163 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 16:23:14,177 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 16:23:14,177 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:23:18,007 INFO L273 TraceCheckUtils]: 72: Hoare triple {17163#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-14 16:23:18,008 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 16:23:18,008 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 16:23:18,010 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 16:23:18,010 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 16:23:18,011 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 16:23:18,012 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 16:23:18,013 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 16:23:18,013 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 16:23:18,014 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 16:23:18,015 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 16:23:18,016 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 16:23:18,016 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 16:23:18,017 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 16:23:18,018 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 16:23:18,019 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 16:23:18,020 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 16:23:18,021 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 16:23:18,021 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 16:23:18,022 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 16:23:18,023 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 16:23:18,024 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 16:23:18,024 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 16:23:18,025 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 16:23:18,026 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 16:23:18,027 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 16:23:18,027 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 16:23:18,029 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 16:23:18,029 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 16:23:18,030 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 16:23:18,031 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 16:23:18,032 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 16:23:18,032 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 16:23:18,033 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 16:23:18,034 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 16:23:18,035 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 16:23:18,035 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 16:23:18,036 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 16:23:18,037 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 16:23:18,038 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 16:23:18,038 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 16:23:18,040 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 16:23:18,040 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 16:23:18,041 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 16:23:18,042 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 16:23:18,043 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 16:23:18,043 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 16:23:18,044 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 16:23:18,045 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 16:23:18,046 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 16:23:18,046 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 16:23:18,047 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 16:23:18,048 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 16:23:18,049 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 16:23:18,050 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 16:23:18,051 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 16:23:18,051 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 16:23:18,052 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 16:23:18,053 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 16:23:18,054 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 16:23:18,054 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 16:23:18,055 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 16:23:18,056 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 16:23:18,057 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 16:23:18,057 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 16:23:18,058 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 16:23:18,059 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 16:23:18,060 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 16:23:18,061 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 16:23:18,062 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 16:23:18,062 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 16:23:18,063 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 16:23:18,064 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 16:23:18,089 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 16:23:18,107 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:23:18,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 113 [2019-02-14 16:23:18,107 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:23:18,108 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-14 16:23:18,108 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:23:18,108 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2019-02-14 16:23:18,290 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 16:23:18,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-02-14 16:23:18,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-02-14 16:23:18,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-14 16:23:18,291 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 77 states. [2019-02-14 16:23:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:28,365 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2019-02-14 16:23:28,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-02-14 16:23:28,365 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-14 16:23:28,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:23:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-14 16:23:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-14 16:23:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-14 16:23:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-14 16:23:28,367 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 78 transitions. [2019-02-14 16:23:28,470 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 16:23:28,471 INFO L225 Difference]: With dead ends: 78 [2019-02-14 16:23:28,471 INFO L226 Difference]: Without dead ends: 77 [2019-02-14 16:23:28,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-14 16:23:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-02-14 16:23:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2019-02-14 16:23:28,682 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:23:28,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 76 states. [2019-02-14 16:23:28,682 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 76 states. [2019-02-14 16:23:28,682 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 76 states. [2019-02-14 16:23:28,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:28,683 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-14 16:23:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-14 16:23:28,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:28,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:28,684 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 77 states. [2019-02-14 16:23:28,684 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 77 states. [2019-02-14 16:23:28,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:28,684 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-14 16:23:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-14 16:23:28,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:28,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:28,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:23:28,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:23:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-02-14 16:23:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2019-02-14 16:23:28,686 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2019-02-14 16:23:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:23:28,687 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2019-02-14 16:23:28,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-02-14 16:23:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2019-02-14 16:23:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-02-14 16:23:28,687 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:23:28,687 INFO L402 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2019-02-14 16:23:28,688 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:23:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:23:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2019-02-14 16:23:28,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:23:28,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:28,689 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:23:28,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:28,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:23:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:30,757 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 16:23:30,758 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 16:23:30,759 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 16:23:30,760 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 16:23:30,761 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 16:23:30,762 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 16:23:30,763 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 16:23:30,764 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 16:23:30,764 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 16:23:30,766 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 16:23:30,766 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 16:23:30,767 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 16:23:30,768 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 16:23:30,769 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 16:23:30,770 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 16:23:30,771 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 16:23:30,772 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 16:23:30,773 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 16:23:30,773 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 16:23:30,775 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 16:23:30,775 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 16:23:30,776 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 16:23:30,777 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 16:23:30,778 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 16:23:30,779 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 16:23:30,780 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 16:23:30,781 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 16:23:30,782 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 16:23:30,783 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 16:23:30,784 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 16:23:30,784 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 16:23:30,785 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 16:23:30,786 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 16:23:30,787 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 16:23:30,788 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 16:23:30,789 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 16:23:30,790 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 16:23:30,791 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 16:23:30,792 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 16:23:30,793 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 16:23:30,794 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 16:23:30,795 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 16:23:30,795 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 16:23:30,797 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 16:23:30,797 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 16:23:30,798 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 16:23:30,799 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 16:23:30,800 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 16:23:30,801 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 16:23:30,802 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 16:23:30,803 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 16:23:30,804 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 16:23:30,805 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 16:23:30,806 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 16:23:30,807 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 16:23:30,808 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 16:23:30,809 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 16:23:30,810 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 16:23:30,811 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 16:23:30,812 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 16:23:30,813 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 16:23:30,814 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 16:23:30,814 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 16:23:30,816 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 16:23:30,816 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 16:23:30,818 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 16:23:30,818 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 16:23:30,819 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 16:23:30,820 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 16:23:30,821 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 16:23:30,822 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 16:23:30,823 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 16:23:30,824 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 16:23:30,825 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 16:23:30,826 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 16:23:30,854 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 16:23:30,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:30,854 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:23:30,854 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:23:30,854 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:23:30,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:30,855 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 16:23:30,870 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:23:30,871 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:23:30,903 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:23:30,903 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:23:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:30,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:23:30,921 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 16:23:30,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:30,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:30,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:23:30,932 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:30,932 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 16:23:30,932 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:23:33,263 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 16:23:33,265 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:33,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:33,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:23:33,274 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:33,274 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 16:23:33,274 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 144 .cse0)) (<= 144 .cse0) (<= main_i 148))) [2019-02-14 16:23:33,323 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 16:23:33,324 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 16:23:33,325 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 16:23:33,325 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 16:23:33,325 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 16:23:33,326 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 16:23:33,326 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 16:23:33,327 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 16:23:33,328 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 16:23:33,328 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 16:23:33,329 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 16:23:33,330 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 16:23:33,331 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 16:23:33,331 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 16:23:33,332 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 16:23:33,333 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 16:23:33,333 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 16:23:33,334 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 16:23:33,335 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 16:23:33,335 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 16:23:33,336 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 16:23:33,337 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 16:23:33,337 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 16:23:33,338 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 16:23:33,339 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 16:23:33,340 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 16:23:33,340 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 16:23:33,341 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 16:23:33,342 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 16:23:33,342 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 16:23:33,343 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 16:23:33,344 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 16:23:33,345 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 16:23:33,345 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 16:23:33,346 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 16:23:33,347 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 16:23:33,347 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 16:23:33,348 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 16:23:33,349 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 16:23:33,350 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 16:23:33,350 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 16:23:33,351 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 16:23:33,352 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 16:23:33,352 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 16:23:33,353 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 16:23:33,354 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 16:23:33,354 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 16:23:33,355 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 16:23:33,356 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 16:23:33,356 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 16:23:33,357 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 16:23:33,358 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 16:23:33,358 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 16:23:33,359 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 16:23:33,360 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 16:23:33,361 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 16:23:33,361 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 16:23:33,362 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 16:23:33,363 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 16:23:33,363 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 16:23:33,364 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 16:23:33,365 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 16:23:33,365 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 16:23:33,366 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 16:23:33,367 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 16:23:33,367 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 16:23:33,368 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 16:23:33,369 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 16:23:33,370 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 16:23:33,370 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 16:23:33,371 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 16:23:33,372 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 16:23:33,373 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 16:23:33,374 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 16:23:33,374 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 16:23:33,388 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 16:23:33,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:23:37,611 INFO L273 TraceCheckUtils]: 74: Hoare triple {18103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-14 16:23:37,612 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 16:23:37,612 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 16:23:37,613 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 16:23:37,613 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 16:23:37,614 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 16:23:37,614 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 16:23:37,615 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 16:23:37,616 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 16:23:37,617 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 16:23:37,617 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 16:23:37,618 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 16:23:37,619 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 16:23:37,620 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 16:23:37,620 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 16:23:37,621 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 16:23:37,622 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 16:23:37,623 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 16:23:37,623 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 16:23:37,625 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 16:23:37,625 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 16:23:37,626 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 16:23:37,627 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 16:23:37,628 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 16:23:37,628 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 16:23:37,629 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 16:23:37,630 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 16:23:37,631 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 16:23:37,632 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 16:23:37,633 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 16:23:37,633 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 16:23:37,634 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 16:23:37,635 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 16:23:37,636 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 16:23:37,637 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 16:23:37,638 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 16:23:37,638 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 16:23:37,639 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 16:23:37,640 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 16:23:37,641 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 16:23:37,642 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 16:23:37,643 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 16:23:37,643 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 16:23:37,644 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 16:23:37,645 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 16:23:37,646 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 16:23:37,647 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 16:23:37,648 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 16:23:37,648 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 16:23:37,649 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 16:23:37,650 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 16:23:37,651 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 16:23:37,652 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 16:23:37,653 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 16:23:37,653 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 16:23:37,655 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 16:23:37,655 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 16:23:37,656 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 16:23:37,657 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 16:23:37,658 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 16:23:37,658 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 16:23:37,659 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 16:23:37,660 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 16:23:37,661 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 16:23:37,661 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 16:23:37,663 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 16:23:37,663 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 16:23:37,664 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 16:23:37,665 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 16:23:37,666 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 16:23:37,666 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 16:23:37,667 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 16:23:37,668 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 16:23:37,669 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 16:23:37,670 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 16:23:37,691 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 16:23:37,711 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:23:37,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 116 [2019-02-14 16:23:37,711 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:23:37,712 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-14 16:23:37,712 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:23:37,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states. [2019-02-14 16:23:37,918 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 16:23:37,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2019-02-14 16:23:37,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2019-02-14 16:23:37,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-14 16:23:37,920 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 79 states. [2019-02-14 16:23:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:46,122 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2019-02-14 16:23:46,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-02-14 16:23:46,123 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-14 16:23:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:23:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-14 16:23:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-14 16:23:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-14 16:23:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-14 16:23:46,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 80 transitions. [2019-02-14 16:23:46,214 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 16:23:46,216 INFO L225 Difference]: With dead ends: 80 [2019-02-14 16:23:46,216 INFO L226 Difference]: Without dead ends: 79 [2019-02-14 16:23:46,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-14 16:23:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-02-14 16:23:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2019-02-14 16:23:46,300 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:23:46,300 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 78 states. [2019-02-14 16:23:46,300 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 78 states. [2019-02-14 16:23:46,300 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 78 states. [2019-02-14 16:23:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:46,302 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-14 16:23:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-14 16:23:46,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:46,302 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:46,303 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 79 states. [2019-02-14 16:23:46,303 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 79 states. [2019-02-14 16:23:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:23:46,304 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-14 16:23:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-14 16:23:46,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:23:46,305 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:23:46,305 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:23:46,305 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:23:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-02-14 16:23:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2019-02-14 16:23:46,306 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2019-02-14 16:23:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:23:46,307 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2019-02-14 16:23:46,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2019-02-14 16:23:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2019-02-14 16:23:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-02-14 16:23:46,307 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:23:46,307 INFO L402 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2019-02-14 16:23:46,308 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:23:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:23:46,308 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2019-02-14 16:23:46,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:23:46,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:46,309 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:23:46,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:23:46,309 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:23:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:46,770 WARN L181 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:23:47,256 WARN L181 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:23:49,185 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 16:23:49,187 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 16:23:49,187 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 16:23:49,188 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 16:23:49,189 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 16:23:49,190 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 16:23:49,191 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 16:23:49,192 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 16:23:49,193 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 16:23:49,194 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 16:23:49,194 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 16:23:49,195 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 16:23:49,196 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 16:23:49,197 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 16:23:49,198 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 16:23:49,199 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 16:23:49,200 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 16:23:49,201 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 16:23:49,202 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 16:23:49,203 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 16:23:49,203 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 16:23:49,204 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 16:23:49,205 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 16:23:49,206 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 16:23:49,207 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 16:23:49,208 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 16:23:49,209 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 16:23:49,210 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 16:23:49,211 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 16:23:49,212 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 16:23:49,212 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 16:23:49,213 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 16:23:49,214 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 16:23:49,215 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 16:23:49,216 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 16:23:49,217 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 16:23:49,218 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 16:23:49,219 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 16:23:49,220 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 16:23:49,221 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 16:23:49,221 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 16:23:49,222 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 16:23:49,223 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 16:23:49,224 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 16:23:49,225 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 16:23:49,226 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 16:23:49,227 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 16:23:49,228 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 16:23:49,228 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 16:23:49,229 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 16:23:49,230 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 16:23:49,231 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 16:23:49,232 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 16:23:49,233 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 16:23:49,234 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 16:23:49,235 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 16:23:49,236 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 16:23:49,237 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 16:23:49,237 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 16:23:49,238 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 16:23:49,239 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 16:23:49,240 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 16:23:49,241 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 16:23:49,242 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 16:23:49,243 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 16:23:49,244 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 16:23:49,244 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 16:23:49,245 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 16:23:49,246 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 16:23:49,247 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 16:23:49,248 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 16:23:49,249 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 16:23:49,250 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 16:23:49,251 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 16:23:49,252 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 16:23:49,253 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 16:23:49,254 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 16:23:49,280 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 16:23:49,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:49,280 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:23:49,280 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:23:49,280 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:23:49,281 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:23:49,281 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 16:23:49,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:23:49,289 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:23:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:23:49,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:23:49,375 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 16:23:49,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:49,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:49,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:23:49,383 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:49,383 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 16:23:49,383 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:23:51,759 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 16:23:51,761 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:23:51,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:23:51,767 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:23:51,770 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:23:51,770 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 16:23:51,770 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 148 .cse0) (not (= 148 .cse0)) (<= main_i 152))) [2019-02-14 16:23:51,816 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 16:23:51,816 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 16:23:51,817 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 16:23:51,817 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 16:23:51,818 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 16:23:51,819 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 16:23:51,819 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 16:23:51,820 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 16:23:51,821 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 16:23:51,821 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 16:23:51,822 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 16:23:51,823 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 16:23:51,823 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 16:23:51,824 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 16:23:51,825 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 16:23:51,825 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 16:23:51,826 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 16:23:51,827 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 16:23:51,827 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 16:23:51,828 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 16:23:51,829 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 16:23:51,829 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 16:23:51,830 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 16:23:51,831 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 16:23:51,832 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 16:23:51,832 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 16:23:51,833 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 16:23:51,834 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 16:23:51,834 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 16:23:51,835 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 16:23:51,836 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 16:23:51,836 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 16:23:51,837 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 16:23:51,838 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 16:23:51,838 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 16:23:51,839 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 16:23:51,840 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 16:23:51,840 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 16:23:51,841 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 16:23:51,842 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 16:23:51,842 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 16:23:51,843 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 16:23:51,844 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 16:23:51,844 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 16:23:51,845 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 16:23:51,846 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 16:23:51,846 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 16:23:51,847 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 16:23:51,848 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 16:23:51,849 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 16:23:51,849 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 16:23:51,850 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 16:23:51,851 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 16:23:51,851 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 16:23:51,852 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 16:23:51,853 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 16:23:51,853 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 16:23:51,854 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 16:23:51,855 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 16:23:51,855 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 16:23:51,856 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 16:23:51,857 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 16:23:51,857 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 16:23:51,858 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 16:23:51,859 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 16:23:51,859 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 16:23:51,860 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 16:23:51,861 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 16:23:51,861 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 16:23:51,862 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 16:23:51,863 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 16:23:51,864 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 16:23:51,864 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 16:23:51,865 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 16:23:51,866 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 16:23:51,867 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 16:23:51,867 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 16:23:51,882 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 16:23:51,882 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:23:56,292 INFO L273 TraceCheckUtils]: 76: Hoare triple {19068#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-14 16:23:56,293 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 16:23:56,294 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 16:23:56,295 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 16:23:56,295 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 16:23:56,296 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 16:23:56,297 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 16:23:56,298 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 16:23:56,298 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 16:23:56,299 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 16:23:56,300 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 16:23:56,301 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 16:23:56,302 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 16:23:56,303 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 16:23:56,303 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 16:23:56,304 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 16:23:56,305 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 16:23:56,306 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 16:23:56,306 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 16:23:56,307 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 16:23:56,308 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 16:23:56,309 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 16:23:56,309 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 16:23:56,310 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 16:23:56,311 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 16:23:56,312 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 16:23:56,313 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 16:23:56,314 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 16:23:56,314 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 16:23:56,315 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 16:23:56,316 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 16:23:56,317 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 16:23:56,317 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 16:23:56,318 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 16:23:56,319 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 16:23:56,320 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 16:23:56,320 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 16:23:56,321 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 16:23:56,322 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 16:23:56,323 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 16:23:56,324 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 16:23:56,325 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 16:23:56,325 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 16:23:56,326 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 16:23:56,327 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 16:23:56,328 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 16:23:56,332 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 16:23:56,333 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 16:23:56,333 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 16:23:56,334 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 16:23:56,334 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 16:23:56,335 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 16:23:56,335 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 16:23:56,336 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 16:23:56,336 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 16:23:56,337 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 16:23:56,338 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 16:23:56,339 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 16:23:56,339 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 16:23:56,340 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 16:23:56,341 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 16:23:56,342 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 16:23:56,342 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 16:23:56,343 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 16:23:56,344 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 16:23:56,345 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 16:23:56,346 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 16:23:56,347 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 16:23:56,347 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 16:23:56,348 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 16:23:56,349 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 16:23:56,350 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 16:23:56,350 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 16:23:56,351 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 16:23:56,352 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 16:23:56,353 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 16:23:56,354 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 16:23:56,375 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 16:23:56,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:23:56,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 119 [2019-02-14 16:23:56,394 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:23:56,394 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-14 16:23:56,394 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:23:56,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states. [2019-02-14 16:23:56,575 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 16:23:56,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2019-02-14 16:23:56,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2019-02-14 16:23:56,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-14 16:23:56,577 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 81 states. [2019-02-14 16:24:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:07,655 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2019-02-14 16:24:07,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-02-14 16:24:07,655 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-14 16:24:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:24:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-14 16:24:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-14 16:24:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-14 16:24:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-14 16:24:07,658 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 82 transitions. [2019-02-14 16:24:07,754 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 16:24:07,755 INFO L225 Difference]: With dead ends: 82 [2019-02-14 16:24:07,755 INFO L226 Difference]: Without dead ends: 81 [2019-02-14 16:24:07,757 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3276 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-14 16:24:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-02-14 16:24:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2019-02-14 16:24:07,845 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:24:07,845 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 80 states. [2019-02-14 16:24:07,845 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 80 states. [2019-02-14 16:24:07,845 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 80 states. [2019-02-14 16:24:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:07,847 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-14 16:24:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-14 16:24:07,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:07,847 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:07,847 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 81 states. [2019-02-14 16:24:07,847 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 81 states. [2019-02-14 16:24:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:07,848 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-14 16:24:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-14 16:24:07,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:07,849 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:07,849 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:24:07,849 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:24:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-02-14 16:24:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2019-02-14 16:24:07,850 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2019-02-14 16:24:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:24:07,850 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2019-02-14 16:24:07,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2019-02-14 16:24:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2019-02-14 16:24:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-02-14 16:24:07,851 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:24:07,851 INFO L402 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2019-02-14 16:24:07,851 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:24:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:24:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2019-02-14 16:24:07,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:24:07,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:07,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:24:07,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:07,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:24:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:08,206 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:24:10,458 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 16:24:10,460 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 16:24:10,461 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 16:24:10,462 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 16:24:10,463 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 16:24:10,464 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 16:24:10,464 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 16:24:10,466 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 16:24:10,466 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 16:24:10,467 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 16:24:10,468 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 16:24:10,469 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 16:24:10,470 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 16:24:10,471 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 16:24:10,472 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 16:24:10,473 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 16:24:10,474 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 16:24:10,475 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 16:24:10,475 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 16:24:10,476 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 16:24:10,477 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 16:24:10,478 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 16:24:10,479 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 16:24:10,480 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 16:24:10,481 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 16:24:10,482 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 16:24:10,483 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 16:24:10,484 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 16:24:10,485 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 16:24:10,486 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 16:24:10,486 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 16:24:10,488 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 16:24:10,488 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 16:24:10,489 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 16:24:10,490 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 16:24:10,491 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 16:24:10,492 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 16:24:10,493 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 16:24:10,494 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 16:24:10,495 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 16:24:10,496 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 16:24:10,497 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 16:24:10,498 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 16:24:10,499 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 16:24:10,500 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 16:24:10,501 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 16:24:10,502 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 16:24:10,503 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 16:24:10,503 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 16:24:10,505 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 16:24:10,505 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 16:24:10,506 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 16:24:10,507 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 16:24:10,508 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 16:24:10,509 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 16:24:10,510 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 16:24:10,511 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 16:24:10,512 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 16:24:10,513 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 16:24:10,514 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 16:24:10,515 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 16:24:10,516 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 16:24:10,516 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 16:24:10,518 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 16:24:10,518 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 16:24:10,519 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 16:24:10,520 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 16:24:10,521 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 16:24:10,522 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 16:24:10,523 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 16:24:10,524 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 16:24:10,525 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 16:24:10,526 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 16:24:10,527 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 16:24:10,528 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 16:24:10,529 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 16:24:10,530 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 16:24:10,531 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 16:24:10,532 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 16:24:10,560 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 16:24:10,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:10,560 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:24:10,560 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:24:10,560 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:24:10,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:10,560 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 16:24:10,569 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:24:10,570 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:24:10,624 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2019-02-14 16:24:10,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:24:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:10,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:24:10,666 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 16:24:10,667 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:10,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:10,672 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:24:10,675 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:10,675 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 16:24:10,675 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:24:13,178 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 16:24:13,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:13,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:13,187 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:24:13,190 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:13,190 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 16:24:13,190 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= 152 .cse0)))) [2019-02-14 16:24:13,238 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 16:24:13,238 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 16:24:13,239 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 16:24:13,239 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 16:24:13,240 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 16:24:13,241 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 16:24:13,241 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 16:24:13,242 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 16:24:13,243 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 16:24:13,243 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 16:24:13,244 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 16:24:13,245 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 16:24:13,245 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 16:24:13,246 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 16:24:13,247 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 16:24:13,248 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 16:24:13,248 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 16:24:13,249 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 16:24:13,250 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 16:24:13,250 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 16:24:13,251 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 16:24:13,252 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 16:24:13,252 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 16:24:13,253 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 16:24:13,254 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 16:24:13,254 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 16:24:13,255 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 16:24:13,256 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 16:24:13,256 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 16:24:13,257 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 16:24:13,258 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 16:24:13,258 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 16:24:13,259 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 16:24:13,260 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 16:24:13,260 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 16:24:13,261 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 16:24:13,262 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 16:24:13,262 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 16:24:13,263 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 16:24:13,264 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 16:24:13,264 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 16:24:13,265 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 16:24:13,266 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 16:24:13,267 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 16:24:13,267 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 16:24:13,268 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 16:24:13,269 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 16:24:13,269 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 16:24:13,270 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 16:24:13,271 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 16:24:13,271 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 16:24:13,272 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 16:24:13,273 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 16:24:13,274 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 16:24:13,274 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 16:24:13,275 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 16:24:13,276 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 16:24:13,276 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 16:24:13,277 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 16:24:13,278 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 16:24:13,278 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 16:24:13,279 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 16:24:13,280 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 16:24:13,280 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 16:24:13,281 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 16:24:13,282 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 16:24:13,283 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 16:24:13,283 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 16:24:13,284 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 16:24:13,285 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 16:24:13,285 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 16:24:13,286 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 16:24:13,287 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 16:24:13,288 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 16:24:13,288 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 16:24:13,289 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 16:24:13,290 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 16:24:13,290 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 16:24:13,291 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 16:24:13,305 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 16:24:13,305 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:24:17,929 INFO L273 TraceCheckUtils]: 78: Hoare triple {20058#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-14 16:24:17,930 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 16:24:17,930 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 16:24:17,931 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 16:24:17,931 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 16:24:17,932 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 16:24:17,932 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 16:24:17,933 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 16:24:17,934 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 16:24:17,935 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 16:24:17,936 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 16:24:17,937 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 16:24:17,937 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 16:24:17,938 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 16:24:17,939 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 16:24:17,940 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 16:24:17,941 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 16:24:17,942 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 16:24:17,942 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 16:24:17,943 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 16:24:17,944 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 16:24:17,945 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 16:24:17,946 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 16:24:17,947 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 16:24:17,947 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 16:24:17,949 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 16:24:17,949 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 16:24:17,950 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 16:24:17,951 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 16:24:17,952 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 16:24:17,953 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 16:24:17,954 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 16:24:17,954 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 16:24:17,961 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 16:24:17,962 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 16:24:17,962 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 16:24:17,963 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 16:24:17,963 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 16:24:17,964 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 16:24:17,964 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 16:24:17,965 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 16:24:17,966 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 16:24:17,966 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 16:24:17,967 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 16:24:17,968 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 16:24:17,969 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 16:24:17,970 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 16:24:17,971 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 16:24:17,971 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 16:24:17,973 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 16:24:17,973 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 16:24:17,974 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 16:24:17,975 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 16:24:17,976 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 16:24:17,977 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 16:24:17,978 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 16:24:17,978 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 16:24:17,979 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 16:24:17,980 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 16:24:17,981 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 16:24:17,982 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 16:24:17,983 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 16:24:17,983 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 16:24:17,985 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 16:24:17,985 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 16:24:17,986 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 16:24:17,987 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 16:24:17,988 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 16:24:17,989 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 16:24:17,990 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 16:24:17,990 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 16:24:17,991 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 16:24:17,992 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 16:24:17,993 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 16:24:17,994 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 16:24:17,995 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 16:24:17,995 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 16:24:17,997 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 16:24:17,998 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 16:24:18,020 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 16:24:18,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:24:18,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 122 [2019-02-14 16:24:18,039 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:24:18,039 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-14 16:24:18,039 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:24:18,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2019-02-14 16:24:18,229 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 16:24:18,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-02-14 16:24:18,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-02-14 16:24:18,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-14 16:24:18,231 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 83 states. [2019-02-14 16:24:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:28,130 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2019-02-14 16:24:28,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-02-14 16:24:28,130 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-14 16:24:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:24:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-14 16:24:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-14 16:24:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-14 16:24:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-14 16:24:28,133 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 84 transitions. [2019-02-14 16:24:28,221 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 16:24:28,223 INFO L225 Difference]: With dead ends: 84 [2019-02-14 16:24:28,223 INFO L226 Difference]: Without dead ends: 83 [2019-02-14 16:24:28,224 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-14 16:24:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-02-14 16:24:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2019-02-14 16:24:28,304 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:24:28,305 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 82 states. [2019-02-14 16:24:28,305 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 82 states. [2019-02-14 16:24:28,305 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 82 states. [2019-02-14 16:24:28,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:28,306 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-14 16:24:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-14 16:24:28,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:28,307 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:28,307 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 83 states. [2019-02-14 16:24:28,307 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 83 states. [2019-02-14 16:24:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:28,308 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-14 16:24:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-14 16:24:28,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:28,308 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:28,309 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:24:28,309 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:24:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-02-14 16:24:28,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2019-02-14 16:24:28,310 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2019-02-14 16:24:28,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:24:28,310 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2019-02-14 16:24:28,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-02-14 16:24:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2019-02-14 16:24:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-02-14 16:24:28,310 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:24:28,310 INFO L402 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2019-02-14 16:24:28,311 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:24:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:24:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2019-02-14 16:24:28,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:24:28,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:28,312 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:24:28,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:28,312 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:24:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:28,682 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:24:30,980 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 16:24:30,981 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 16:24:30,982 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 16:24:30,983 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 16:24:30,984 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 16:24:30,985 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 16:24:30,986 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 16:24:30,987 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 16:24:30,988 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 16:24:30,989 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 16:24:30,989 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 16:24:30,991 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 16:24:30,991 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 16:24:30,992 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 16:24:30,993 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 16:24:30,994 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 16:24:30,995 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 16:24:30,996 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 16:24:30,997 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 16:24:30,998 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 16:24:30,999 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 16:24:31,000 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 16:24:31,001 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 16:24:31,002 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 16:24:31,003 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 16:24:31,004 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 16:24:31,005 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 16:24:31,006 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 16:24:31,007 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 16:24:31,008 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 16:24:31,008 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 16:24:31,009 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 16:24:31,010 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 16:24:31,011 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 16:24:31,012 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 16:24:31,013 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 16:24:31,014 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 16:24:31,015 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 16:24:31,015 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 16:24:31,017 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 16:24:31,017 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 16:24:31,018 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 16:24:31,019 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 16:24:31,020 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 16:24:31,021 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 16:24:31,022 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 16:24:31,023 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 16:24:31,024 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 16:24:31,025 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 16:24:31,026 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 16:24:31,026 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 16:24:31,027 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 16:24:31,028 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 16:24:31,029 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 16:24:31,030 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 16:24:31,031 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 16:24:31,032 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 16:24:31,033 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 16:24:31,033 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 16:24:31,035 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 16:24:31,035 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 16:24:31,036 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 16:24:31,037 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 16:24:31,038 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 16:24:31,039 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 16:24:31,040 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 16:24:31,041 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 16:24:31,042 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 16:24:31,042 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 16:24:31,043 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 16:24:31,044 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 16:24:31,045 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 16:24:31,046 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 16:24:31,047 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 16:24:31,048 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 16:24:31,049 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 16:24:31,050 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 16:24:31,051 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 16:24:31,052 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 16:24:31,053 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 16:24:31,053 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 16:24:31,083 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 16:24:31,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:31,084 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:24:31,084 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:24:31,084 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:24:31,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:31,084 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 16:24:31,093 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:24:31,093 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:24:31,118 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:24:31,118 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:24:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:31,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:24:31,144 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 16:24:31,148 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:31,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:31,157 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:24:31,158 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:31,158 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 16:24:31,159 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:24:33,771 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 16:24:33,773 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:33,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:33,779 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:24:33,782 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:33,782 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 16:24:33,782 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 156 .cse0) (not (= 156 .cse0)) (<= main_i 160))) [2019-02-14 16:24:33,833 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 16:24:33,833 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 16:24:33,834 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 16:24:33,834 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 16:24:33,835 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 16:24:33,836 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 16:24:33,836 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 16:24:33,837 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 16:24:33,838 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 16:24:33,838 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 16:24:33,839 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 16:24:33,840 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 16:24:33,840 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 16:24:33,841 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 16:24:33,842 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 16:24:33,842 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 16:24:33,843 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 16:24:33,844 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 16:24:33,844 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 16:24:33,845 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 16:24:33,846 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 16:24:33,846 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 16:24:33,847 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 16:24:33,848 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 16:24:33,848 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 16:24:33,849 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 16:24:33,850 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 16:24:33,851 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 16:24:33,851 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 16:24:33,852 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 16:24:33,853 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 16:24:33,853 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 16:24:33,854 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 16:24:33,855 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 16:24:33,856 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 16:24:33,856 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 16:24:33,857 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 16:24:33,858 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 16:24:33,858 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 16:24:33,859 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 16:24:33,860 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 16:24:33,861 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 16:24:33,861 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 16:24:33,862 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 16:24:33,863 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 16:24:33,864 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 16:24:33,864 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 16:24:33,865 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 16:24:33,866 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 16:24:33,866 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 16:24:33,867 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 16:24:33,868 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 16:24:33,869 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 16:24:33,869 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 16:24:33,870 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 16:24:33,871 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 16:24:33,871 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 16:24:33,872 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 16:24:33,873 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 16:24:33,874 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 16:24:33,874 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 16:24:33,875 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 16:24:33,876 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 16:24:33,877 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 16:24:33,877 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 16:24:33,878 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 16:24:33,879 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 16:24:33,880 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 16:24:33,880 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 16:24:33,881 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 16:24:33,882 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 16:24:33,883 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 16:24:33,883 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 16:24:33,884 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 16:24:33,885 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 16:24:33,886 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 16:24:33,886 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 16:24:33,887 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 16:24:33,888 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 16:24:33,889 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 16:24:33,889 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 16:24:33,904 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 16:24:33,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:24:38,812 INFO L273 TraceCheckUtils]: 80: Hoare triple {21073#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-14 16:24:38,814 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 16:24:38,814 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 16:24:38,815 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 16:24:38,815 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 16:24:38,816 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 16:24:38,816 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 16:24:38,817 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 16:24:38,818 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 16:24:38,819 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 16:24:38,819 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 16:24:38,821 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 16:24:38,821 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 16:24:38,822 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 16:24:38,823 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 16:24:38,824 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 16:24:38,824 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 16:24:38,825 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 16:24:38,826 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 16:24:38,827 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 16:24:38,827 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 16:24:38,829 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 16:24:38,829 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 16:24:38,830 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 16:24:38,831 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 16:24:38,832 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 16:24:38,832 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 16:24:38,833 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 16:24:38,834 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 16:24:38,835 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 16:24:38,835 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 16:24:38,836 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 16:24:38,837 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 16:24:38,838 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 16:24:38,839 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 16:24:38,840 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 16:24:38,840 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 16:24:38,841 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 16:24:38,842 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 16:24:38,843 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 16:24:38,843 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 16:24:38,844 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 16:24:38,845 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 16:24:38,846 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 16:24:38,846 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 16:24:38,848 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 16:24:38,848 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 16:24:38,849 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 16:24:38,850 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 16:24:38,851 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 16:24:38,851 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 16:24:38,852 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 16:24:38,853 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 16:24:38,854 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 16:24:38,854 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 16:24:38,855 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 16:24:38,856 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 16:24:38,857 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 16:24:38,858 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 16:24:38,859 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 16:24:38,859 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 16:24:38,860 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 16:24:38,861 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 16:24:38,862 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 16:24:38,862 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 16:24:38,863 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 16:24:38,864 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 16:24:38,865 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 16:24:38,865 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 16:24:38,866 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 16:24:38,867 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 16:24:38,868 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 16:24:38,869 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 16:24:38,870 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 16:24:38,870 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 16:24:38,871 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 16:24:38,872 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 16:24:38,873 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 16:24:38,873 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 16:24:38,874 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 16:24:38,875 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 16:24:38,900 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 16:24:38,918 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:24:38,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 125 [2019-02-14 16:24:38,919 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:24:38,919 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-14 16:24:38,919 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:24:38,919 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states. [2019-02-14 16:24:39,113 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 16:24:39,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2019-02-14 16:24:39,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2019-02-14 16:24:39,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-14 16:24:39,114 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 85 states. [2019-02-14 16:24:48,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:48,567 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2019-02-14 16:24:48,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-02-14 16:24:48,568 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-14 16:24:48,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:24:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-14 16:24:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-14 16:24:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-14 16:24:48,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-14 16:24:48,570 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 86 transitions. [2019-02-14 16:24:48,664 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 16:24:48,666 INFO L225 Difference]: With dead ends: 86 [2019-02-14 16:24:48,666 INFO L226 Difference]: Without dead ends: 85 [2019-02-14 16:24:48,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-14 16:24:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-02-14 16:24:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2019-02-14 16:24:48,753 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:24:48,753 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 84 states. [2019-02-14 16:24:48,753 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 84 states. [2019-02-14 16:24:48,753 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 84 states. [2019-02-14 16:24:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:48,755 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-14 16:24:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-14 16:24:48,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:48,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:48,755 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 85 states. [2019-02-14 16:24:48,755 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 85 states. [2019-02-14 16:24:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:24:48,756 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-14 16:24:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-14 16:24:48,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:24:48,757 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:24:48,757 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:24:48,757 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:24:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-02-14 16:24:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2019-02-14 16:24:48,758 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2019-02-14 16:24:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:24:48,758 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2019-02-14 16:24:48,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2019-02-14 16:24:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2019-02-14 16:24:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-02-14 16:24:48,759 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:24:48,759 INFO L402 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2019-02-14 16:24:48,759 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:24:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:24:48,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2019-02-14 16:24:48,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:24:48,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:48,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:24:48,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:24:48,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:24:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:51,257 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 16:24:51,258 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 16:24:51,259 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 16:24:51,260 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 16:24:51,261 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 16:24:51,262 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 16:24:51,263 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 16:24:51,264 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 16:24:51,264 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 16:24:51,265 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 16:24:51,266 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 16:24:51,267 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 16:24:51,268 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 16:24:51,269 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 16:24:51,270 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 16:24:51,271 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 16:24:51,272 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 16:24:51,273 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 16:24:51,273 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 16:24:51,274 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 16:24:51,275 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 16:24:51,276 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 16:24:51,277 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 16:24:51,278 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 16:24:51,279 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 16:24:51,280 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 16:24:51,280 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 16:24:51,282 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 16:24:51,282 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 16:24:51,283 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 16:24:51,284 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 16:24:51,285 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 16:24:51,286 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 16:24:51,287 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 16:24:51,288 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 16:24:51,289 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 16:24:51,289 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 16:24:51,290 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 16:24:51,299 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 16:24:51,299 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 16:24:51,300 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 16:24:51,301 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 16:24:51,301 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 16:24:51,302 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 16:24:51,302 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 16:24:51,304 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 16:24:51,304 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 16:24:51,305 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 16:24:51,306 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 16:24:51,307 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 16:24:51,308 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 16:24:51,309 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 16:24:51,310 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 16:24:51,311 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 16:24:51,311 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 16:24:51,312 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 16:24:51,313 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 16:24:51,314 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 16:24:51,315 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 16:24:51,316 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 16:24:51,317 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 16:24:51,318 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 16:24:51,319 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 16:24:51,320 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 16:24:51,320 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 16:24:51,321 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 16:24:51,322 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 16:24:51,323 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 16:24:51,324 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 16:24:51,325 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 16:24:51,326 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 16:24:51,327 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 16:24:51,328 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 16:24:51,329 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 16:24:51,329 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 16:24:51,330 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 16:24:51,331 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 16:24:51,332 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 16:24:51,333 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 16:24:51,334 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 16:24:51,335 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 16:24:51,336 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 16:24:51,337 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 16:24:51,367 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 16:24:51,367 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:51,368 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:24:51,368 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:24:51,368 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:24:51,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:24:51,368 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 16:24:51,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:24:51,376 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:24:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:24:51,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:24:51,449 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 16:24:51,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:51,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:51,455 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:24:51,457 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:51,458 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 16:24:51,458 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:24:54,242 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 16:24:54,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:24:54,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:24:54,251 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:24:54,254 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:24:54,254 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 16:24:54,254 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 160 .cse0)))) [2019-02-14 16:24:54,308 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 16:24:54,309 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 16:24:54,309 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 16:24:54,310 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 16:24:54,310 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 16:24:54,311 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 16:24:54,312 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 16:24:54,313 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 16:24:54,313 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 16:24:54,314 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 16:24:54,315 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 16:24:54,315 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 16:24:54,316 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 16:24:54,317 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 16:24:54,317 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 16:24:54,318 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 16:24:54,319 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 16:24:54,319 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 16:24:54,320 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 16:24:54,321 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 16:24:54,321 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 16:24:54,322 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 16:24:54,323 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 16:24:54,323 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 16:24:54,324 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 16:24:54,325 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 16:24:54,325 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 16:24:54,326 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 16:24:54,327 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 16:24:54,327 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 16:24:54,328 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 16:24:54,329 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 16:24:54,329 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 16:24:54,330 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 16:24:54,331 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 16:24:54,331 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 16:24:54,332 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 16:24:54,333 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 16:24:54,333 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 16:24:54,334 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 16:24:54,335 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 16:24:54,336 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 16:24:54,336 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 16:24:54,337 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 16:24:54,338 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 16:24:54,338 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 16:24:54,339 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 16:24:54,340 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 16:24:54,340 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 16:24:54,341 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 16:24:54,342 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 16:24:54,342 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 16:24:54,343 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 16:24:54,344 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 16:24:54,344 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 16:24:54,345 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 16:24:54,346 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 16:24:54,346 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 16:24:54,347 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 16:24:54,348 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 16:24:54,348 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 16:24:54,349 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 16:24:54,350 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 16:24:54,351 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 16:24:54,351 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 16:24:54,352 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 16:24:54,353 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 16:24:54,353 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 16:24:54,354 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 16:24:54,355 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 16:24:54,355 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 16:24:54,356 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 16:24:54,357 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 16:24:54,358 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 16:24:54,358 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 16:24:54,359 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 16:24:54,360 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 16:24:54,360 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 16:24:54,361 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 16:24:54,362 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 16:24:54,362 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 16:24:54,363 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 16:24:54,364 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 16:24:54,380 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 16:24:54,380 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:24:59,509 INFO L273 TraceCheckUtils]: 82: Hoare triple {22113#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-14 16:24:59,510 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 16:24:59,511 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 16:24:59,511 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 16:24:59,512 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 16:24:59,513 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 16:24:59,513 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 16:24:59,514 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 16:24:59,515 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 16:24:59,516 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 16:24:59,516 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 16:24:59,517 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 16:24:59,518 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 16:24:59,519 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 16:24:59,520 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 16:24:59,521 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 16:24:59,521 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 16:24:59,522 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 16:24:59,523 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 16:24:59,524 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 16:24:59,524 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 16:24:59,525 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 16:24:59,526 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 16:24:59,527 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 16:24:59,528 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 16:24:59,529 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 16:24:59,529 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 16:24:59,530 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 16:24:59,531 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 16:24:59,532 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 16:24:59,532 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 16:24:59,533 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 16:24:59,534 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 16:24:59,535 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 16:24:59,535 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 16:24:59,536 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 16:24:59,537 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 16:24:59,538 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 16:24:59,539 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 16:24:59,540 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 16:24:59,540 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 16:24:59,541 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 16:24:59,542 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 16:24:59,543 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 16:24:59,543 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 16:24:59,544 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 16:24:59,545 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 16:24:59,546 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 16:24:59,547 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 16:24:59,548 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 16:24:59,548 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 16:24:59,549 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 16:24:59,550 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 16:24:59,551 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 16:24:59,551 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 16:24:59,552 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 16:24:59,553 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 16:24:59,554 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 16:24:59,555 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 16:24:59,556 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 16:24:59,556 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 16:24:59,557 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 16:24:59,558 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 16:24:59,559 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 16:24:59,559 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 16:24:59,560 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 16:24:59,561 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 16:24:59,562 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 16:24:59,562 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 16:24:59,564 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 16:24:59,564 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 16:24:59,565 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 16:24:59,566 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 16:24:59,567 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 16:24:59,567 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 16:24:59,568 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 16:24:59,569 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 16:24:59,570 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 16:24:59,570 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 16:24:59,571 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 16:24:59,572 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 16:24:59,573 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 16:24:59,574 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 16:24:59,600 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 16:24:59,619 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:24:59,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 128 [2019-02-14 16:24:59,619 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:24:59,620 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-14 16:24:59,620 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:24:59,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states. [2019-02-14 16:24:59,826 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 16:24:59,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2019-02-14 16:24:59,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2019-02-14 16:24:59,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-14 16:24:59,828 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 87 states. [2019-02-14 16:25:09,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:09,998 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2019-02-14 16:25:10,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-02-14 16:25:10,003 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-14 16:25:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:25:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-14 16:25:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-14 16:25:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-14 16:25:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-14 16:25:10,004 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 88 transitions. [2019-02-14 16:25:10,103 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 16:25:10,105 INFO L225 Difference]: With dead ends: 88 [2019-02-14 16:25:10,105 INFO L226 Difference]: Without dead ends: 87 [2019-02-14 16:25:10,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-14 16:25:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-02-14 16:25:10,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2019-02-14 16:25:10,210 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:25:10,210 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 86 states. [2019-02-14 16:25:10,210 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 86 states. [2019-02-14 16:25:10,211 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 86 states. [2019-02-14 16:25:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:10,212 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-14 16:25:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-14 16:25:10,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:10,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:10,212 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 87 states. [2019-02-14 16:25:10,213 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 87 states. [2019-02-14 16:25:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:10,214 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-14 16:25:10,214 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-14 16:25:10,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:10,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:10,214 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:25:10,214 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:25:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-02-14 16:25:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2019-02-14 16:25:10,216 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2019-02-14 16:25:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:25:10,216 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2019-02-14 16:25:10,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2019-02-14 16:25:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2019-02-14 16:25:10,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-02-14 16:25:10,217 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:25:10,217 INFO L402 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2019-02-14 16:25:10,217 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:25:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:25:10,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2019-02-14 16:25:10,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:25:10,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:10,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:25:10,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:10,218 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:25:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:25:12,659 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 16:25:12,660 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 16:25:12,661 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 16:25:12,662 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 16:25:12,663 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 16:25:12,664 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 16:25:12,669 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 16:25:12,670 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 16:25:12,670 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 16:25:12,671 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 16:25:12,671 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 16:25:12,672 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 16:25:12,673 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 16:25:12,674 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 16:25:12,674 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 16:25:12,676 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 16:25:12,676 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 16:25:12,677 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 16:25:12,678 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 16:25:12,679 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 16:25:12,680 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 16:25:12,681 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 16:25:12,682 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 16:25:12,683 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 16:25:12,683 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 16:25:12,684 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 16:25:12,685 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 16:25:12,686 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 16:25:12,687 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 16:25:12,688 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 16:25:12,689 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 16:25:12,690 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 16:25:12,690 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 16:25:12,692 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 16:25:12,692 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 16:25:12,693 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 16:25:12,694 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 16:25:12,695 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 16:25:12,696 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 16:25:12,697 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 16:25:12,698 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 16:25:12,699 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 16:25:12,699 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 16:25:12,700 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 16:25:12,701 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 16:25:12,702 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 16:25:12,703 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 16:25:12,704 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 16:25:12,705 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 16:25:12,706 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 16:25:12,707 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 16:25:12,708 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 16:25:12,708 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 16:25:12,709 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 16:25:12,710 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 16:25:12,711 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 16:25:12,712 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 16:25:12,713 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 16:25:12,714 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 16:25:12,715 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 16:25:12,715 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 16:25:12,716 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 16:25:12,717 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 16:25:12,718 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 16:25:12,719 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 16:25:12,720 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 16:25:12,721 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 16:25:12,722 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 16:25:12,723 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 16:25:12,724 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 16:25:12,724 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 16:25:12,725 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 16:25:12,726 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 16:25:12,727 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 16:25:12,728 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 16:25:12,729 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 16:25:12,730 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 16:25:12,731 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 16:25:12,731 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 16:25:12,732 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 16:25:12,733 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 16:25:12,734 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 16:25:12,735 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 16:25:12,736 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 16:25:12,737 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 16:25:12,766 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 16:25:12,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:25:12,767 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:25:12,767 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:25:12,767 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:25:12,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:25:12,767 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 16:25:12,775 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:25:12,775 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:25:13,051 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2019-02-14 16:25:13,051 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:25:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:25:13,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:25:13,083 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 16:25:13,085 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:25:13,092 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:25:13,092 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:25:13,093 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:25:13,093 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 16:25:13,094 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:25:16,345 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 16:25:16,347 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:25:16,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:25:16,354 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:25:16,356 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:25:16,356 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 16:25:16,357 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 164 .cse0) (not (= 164 .cse0)) (<= main_i 168))) [2019-02-14 16:25:16,412 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 16:25:16,413 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 16:25:16,414 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 16:25:16,414 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 16:25:16,415 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 16:25:16,416 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 16:25:16,416 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 16:25:16,417 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 16:25:16,431 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 16:25:16,431 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 16:25:16,432 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 16:25:16,432 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 16:25:16,433 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 16:25:16,433 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 16:25:16,434 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 16:25:16,434 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 16:25:16,435 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 16:25:16,435 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 16:25:16,436 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 16:25:16,437 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 16:25:16,437 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 16:25:16,438 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 16:25:16,439 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 16:25:16,439 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 16:25:16,440 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 16:25:16,441 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 16:25:16,441 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 16:25:16,442 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 16:25:16,443 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 16:25:16,443 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 16:25:16,444 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 16:25:16,445 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 16:25:16,445 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 16:25:16,446 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 16:25:16,447 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 16:25:16,447 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 16:25:16,448 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 16:25:16,449 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 16:25:16,449 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 16:25:16,450 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 16:25:16,451 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 16:25:16,452 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 16:25:16,452 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 16:25:16,453 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 16:25:16,454 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 16:25:16,454 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 16:25:16,455 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 16:25:16,456 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 16:25:16,456 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 16:25:16,457 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 16:25:16,458 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 16:25:16,458 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 16:25:16,459 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 16:25:16,460 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 16:25:16,460 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 16:25:16,461 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 16:25:16,462 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 16:25:16,463 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 16:25:16,463 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 16:25:16,464 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 16:25:16,465 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 16:25:16,465 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 16:25:16,466 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 16:25:16,467 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 16:25:16,467 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 16:25:16,468 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 16:25:16,469 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 16:25:16,469 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 16:25:16,470 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 16:25:16,471 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 16:25:16,472 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 16:25:16,472 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 16:25:16,473 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 16:25:16,474 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 16:25:16,474 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 16:25:16,475 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 16:25:16,476 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 16:25:16,476 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 16:25:16,477 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 16:25:16,478 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 16:25:16,484 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 16:25:16,485 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 16:25:16,485 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 16:25:16,486 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 16:25:16,486 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 16:25:16,502 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 16:25:16,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:25:21,699 INFO L273 TraceCheckUtils]: 84: Hoare triple {23178#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-14 16:25:21,700 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 16:25:21,701 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 16:25:21,702 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 16:25:21,703 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 16:25:21,704 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 16:25:21,704 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 16:25:21,705 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 16:25:21,706 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 16:25:21,707 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 16:25:21,707 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 16:25:21,709 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 16:25:21,709 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 16:25:21,710 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 16:25:21,711 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 16:25:21,712 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 16:25:21,712 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 16:25:21,713 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 16:25:21,714 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 16:25:21,715 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 16:25:21,715 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 16:25:21,716 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 16:25:21,717 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 16:25:21,718 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 16:25:21,718 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 16:25:21,720 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 16:25:21,720 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 16:25:21,721 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 16:25:21,722 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 16:25:21,723 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 16:25:21,723 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 16:25:21,724 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 16:25:21,725 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 16:25:21,726 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 16:25:21,726 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 16:25:21,727 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 16:25:21,728 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 16:25:21,729 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 16:25:21,730 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 16:25:21,731 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 16:25:21,731 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 16:25:21,732 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 16:25:21,733 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 16:25:21,734 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 16:25:21,734 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 16:25:21,735 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 16:25:21,736 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 16:25:21,737 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 16:25:21,737 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 16:25:21,738 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 16:25:21,754 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 16:25:21,756 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 16:25:21,756 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 16:25:21,757 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 16:25:21,757 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 16:25:21,758 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 16:25:21,758 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 16:25:21,759 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 16:25:21,760 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 16:25:21,761 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 16:25:21,761 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 16:25:21,762 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 16:25:21,763 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 16:25:21,764 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 16:25:21,764 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 16:25:21,765 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 16:25:21,766 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 16:25:21,767 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 16:25:21,768 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 16:25:21,769 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 16:25:21,769 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 16:25:21,770 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 16:25:21,771 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 16:25:21,772 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 16:25:21,772 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 16:25:21,773 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 16:25:21,774 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 16:25:21,775 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 16:25:21,776 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 16:25:21,777 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 16:25:21,777 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 16:25:21,778 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 16:25:21,779 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 16:25:21,780 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 16:25:21,781 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 16:25:21,807 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 16:25:21,825 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:25:21,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 131 [2019-02-14 16:25:21,826 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:25:21,826 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-14 16:25:21,826 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:25:21,826 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2019-02-14 16:25:22,059 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 16:25:22,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-02-14 16:25:22,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-02-14 16:25:22,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-14 16:25:22,060 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 89 states. [2019-02-14 16:25:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:34,461 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2019-02-14 16:25:34,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-02-14 16:25:34,462 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-14 16:25:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:25:34,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-14 16:25:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-14 16:25:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-14 16:25:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-14 16:25:34,464 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 90 transitions. [2019-02-14 16:25:34,579 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 16:25:34,580 INFO L225 Difference]: With dead ends: 90 [2019-02-14 16:25:34,580 INFO L226 Difference]: Without dead ends: 89 [2019-02-14 16:25:34,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3956 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-14 16:25:34,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-02-14 16:25:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2019-02-14 16:25:34,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:25:34,681 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 88 states. [2019-02-14 16:25:34,681 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 88 states. [2019-02-14 16:25:34,682 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 88 states. [2019-02-14 16:25:34,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:34,683 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-14 16:25:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-14 16:25:34,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:34,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:34,684 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 89 states. [2019-02-14 16:25:34,684 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 89 states. [2019-02-14 16:25:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:34,685 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-14 16:25:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-14 16:25:34,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:34,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:34,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:25:34,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:25:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-02-14 16:25:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2019-02-14 16:25:34,686 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2019-02-14 16:25:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:25:34,686 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2019-02-14 16:25:34,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-02-14 16:25:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2019-02-14 16:25:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-02-14 16:25:34,687 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:25:34,687 INFO L402 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2019-02-14 16:25:34,687 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:25:34,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:25:34,687 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2019-02-14 16:25:34,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:25:34,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:34,688 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:25:34,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:34,688 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:25:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:25:37,452 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 16:25:37,454 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 16:25:37,454 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 16:25:37,455 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 16:25:37,456 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 16:25:37,457 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 16:25:37,458 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 16:25:37,459 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 16:25:37,460 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 16:25:37,461 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 16:25:37,462 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 16:25:37,463 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 16:25:37,463 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 16:25:37,464 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 16:25:37,465 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 16:25:37,466 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 16:25:37,467 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 16:25:37,468 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 16:25:37,469 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 16:25:37,470 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 16:25:37,470 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 16:25:37,471 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 16:25:37,472 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 16:25:37,473 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 16:25:37,474 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 16:25:37,475 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 16:25:37,476 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 16:25:37,477 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 16:25:37,477 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 16:25:37,479 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 16:25:37,479 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 16:25:37,480 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 16:25:37,481 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 16:25:37,482 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 16:25:37,483 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 16:25:37,484 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 16:25:37,485 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 16:25:37,486 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 16:25:37,486 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 16:25:37,487 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 16:25:37,488 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 16:25:37,489 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 16:25:37,490 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 16:25:37,491 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 16:25:37,492 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 16:25:37,493 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 16:25:37,493 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 16:25:37,494 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 16:25:37,495 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 16:25:37,496 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 16:25:37,497 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 16:25:37,498 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 16:25:37,499 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 16:25:37,500 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 16:25:37,500 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 16:25:37,501 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 16:25:37,502 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 16:25:37,503 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 16:25:37,504 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 16:25:37,505 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 16:25:37,506 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 16:25:37,507 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 16:25:37,508 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 16:25:37,509 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 16:25:37,509 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 16:25:37,510 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 16:25:37,511 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 16:25:37,512 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 16:25:37,513 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 16:25:37,514 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 16:25:37,515 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 16:25:37,516 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 16:25:37,516 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 16:25:37,517 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 16:25:37,518 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 16:25:37,519 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 16:25:37,520 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 16:25:37,521 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 16:25:37,522 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 16:25:37,523 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 16:25:37,524 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 16:25:37,525 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 16:25:37,525 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 16:25:37,527 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 16:25:37,528 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 16:25:37,529 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 16:25:37,529 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 16:25:37,564 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 16:25:37,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:25:37,565 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:25:37,565 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:25:37,565 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:25:37,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:25:37,565 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 16:25:37,573 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:25:37,573 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:25:37,597 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:25:37,597 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:25:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:25:37,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:25:37,632 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 16:25:37,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:25:37,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:25:37,645 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:25:37,647 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:25:37,647 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 16:25:37,647 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:25:40,927 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 16:25:40,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:25:40,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:25:40,936 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:25:40,939 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:25:40,939 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 16:25:40,939 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 168 .cse0) (not (= 168 .cse0)) (<= main_i 172))) [2019-02-14 16:25:40,993 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 16:25:40,993 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 16:25:40,994 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 16:25:40,995 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 16:25:40,995 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 16:25:40,996 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 16:25:40,997 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 16:25:41,019 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 16:25:41,038 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 16:25:41,040 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 16:25:41,040 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 16:25:41,041 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 16:25:41,041 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 16:25:41,042 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 16:25:41,042 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 16:25:41,043 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 16:25:41,043 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 16:25:41,043 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 16:25:41,044 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 16:25:41,045 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 16:25:41,045 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 16:25:41,046 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 16:25:41,047 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 16:25:41,047 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 16:25:41,048 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 16:25:41,049 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 16:25:41,049 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 16:25:41,050 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 16:25:41,051 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 16:25:41,051 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 16:25:41,052 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 16:25:41,053 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 16:25:41,054 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 16:25:41,054 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 16:25:41,055 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 16:25:41,056 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 16:25:41,056 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 16:25:41,057 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 16:25:41,058 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 16:25:41,058 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 16:25:41,059 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 16:25:41,060 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 16:25:41,061 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 16:25:41,061 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 16:25:41,062 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 16:25:41,063 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 16:25:41,063 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 16:25:41,064 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 16:25:41,065 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 16:25:41,065 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 16:25:41,066 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 16:25:41,067 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 16:25:41,067 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 16:25:41,068 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 16:25:41,069 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 16:25:41,070 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 16:25:41,070 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 16:25:41,071 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 16:25:41,072 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 16:25:41,072 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 16:25:41,073 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 16:25:41,074 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 16:25:41,074 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 16:25:41,075 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 16:25:41,076 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 16:25:41,076 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 16:25:41,077 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 16:25:41,078 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 16:25:41,078 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 16:25:41,079 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 16:25:41,080 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 16:25:41,081 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 16:25:41,081 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 16:25:41,082 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 16:25:41,083 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 16:25:41,084 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 16:25:41,084 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 16:25:41,085 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 16:25:41,086 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 16:25:41,086 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 16:25:41,087 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 16:25:41,088 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 16:25:41,089 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 16:25:41,089 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 16:25:41,090 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 16:25:41,091 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 16:25:41,092 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 16:25:41,114 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 16:25:41,114 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:25:46,693 INFO L273 TraceCheckUtils]: 86: Hoare triple {24268#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-14 16:25:46,693 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 16:25:46,695 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 16:25:46,696 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 16:25:46,697 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 16:25:46,698 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 16:25:46,699 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 16:25:46,700 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 16:25:46,701 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 16:25:46,702 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 16:25:46,703 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 16:25:46,704 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 16:25:46,705 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 16:25:46,706 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 16:25:46,707 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 16:25:46,708 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 16:25:46,709 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 16:25:46,710 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 16:25:46,711 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 16:25:46,712 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 16:25:46,713 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 16:25:46,714 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 16:25:46,715 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 16:25:46,716 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 16:25:46,717 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 16:25:46,718 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 16:25:46,719 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 16:25:46,720 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 16:25:46,721 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 16:25:46,722 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 16:25:46,723 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 16:25:46,724 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 16:25:46,725 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 16:25:46,726 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 16:25:46,727 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 16:25:46,728 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 16:25:46,729 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 16:25:46,730 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 16:25:46,731 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 16:25:46,732 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 16:25:46,733 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 16:25:46,734 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 16:25:46,735 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 16:25:46,736 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 16:25:46,737 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 16:25:46,738 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 16:25:46,739 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 16:25:46,740 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 16:25:46,750 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 16:25:46,751 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 16:25:46,752 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 16:25:46,752 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 16:25:46,754 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 16:25:46,754 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 16:25:46,756 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 16:25:46,757 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 16:25:46,758 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 16:25:46,758 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 16:25:46,760 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 16:25:46,761 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 16:25:46,762 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 16:25:46,763 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 16:25:46,764 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 16:25:46,765 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 16:25:46,766 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 16:25:46,767 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 16:25:46,768 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 16:25:46,769 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 16:25:46,770 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 16:25:46,771 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 16:25:46,772 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 16:25:46,773 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 16:25:46,774 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 16:25:46,775 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 16:25:46,776 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 16:25:46,777 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 16:25:46,778 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 16:25:46,779 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 16:25:46,780 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 16:25:46,781 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 16:25:46,782 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 16:25:46,784 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 16:25:46,784 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 16:25:46,786 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 16:25:46,786 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 16:25:46,788 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 16:25:46,790 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 16:25:46,817 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 16:25:46,835 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:25:46,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 134 [2019-02-14 16:25:46,835 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:25:46,836 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-14 16:25:46,836 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:25:46,836 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 91 states. [2019-02-14 16:25:47,095 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 16:25:47,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-02-14 16:25:47,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-02-14 16:25:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-14 16:25:47,097 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 91 states. [2019-02-14 16:25:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:59,200 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2019-02-14 16:25:59,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-02-14 16:25:59,200 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-14 16:25:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:25:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-14 16:25:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-14 16:25:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-14 16:25:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-14 16:25:59,203 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 92 transitions. [2019-02-14 16:25:59,302 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 16:25:59,303 INFO L225 Difference]: With dead ends: 92 [2019-02-14 16:25:59,303 INFO L226 Difference]: Without dead ends: 91 [2019-02-14 16:25:59,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4136 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-14 16:25:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-02-14 16:25:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-02-14 16:25:59,400 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:25:59,400 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand 90 states. [2019-02-14 16:25:59,400 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand 90 states. [2019-02-14 16:25:59,400 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 90 states. [2019-02-14 16:25:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:59,402 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-14 16:25:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-14 16:25:59,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:59,402 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:59,403 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 91 states. [2019-02-14 16:25:59,403 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 91 states. [2019-02-14 16:25:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:25:59,404 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-14 16:25:59,404 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-14 16:25:59,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:25:59,405 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:25:59,405 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:25:59,405 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:25:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-02-14 16:25:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2019-02-14 16:25:59,407 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2019-02-14 16:25:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:25:59,407 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2019-02-14 16:25:59,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-02-14 16:25:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2019-02-14 16:25:59,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-02-14 16:25:59,407 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:25:59,407 INFO L402 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2019-02-14 16:25:59,407 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:25:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:25:59,408 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2019-02-14 16:25:59,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:25:59,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:59,408 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:25:59,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:25:59,409 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:25:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:01,972 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 16:26:01,974 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 16:26:01,974 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 16:26:01,975 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 16:26:01,976 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 16:26:01,977 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 16:26:01,978 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 16:26:01,979 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 16:26:01,980 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 16:26:01,981 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 16:26:01,982 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 16:26:01,983 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 16:26:01,983 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 16:26:01,984 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 16:26:01,985 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 16:26:01,986 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 16:26:01,987 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 16:26:01,988 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 16:26:01,989 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 16:26:01,990 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 16:26:01,991 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 16:26:01,992 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 16:26:01,992 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 16:26:01,993 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 16:26:01,994 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 16:26:01,995 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 16:26:01,996 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 16:26:01,997 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 16:26:01,998 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 16:26:01,999 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 16:26:02,000 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 16:26:02,001 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 16:26:02,002 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 16:26:02,003 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 16:26:02,004 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 16:26:02,005 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 16:26:02,006 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 16:26:02,007 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 16:26:02,007 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 16:26:02,008 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 16:26:02,009 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 16:26:02,010 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 16:26:02,011 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 16:26:02,012 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 16:26:02,013 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 16:26:02,014 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 16:26:02,014 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 16:26:02,016 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 16:26:02,022 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 16:26:02,023 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 16:26:02,023 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 16:26:02,028 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 16:26:02,028 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 16:26:02,030 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 16:26:02,033 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 16:26:02,033 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 16:26:02,035 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 16:26:02,035 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 16:26:02,037 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 16:26:02,038 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 16:26:02,039 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 16:26:02,040 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 16:26:02,041 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 16:26:02,043 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 16:26:02,044 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 16:26:02,045 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 16:26:02,046 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 16:26:02,047 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 16:26:02,048 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 16:26:02,049 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 16:26:02,050 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 16:26:02,051 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 16:26:02,052 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 16:26:02,053 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 16:26:02,054 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 16:26:02,055 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 16:26:02,056 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 16:26:02,057 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 16:26:02,058 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 16:26:02,059 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 16:26:02,060 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 16:26:02,061 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 16:26:02,062 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 16:26:02,063 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 16:26:02,064 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 16:26:02,065 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 16:26:02,066 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 16:26:02,067 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 16:26:02,067 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 16:26:02,101 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 16:26:02,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:02,101 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:26:02,101 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:26:02,102 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:26:02,102 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:02,102 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 16:26:02,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:26:02,110 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:26:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:02,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:26:02,161 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 16:26:02,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:26:02,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:26:02,173 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:26:02,175 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:26:02,175 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 16:26:02,175 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:26:05,430 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 16:26:05,433 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:26:05,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:26:05,438 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:26:05,444 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:26:05,445 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 16:26:05,445 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 176) (<= 172 .cse0) (not (= 172 .cse0)))) [2019-02-14 16:26:05,498 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 16:26:05,499 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 16:26:05,499 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 16:26:05,500 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 16:26:05,500 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 16:26:05,501 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 16:26:05,502 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 16:26:05,502 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 16:26:05,503 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 16:26:05,504 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 16:26:05,504 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 16:26:05,505 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 16:26:05,506 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 16:26:05,506 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 16:26:05,507 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 16:26:05,508 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 16:26:05,508 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 16:26:05,509 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 16:26:05,510 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 16:26:05,510 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 16:26:05,511 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 16:26:05,512 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 16:26:05,512 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 16:26:05,513 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 16:26:05,514 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 16:26:05,514 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 16:26:05,515 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 16:26:05,516 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 16:26:05,516 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 16:26:05,517 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 16:26:05,518 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 16:26:05,518 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 16:26:05,519 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 16:26:05,520 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 16:26:05,520 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 16:26:05,521 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 16:26:05,522 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 16:26:05,522 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 16:26:05,523 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 16:26:05,524 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 16:26:05,524 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 16:26:05,525 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 16:26:05,526 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 16:26:05,526 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 16:26:05,527 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 16:26:05,528 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 16:26:05,528 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 16:26:05,529 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 16:26:05,530 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 16:26:05,530 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 16:26:05,531 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 16:26:05,532 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 16:26:05,532 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 16:26:05,533 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 16:26:05,534 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 16:26:05,534 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 16:26:05,535 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 16:26:05,536 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 16:26:05,536 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 16:26:05,537 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 16:26:05,538 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 16:26:05,538 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 16:26:05,539 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 16:26:05,540 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 16:26:05,541 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 16:26:05,541 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 16:26:05,542 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 16:26:05,543 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 16:26:05,543 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 16:26:05,544 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 16:26:05,545 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 16:26:05,546 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 16:26:05,546 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 16:26:05,547 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 16:26:05,548 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 16:26:05,548 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 16:26:05,549 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 16:26:05,550 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 16:26:05,550 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 16:26:05,551 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 16:26:05,552 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 16:26:05,552 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 16:26:05,553 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 16:26:05,554 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 16:26:05,554 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 16:26:05,555 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 16:26:05,556 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 16:26:05,556 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 16:26:05,557 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 16:26:05,575 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 16:26:05,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:26:11,315 INFO L273 TraceCheckUtils]: 88: Hoare triple {25383#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-14 16:26:11,316 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 16:26:11,317 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 16:26:11,317 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 16:26:11,318 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 16:26:11,318 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 16:26:11,319 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 16:26:11,320 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 16:26:11,321 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 16:26:11,322 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 16:26:11,322 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 16:26:11,323 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 16:26:11,324 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 16:26:11,325 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 16:26:11,326 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 16:26:11,327 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 16:26:11,327 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 16:26:11,328 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 16:26:11,329 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 16:26:11,330 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 16:26:11,331 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 16:26:11,332 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 16:26:11,332 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 16:26:11,333 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 16:26:11,334 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 16:26:11,335 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 16:26:11,336 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 16:26:11,337 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 16:26:11,337 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 16:26:11,338 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 16:26:11,339 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 16:26:11,340 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 16:26:11,340 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 16:26:11,341 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 16:26:11,342 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 16:26:11,343 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 16:26:11,344 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 16:26:11,345 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 16:26:11,345 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 16:26:11,346 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 16:26:11,347 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 16:26:11,348 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 16:26:11,348 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 16:26:11,349 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 16:26:11,350 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 16:26:11,351 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 16:26:11,351 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 16:26:11,353 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 16:26:11,353 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 16:26:11,354 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 16:26:11,355 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 16:26:11,356 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 16:26:11,356 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 16:26:11,357 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 16:26:11,358 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 16:26:11,359 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 16:26:11,360 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 16:26:11,361 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 16:26:11,361 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 16:26:11,362 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 16:26:11,363 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 16:26:11,364 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 16:26:11,364 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 16:26:11,365 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 16:26:11,366 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 16:26:11,367 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 16:26:11,368 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 16:26:11,369 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 16:26:11,369 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 16:26:11,370 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 16:26:11,371 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 16:26:11,372 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 16:26:11,372 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 16:26:11,374 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 16:26:11,374 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 16:26:11,375 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 16:26:11,376 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 16:26:11,377 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 16:26:11,377 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 16:26:11,378 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 16:26:11,379 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 16:26:11,380 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 16:26:11,380 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 16:26:11,381 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 16:26:11,382 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 16:26:11,383 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 16:26:11,384 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 16:26:11,385 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 16:26:11,386 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 16:26:11,419 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 16:26:11,452 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:26:11,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 137 [2019-02-14 16:26:11,452 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:26:11,453 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-14 16:26:11,453 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:26:11,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 93 states. [2019-02-14 16:26:11,754 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 16:26:11,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2019-02-14 16:26:11,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2019-02-14 16:26:11,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-14 16:26:11,756 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 93 states. [2019-02-14 16:26:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:26,770 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2019-02-14 16:26:26,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-02-14 16:26:26,771 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-14 16:26:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:26:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-14 16:26:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-14 16:26:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-14 16:26:26,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-14 16:26:26,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 48 states and 94 transitions. [2019-02-14 16:26:26,877 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 16:26:26,879 INFO L225 Difference]: With dead ends: 94 [2019-02-14 16:26:26,879 INFO L226 Difference]: Without dead ends: 93 [2019-02-14 16:26:26,880 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4320 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-14 16:26:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-02-14 16:26:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2019-02-14 16:26:26,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:26:26,983 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 92 states. [2019-02-14 16:26:26,984 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 92 states. [2019-02-14 16:26:26,984 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 92 states. [2019-02-14 16:26:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:26,985 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-14 16:26:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-14 16:26:26,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:26:26,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:26:26,986 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 93 states. [2019-02-14 16:26:26,986 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 93 states. [2019-02-14 16:26:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:26,992 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-14 16:26:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-14 16:26:26,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:26:26,992 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:26:26,992 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:26:26,993 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:26:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-02-14 16:26:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2019-02-14 16:26:26,994 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2019-02-14 16:26:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:26:26,994 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2019-02-14 16:26:26,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2019-02-14 16:26:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2019-02-14 16:26:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-02-14 16:26:26,995 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:26:26,995 INFO L402 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2019-02-14 16:26:26,995 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:26:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:26:26,995 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2019-02-14 16:26:26,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:26:26,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:26:26,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:26:26,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:26:26,996 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:26:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:29,941 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 16:26:29,942 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 16:26:29,943 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 16:26:29,944 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 16:26:29,945 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 16:26:29,946 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 16:26:29,946 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 16:26:29,947 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 16:26:29,948 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 16:26:29,949 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 16:26:29,950 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 16:26:29,951 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 16:26:29,952 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 16:26:29,953 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 16:26:29,954 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 16:26:29,955 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 16:26:29,955 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 16:26:29,956 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 16:26:29,957 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 16:26:29,958 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 16:26:29,959 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 16:26:29,960 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 16:26:29,961 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 16:26:29,962 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 16:26:29,963 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 16:26:29,964 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 16:26:29,967 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 16:26:29,968 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 16:26:29,968 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 16:26:29,969 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 16:26:29,969 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 16:26:29,970 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 16:26:29,970 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 16:26:29,971 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 16:26:29,972 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 16:26:29,973 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 16:26:29,973 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 16:26:29,974 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 16:26:29,975 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 16:26:29,976 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 16:26:29,977 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 16:26:29,978 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 16:26:29,979 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 16:26:29,980 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 16:26:29,980 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 16:26:29,981 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 16:26:29,982 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 16:26:29,983 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 16:26:29,984 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 16:26:29,985 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 16:26:29,986 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 16:26:29,987 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 16:26:29,988 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 16:26:29,989 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 16:26:29,989 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 16:26:29,990 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 16:26:29,991 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 16:26:29,992 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 16:26:29,993 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 16:26:29,994 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 16:26:29,995 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 16:26:29,996 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 16:26:29,997 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 16:26:29,998 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 16:26:29,998 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 16:26:29,999 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 16:26:30,000 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 16:26:30,001 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 16:26:30,002 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 16:26:30,003 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 16:26:30,004 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 16:26:30,005 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 16:26:30,005 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 16:26:30,007 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 16:26:30,007 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 16:26:30,008 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 16:26:30,009 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 16:26:30,010 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 16:26:30,011 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 16:26:30,012 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 16:26:30,013 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 16:26:30,014 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 16:26:30,014 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 16:26:30,015 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 16:26:30,016 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 16:26:30,017 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 16:26:30,018 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 16:26:30,019 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 16:26:30,020 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 16:26:30,021 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 16:26:30,022 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 16:26:30,057 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 16:26:30,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:30,058 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:26:30,058 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:26:30,058 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:26:30,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:30,058 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 16:26:30,067 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:26:30,067 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:26:30,130 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2019-02-14 16:26:30,130 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:26:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:30,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:26:30,165 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 16:26:30,175 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:26:30,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:26:30,185 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:26:30,187 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:26:30,187 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 16:26:30,187 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:26:33,984 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 16:26:33,986 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:26:33,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:26:33,992 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:26:33,995 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:26:33,995 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 16:26:33,995 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 176 .cse0)) (<= main_i 180) (<= 176 .cse0))) [2019-02-14 16:26:34,049 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 16:26:34,050 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 16:26:34,050 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 16:26:34,051 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 16:26:34,051 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 16:26:34,052 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 16:26:34,053 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 16:26:34,053 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 16:26:34,054 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 16:26:34,055 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 16:26:34,055 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 16:26:34,056 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 16:26:34,057 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 16:26:34,057 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 16:26:34,058 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 16:26:34,059 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 16:26:34,059 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 16:26:34,060 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 16:26:34,061 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 16:26:34,061 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 16:26:34,062 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 16:26:34,063 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 16:26:34,064 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 16:26:34,064 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 16:26:34,065 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 16:26:34,066 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 16:26:34,066 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 16:26:34,067 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 16:26:34,068 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 16:26:34,068 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 16:26:34,069 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 16:26:34,070 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 16:26:34,070 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 16:26:34,071 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 16:26:34,072 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 16:26:34,072 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 16:26:34,073 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 16:26:34,074 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 16:26:34,074 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 16:26:34,075 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 16:26:34,076 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 16:26:34,076 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 16:26:34,077 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 16:26:34,078 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 16:26:34,078 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 16:26:34,079 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 16:26:34,080 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 16:26:34,080 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 16:26:34,081 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 16:26:34,082 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 16:26:34,082 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 16:26:34,083 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 16:26:34,084 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 16:26:34,084 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 16:26:34,085 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 16:26:34,086 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 16:26:34,086 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 16:26:34,087 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 16:26:34,088 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 16:26:34,088 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 16:26:34,089 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 16:26:34,090 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 16:26:34,090 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 16:26:34,091 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 16:26:34,092 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 16:26:34,093 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 16:26:34,093 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 16:26:34,094 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 16:26:34,095 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 16:26:34,095 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 16:26:34,096 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 16:26:34,097 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 16:26:34,098 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 16:26:34,098 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 16:26:34,099 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 16:26:34,100 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 16:26:34,100 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 16:26:34,101 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 16:26:34,102 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 16:26:34,102 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 16:26:34,103 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 16:26:34,104 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 16:26:34,104 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 16:26:34,105 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 16:26:34,106 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 16:26:34,106 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 16:26:34,107 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 16:26:34,108 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 16:26:34,109 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 16:26:34,109 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 16:26:34,110 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 16:26:34,129 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 16:26:34,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:26:40,134 INFO L273 TraceCheckUtils]: 90: Hoare triple {26523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-14 16:26:40,135 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 16:26:40,136 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 16:26:40,137 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 16:26:40,137 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 16:26:40,138 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 16:26:40,138 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 16:26:40,139 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 16:26:40,140 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 16:26:40,141 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 16:26:40,141 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 16:26:40,142 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 16:26:40,143 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 16:26:40,144 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 16:26:40,144 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 16:26:40,145 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 16:26:40,146 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 16:26:40,147 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 16:26:40,148 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 16:26:40,149 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 16:26:40,149 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 16:26:40,150 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 16:26:40,151 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 16:26:40,152 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 16:26:40,152 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 16:26:40,153 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 16:26:40,154 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 16:26:40,155 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 16:26:40,155 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 16:26:40,156 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 16:26:40,157 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 16:26:40,158 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 16:26:40,159 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 16:26:40,160 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 16:26:40,160 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 16:26:40,161 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 16:26:40,162 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 16:26:40,163 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 16:26:40,163 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 16:26:40,164 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 16:26:40,165 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 16:26:40,166 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 16:26:40,166 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 16:26:40,167 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 16:26:40,168 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 16:26:40,169 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 16:26:40,169 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 16:26:40,171 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 16:26:40,171 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 16:26:40,172 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 16:26:40,173 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 16:26:40,174 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 16:26:40,174 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 16:26:40,175 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 16:26:40,176 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 16:26:40,177 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 16:26:40,177 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 16:26:40,178 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 16:26:40,179 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 16:26:40,180 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 16:26:40,180 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 16:26:40,181 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 16:26:40,182 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 16:26:40,183 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 16:26:40,184 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 16:26:40,185 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 16:26:40,185 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 16:26:40,186 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 16:26:40,187 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 16:26:40,188 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 16:26:40,188 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 16:26:40,189 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 16:26:40,190 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 16:26:40,191 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 16:26:40,191 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 16:26:40,192 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 16:26:40,193 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 16:26:40,194 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 16:26:40,195 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 16:26:40,196 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 16:26:40,196 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 16:26:40,197 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 16:26:40,198 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 16:26:40,199 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 16:26:40,199 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 16:26:40,200 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 16:26:40,201 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 16:26:40,202 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 16:26:40,202 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 16:26:40,203 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 16:26:40,204 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 16:26:40,238 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 16:26:40,257 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:26:40,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 140 [2019-02-14 16:26:40,257 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:26:40,257 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-14 16:26:40,257 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:26:40,258 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2019-02-14 16:26:40,473 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 16:26:40,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-02-14 16:26:40,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-02-14 16:26:40,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-02-14 16:26:40,475 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 95 states. [2019-02-14 16:26:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:54,057 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2019-02-14 16:26:54,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-02-14 16:26:54,058 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-14 16:26:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:26:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-14 16:26:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-14 16:26:54,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-14 16:26:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-14 16:26:54,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 96 transitions. [2019-02-14 16:26:54,163 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 16:26:54,165 INFO L225 Difference]: With dead ends: 96 [2019-02-14 16:26:54,165 INFO L226 Difference]: Without dead ends: 95 [2019-02-14 16:26:54,166 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 16:26:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-02-14 16:26:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-02-14 16:26:54,268 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:26:54,268 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 94 states. [2019-02-14 16:26:54,268 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 94 states. [2019-02-14 16:26:54,268 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 94 states. [2019-02-14 16:26:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:54,270 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-14 16:26:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-14 16:26:54,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:26:54,270 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:26:54,270 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 95 states. [2019-02-14 16:26:54,270 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 95 states. [2019-02-14 16:26:54,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:26:54,271 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-14 16:26:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-14 16:26:54,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:26:54,272 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:26:54,272 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:26:54,272 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:26:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-02-14 16:26:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2019-02-14 16:26:54,273 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2019-02-14 16:26:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:26:54,273 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2019-02-14 16:26:54,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-02-14 16:26:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2019-02-14 16:26:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-02-14 16:26:54,274 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:26:54,274 INFO L402 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2019-02-14 16:26:54,274 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:26:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:26:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2019-02-14 16:26:54,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:26:54,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:26:54,275 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:26:54,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:26:54,276 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:26:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:57,020 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 16:26:57,021 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 16:26:57,022 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 16:26:57,022 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 16:26:57,023 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 16:26:57,024 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 16:26:57,024 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 16:26:57,025 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 16:26:57,026 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 16:26:57,027 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 16:26:57,028 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 16:26:57,029 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 16:26:57,030 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 16:26:57,031 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 16:26:57,031 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 16:26:57,032 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 16:26:57,033 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 16:26:57,034 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 16:26:57,035 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 16:26:57,036 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 16:26:57,037 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 16:26:57,038 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 16:26:57,038 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 16:26:57,039 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 16:26:57,040 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 16:26:57,041 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 16:26:57,042 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 16:26:57,043 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 16:26:57,044 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 16:26:57,045 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 16:26:57,046 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 16:26:57,047 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 16:26:57,047 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 16:26:57,048 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 16:26:57,049 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 16:26:57,050 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 16:26:57,051 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 16:26:57,052 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 16:26:57,053 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 16:26:57,054 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 16:26:57,054 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 16:26:57,055 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 16:26:57,056 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 16:26:57,057 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 16:26:57,058 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 16:26:57,059 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 16:26:57,060 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 16:26:57,061 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 16:26:57,061 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 16:26:57,063 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 16:26:57,063 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 16:26:57,064 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 16:26:57,065 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 16:26:57,066 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 16:26:57,067 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 16:26:57,068 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 16:26:57,069 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 16:26:57,070 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 16:26:57,070 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 16:26:57,071 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 16:26:57,072 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 16:26:57,073 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 16:26:57,074 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 16:26:57,075 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 16:26:57,076 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 16:26:57,077 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 16:26:57,078 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 16:26:57,079 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 16:26:57,079 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 16:26:57,080 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 16:26:57,081 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 16:26:57,082 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 16:26:57,083 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 16:26:57,084 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 16:26:57,085 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 16:26:57,086 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 16:26:57,086 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 16:26:57,087 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 16:26:57,088 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 16:26:57,089 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 16:26:57,090 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 16:26:57,091 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 16:26:57,092 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 16:26:57,093 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 16:26:57,093 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 16:26:57,094 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 16:26:57,095 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 16:26:57,096 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 16:26:57,097 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 16:26:57,098 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 16:26:57,099 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 16:26:57,100 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 16:26:57,101 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 16:26:57,142 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 16:26:57,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:57,142 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:26:57,143 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:26:57,143 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:26:57,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:26:57,143 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 16:26:57,153 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:26:57,153 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:26:57,177 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:26:57,177 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:26:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:26:57,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:26:57,237 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-14 16:26:57,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:26:57,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:26:57,246 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:26:57,247 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:26:57,248 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 16:26:57,248 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:27:01,066 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 16:27:01,068 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:27:01,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:27:01,073 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:27:01,075 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:27:01,076 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 16:27:01,076 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 180 .cse0)))) [2019-02-14 16:27:01,132 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 16:27:01,133 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 16:27:01,133 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 16:27:01,134 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 16:27:01,134 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 16:27:01,135 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 16:27:01,135 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 16:27:01,136 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 16:27:01,136 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 16:27:01,137 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 16:27:01,138 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 16:27:01,138 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 16:27:01,139 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 16:27:01,140 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 16:27:01,140 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 16:27:01,141 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 16:27:01,142 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 16:27:01,142 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 16:27:01,143 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 16:27:01,144 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 16:27:01,144 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 16:27:01,145 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 16:27:01,146 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 16:27:01,146 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 16:27:01,147 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 16:27:01,148 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 16:27:01,148 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 16:27:01,149 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 16:27:01,150 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 16:27:01,150 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 16:27:01,151 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 16:27:01,152 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 16:27:01,152 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 16:27:01,153 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 16:27:01,154 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 16:27:01,154 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 16:27:01,155 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 16:27:01,156 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 16:27:01,156 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 16:27:01,157 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 16:27:01,158 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 16:27:01,158 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 16:27:01,159 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 16:27:01,160 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 16:27:01,161 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 16:27:01,161 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 16:27:01,162 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 16:27:01,163 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 16:27:01,163 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 16:27:01,164 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 16:27:01,165 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 16:27:01,165 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 16:27:01,166 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 16:27:01,167 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 16:27:01,167 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 16:27:01,168 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 16:27:01,169 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 16:27:01,169 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 16:27:01,170 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 16:27:01,171 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 16:27:01,171 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 16:27:01,172 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 16:27:01,173 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 16:27:01,173 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 16:27:01,174 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 16:27:01,175 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 16:27:01,175 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 16:27:01,176 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 16:27:01,177 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 16:27:01,178 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 16:27:01,178 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 16:27:01,179 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 16:27:01,180 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 16:27:01,180 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 16:27:01,181 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 16:27:01,182 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 16:27:01,182 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 16:27:01,183 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 16:27:01,184 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 16:27:01,184 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 16:27:01,185 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 16:27:01,186 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 16:27:01,186 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 16:27:01,187 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 16:27:01,188 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 16:27:01,188 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 16:27:01,189 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 16:27:01,190 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 16:27:01,190 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 16:27:01,191 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 16:27:01,192 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 16:27:01,193 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 16:27:01,193 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 16:27:01,217 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 16:27:01,217 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:27:07,476 INFO L273 TraceCheckUtils]: 92: Hoare triple {27688#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-14 16:27:07,477 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 16:27:07,477 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 16:27:07,478 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 16:27:07,478 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 16:27:07,479 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 16:27:07,479 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 16:27:07,480 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 16:27:07,481 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 16:27:07,482 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 16:27:07,482 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 16:27:07,483 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 16:27:07,484 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 16:27:07,485 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 16:27:07,485 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 16:27:07,487 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 16:27:07,487 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 16:27:07,488 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 16:27:07,489 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 16:27:07,490 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 16:27:07,490 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 16:27:07,491 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 16:27:07,492 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 16:27:07,493 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 16:27:07,493 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 16:27:07,495 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 16:27:07,495 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 16:27:07,496 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 16:27:07,497 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 16:27:07,498 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 16:27:07,498 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 16:27:07,500 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 16:27:07,500 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 16:27:07,501 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 16:27:07,502 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 16:27:07,503 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 16:27:07,503 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 16:27:07,505 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 16:27:07,505 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 16:27:07,506 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 16:27:07,507 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 16:27:07,508 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 16:27:07,508 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 16:27:07,509 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 16:27:07,510 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 16:27:07,511 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 16:27:07,511 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 16:27:07,512 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 16:27:07,513 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 16:27:07,514 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 16:27:07,515 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 16:27:07,516 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 16:27:07,516 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 16:27:07,518 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 16:27:07,518 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 16:27:07,519 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 16:27:07,520 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 16:27:07,521 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 16:27:07,521 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 16:27:07,523 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 16:27:07,523 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 16:27:07,524 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 16:27:07,525 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 16:27:07,526 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 16:27:07,526 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 16:27:07,527 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 16:27:07,528 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 16:27:07,529 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 16:27:07,530 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 16:27:07,531 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 16:27:07,531 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 16:27:07,532 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 16:27:07,533 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 16:27:07,534 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 16:27:07,534 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 16:27:07,535 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 16:27:07,536 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 16:27:07,537 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 16:27:07,537 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 16:27:07,539 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 16:27:07,539 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 16:27:07,540 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 16:27:07,541 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 16:27:07,542 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 16:27:07,543 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 16:27:07,544 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 16:27:07,544 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 16:27:07,545 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 16:27:07,546 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 16:27:07,547 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 16:27:07,548 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 16:27:07,549 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 16:27:07,550 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 16:27:07,580 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 16:27:07,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:27:07,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 143 [2019-02-14 16:27:07,599 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:27:07,600 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-14 16:27:07,600 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:27:07,600 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states. [2019-02-14 16:27:07,833 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 16:27:07,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2019-02-14 16:27:07,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2019-02-14 16:27:07,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-02-14 16:27:07,835 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 97 states. [2019-02-14 16:27:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:22,921 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2019-02-14 16:27:22,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-02-14 16:27:22,921 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-14 16:27:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:27:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-14 16:27:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-14 16:27:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-14 16:27:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-14 16:27:22,923 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 98 transitions. [2019-02-14 16:27:23,027 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 16:27:23,029 INFO L225 Difference]: With dead ends: 98 [2019-02-14 16:27:23,029 INFO L226 Difference]: Without dead ends: 97 [2019-02-14 16:27:23,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4700 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-02-14 16:27:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-02-14 16:27:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2019-02-14 16:27:23,134 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:27:23,135 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 96 states. [2019-02-14 16:27:23,135 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 96 states. [2019-02-14 16:27:23,135 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 96 states. [2019-02-14 16:27:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:23,136 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-14 16:27:23,136 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-14 16:27:23,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:27:23,137 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:27:23,137 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 97 states. [2019-02-14 16:27:23,137 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 97 states. [2019-02-14 16:27:23,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:23,138 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-14 16:27:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-14 16:27:23,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:27:23,139 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:27:23,139 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:27:23,139 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:27:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-02-14 16:27:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2019-02-14 16:27:23,140 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2019-02-14 16:27:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:27:23,140 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2019-02-14 16:27:23,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2019-02-14 16:27:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2019-02-14 16:27:23,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-02-14 16:27:23,141 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:27:23,141 INFO L402 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2019-02-14 16:27:23,141 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:27:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:27:23,141 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2019-02-14 16:27:23,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:27:23,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:27:23,142 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:27:23,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:27:23,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:27:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:27:23,588 WARN L181 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:27:26,384 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 16:27:26,385 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 16:27:26,386 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 16:27:26,387 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 16:27:26,388 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 16:27:26,389 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 16:27:26,389 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 16:27:26,390 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 16:27:26,391 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 16:27:26,392 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 16:27:26,393 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 16:27:26,394 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 16:27:26,395 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 16:27:26,396 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 16:27:26,396 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 16:27:26,397 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 16:27:26,398 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 16:27:26,399 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 16:27:26,400 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 16:27:26,401 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 16:27:26,402 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 16:27:26,403 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 16:27:26,404 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 16:27:26,405 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 16:27:26,405 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 16:27:26,406 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 16:27:26,407 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 16:27:26,408 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 16:27:26,409 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 16:27:26,410 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 16:27:26,411 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 16:27:26,412 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 16:27:26,412 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 16:27:26,413 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 16:27:26,414 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 16:27:26,415 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 16:27:26,416 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 16:27:26,417 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 16:27:26,419 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 16:27:26,420 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 16:27:26,421 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 16:27:26,421 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 16:27:26,422 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 16:27:26,423 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 16:27:26,423 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 16:27:26,424 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 16:27:26,425 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 16:27:26,426 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 16:27:26,426 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 16:27:26,427 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 16:27:26,428 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 16:27:26,429 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 16:27:26,430 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 16:27:26,431 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 16:27:26,432 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 16:27:26,433 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 16:27:26,433 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 16:27:26,434 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 16:27:26,435 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 16:27:26,436 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 16:27:26,437 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 16:27:26,438 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 16:27:26,439 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 16:27:26,440 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 16:27:26,441 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 16:27:26,442 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 16:27:26,442 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 16:27:26,443 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 16:27:26,444 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 16:27:26,445 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 16:27:26,446 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 16:27:26,447 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 16:27:26,448 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 16:27:26,449 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 16:27:26,449 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 16:27:26,451 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 16:27:26,451 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 16:27:26,452 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 16:27:26,453 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 16:27:26,454 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 16:27:26,455 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 16:27:26,456 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 16:27:26,457 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 16:27:26,458 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 16:27:26,458 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 16:27:26,459 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 16:27:26,460 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 16:27:26,461 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 16:27:26,462 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 16:27:26,463 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 16:27:26,464 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 16:27:26,465 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 16:27:26,466 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 16:27:26,467 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 16:27:26,467 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 16:27:26,507 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 16:27:26,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:27:26,508 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:27:26,508 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:27:26,508 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:27:26,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:27:26,508 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 16:27:26,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:27:26,517 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:27:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:27:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:27:26,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:27:26,576 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 16:27:26,577 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:27:26,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:27:26,584 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:27:26,586 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:27:26,586 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 16:27:26,586 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:27:30,377 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 16:27:30,379 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:27:30,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:27:30,385 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:27:30,388 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:27:30,388 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 16:27:30,388 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 184 .cse0)) (<= main_i 188) (<= 184 .cse0))) [2019-02-14 16:27:30,474 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 16:27:30,474 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 16:27:30,475 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 16:27:30,475 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 16:27:30,475 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 16:27:30,476 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 16:27:30,477 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 16:27:30,477 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 16:27:30,478 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 16:27:30,479 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 16:27:30,479 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 16:27:30,480 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 16:27:30,481 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 16:27:30,481 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 16:27:30,482 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 16:27:30,483 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 16:27:30,483 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 16:27:30,484 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 16:27:30,485 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 16:27:30,485 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 16:27:30,486 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 16:27:30,487 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 16:27:30,487 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 16:27:30,488 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 16:27:30,489 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 16:27:30,489 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 16:27:30,490 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 16:27:30,491 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 16:27:30,491 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 16:27:30,492 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 16:27:30,493 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 16:27:30,493 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 16:27:30,494 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 16:27:30,495 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 16:27:30,495 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 16:27:30,496 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 16:27:30,497 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 16:27:30,497 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 16:27:30,498 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 16:27:30,499 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 16:27:30,499 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 16:27:30,500 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 16:27:30,501 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 16:27:30,501 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 16:27:30,502 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 16:27:30,503 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 16:27:30,503 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 16:27:30,504 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 16:27:30,505 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 16:27:30,505 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 16:27:30,506 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 16:27:30,507 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 16:27:30,507 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 16:27:30,508 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 16:27:30,509 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 16:27:30,509 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 16:27:30,510 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 16:27:30,511 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 16:27:30,511 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 16:27:30,512 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 16:27:30,513 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 16:27:30,513 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 16:27:30,514 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 16:27:30,515 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 16:27:30,516 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 16:27:30,516 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 16:27:30,517 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 16:27:30,518 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 16:27:30,518 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 16:27:30,519 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 16:27:30,520 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 16:27:30,521 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 16:27:30,521 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 16:27:30,522 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 16:27:30,523 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 16:27:30,523 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 16:27:30,524 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 16:27:30,525 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 16:27:30,525 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 16:27:30,526 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 16:27:30,527 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 16:27:30,527 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 16:27:30,528 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 16:27:30,529 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 16:27:30,529 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 16:27:30,530 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 16:27:30,531 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 16:27:30,531 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 16:27:30,532 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 16:27:30,533 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 16:27:30,533 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 16:27:30,534 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 16:27:30,535 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 16:27:30,536 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 16:27:30,536 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 16:27:30,555 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 16:27:30,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:27:36,878 INFO L273 TraceCheckUtils]: 94: Hoare triple {28878#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-14 16:27:36,879 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 16:27:36,880 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 16:27:36,881 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 16:27:36,881 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 16:27:36,882 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 16:27:36,882 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 16:27:36,883 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 16:27:36,883 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 16:27:36,884 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 16:27:36,885 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 16:27:36,886 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 16:27:36,886 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 16:27:36,887 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 16:27:36,888 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 16:27:36,889 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 16:27:36,889 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 16:27:36,890 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 16:27:36,891 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 16:27:36,892 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 16:27:36,893 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 16:27:36,894 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 16:27:36,894 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 16:27:36,895 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 16:27:36,896 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 16:27:36,897 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 16:27:36,897 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 16:27:36,898 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 16:27:36,899 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 16:27:36,900 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 16:27:36,900 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 16:27:36,901 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 16:27:36,902 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 16:27:36,903 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 16:27:36,904 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 16:27:36,905 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 16:27:36,905 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 16:27:36,906 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 16:27:36,907 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 16:27:36,908 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 16:27:36,908 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 16:27:36,909 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 16:27:36,910 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 16:27:36,911 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 16:27:36,911 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 16:27:36,912 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 16:27:36,913 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 16:27:36,914 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 16:27:36,915 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 16:27:36,916 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 16:27:36,916 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 16:27:36,917 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 16:27:36,918 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 16:27:36,919 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 16:27:36,919 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 16:27:36,920 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 16:27:36,921 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 16:27:36,922 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 16:27:36,922 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 16:27:36,923 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 16:27:36,924 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 16:27:36,925 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 16:27:36,926 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 16:27:36,927 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 16:27:36,927 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 16:27:36,928 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 16:27:36,929 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 16:27:36,930 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 16:27:36,930 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 16:27:36,931 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 16:27:36,932 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 16:27:36,933 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 16:27:36,933 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 16:27:36,934 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 16:27:36,935 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 16:27:36,936 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 16:27:36,937 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 16:27:36,938 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 16:27:36,938 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 16:27:36,939 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 16:27:36,940 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 16:27:36,941 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 16:27:36,941 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 16:27:36,942 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 16:27:36,943 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 16:27:36,944 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 16:27:36,944 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 16:27:36,945 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 16:27:36,946 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 16:27:36,947 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 16:27:36,948 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 16:27:36,949 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 16:27:36,949 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 16:27:36,950 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 16:27:36,951 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 16:27:36,984 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 16:27:37,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:27:37,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 146 [2019-02-14 16:27:37,003 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:27:37,004 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-14 16:27:37,004 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:27:37,004 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 99 states. [2019-02-14 16:27:37,231 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 16:27:37,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2019-02-14 16:27:37,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2019-02-14 16:27:37,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-14 16:27:37,233 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 99 states. [2019-02-14 16:27:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:50,816 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2019-02-14 16:27:50,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-02-14 16:27:50,816 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-14 16:27:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:27:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-14 16:27:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-14 16:27:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-14 16:27:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-14 16:27:50,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 100 transitions. [2019-02-14 16:27:50,924 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 16:27:50,926 INFO L225 Difference]: With dead ends: 100 [2019-02-14 16:27:50,926 INFO L226 Difference]: Without dead ends: 99 [2019-02-14 16:27:50,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-14 16:27:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-02-14 16:27:51,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2019-02-14 16:27:51,014 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:27:51,014 INFO L82 GeneralOperation]: Start isEquivalent. First operand 99 states. Second operand 98 states. [2019-02-14 16:27:51,015 INFO L74 IsIncluded]: Start isIncluded. First operand 99 states. Second operand 98 states. [2019-02-14 16:27:51,015 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 98 states. [2019-02-14 16:27:51,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:51,016 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-14 16:27:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-14 16:27:51,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:27:51,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:27:51,017 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 99 states. [2019-02-14 16:27:51,017 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 99 states. [2019-02-14 16:27:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:27:51,018 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-14 16:27:51,018 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-14 16:27:51,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:27:51,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:27:51,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:27:51,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:27:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-02-14 16:27:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2019-02-14 16:27:51,019 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2019-02-14 16:27:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:27:51,020 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2019-02-14 16:27:51,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2019-02-14 16:27:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2019-02-14 16:27:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-02-14 16:27:51,020 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:27:51,020 INFO L402 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2019-02-14 16:27:51,020 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:27:51,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:27:51,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2019-02-14 16:27:51,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:27:51,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:27:51,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:27:51,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:27:51,021 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:27:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:27:53,812 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 16:27:53,813 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 16:27:53,814 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 16:27:53,815 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 16:27:53,816 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 16:27:53,817 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 16:27:53,818 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 16:27:53,819 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 16:27:53,820 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 16:27:53,821 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 16:27:53,822 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 16:27:53,823 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 16:27:53,824 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 16:27:53,825 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 16:27:53,826 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 16:27:53,827 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 16:27:53,827 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 16:27:53,829 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 16:27:53,829 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 16:27:53,830 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 16:27:53,831 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 16:27:53,832 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 16:27:53,833 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 16:27:53,834 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 16:27:53,835 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 16:27:53,836 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 16:27:53,837 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 16:27:53,838 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 16:27:53,839 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 16:27:53,840 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 16:27:53,841 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 16:27:53,842 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 16:27:53,843 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 16:27:53,844 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 16:27:53,844 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 16:27:53,845 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 16:27:53,846 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 16:27:53,847 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 16:27:53,848 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 16:27:53,849 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 16:27:53,850 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 16:27:53,851 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 16:27:53,852 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 16:27:53,853 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 16:27:53,854 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 16:27:53,855 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 16:27:53,856 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 16:27:53,857 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 16:27:53,857 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 16:27:53,859 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 16:27:53,859 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 16:27:53,860 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 16:27:53,861 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 16:27:53,862 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 16:27:53,863 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 16:27:53,864 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 16:27:53,865 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 16:27:53,866 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 16:27:53,867 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 16:27:53,868 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 16:27:53,869 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 16:27:53,870 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 16:27:53,871 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 16:27:53,872 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 16:27:53,873 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 16:27:53,874 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 16:27:53,874 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 16:27:53,876 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 16:27:53,876 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 16:27:53,877 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 16:27:53,878 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 16:27:53,879 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 16:27:53,880 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 16:27:53,881 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 16:27:53,882 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 16:27:53,883 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 16:27:53,884 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 16:27:53,885 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 16:27:53,886 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 16:27:53,887 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 16:27:53,888 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 16:27:53,889 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 16:27:53,890 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 16:27:53,891 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 16:27:53,891 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 16:27:53,893 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 16:27:53,893 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 16:27:53,894 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 16:27:53,895 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 16:27:53,896 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 16:27:53,897 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 16:27:53,898 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 16:27:53,899 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 16:27:53,900 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 16:27:53,901 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 16:27:53,902 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 16:27:53,903 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 16:27:53,941 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 16:27:53,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:27:53,941 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:27:53,941 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:27:53,941 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:27:53,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:27:53,941 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 16:27:53,951 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:27:53,951 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:27:54,023 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2019-02-14 16:27:54,023 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:27:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:27:54,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:27:54,163 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 16:27:54,185 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:27:54,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:27:54,269 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:27:54,288 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:27:54,288 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 16:27:54,289 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:27:58,565 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 16:27:58,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:27:58,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:27:58,572 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:27:58,575 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:27:58,575 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 16:27:58,575 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (not (= 188 .cse0)) (<= main_i 192))) [2019-02-14 16:27:58,635 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 16:27:58,636 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 16:27:58,636 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 16:27:58,637 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 16:27:58,638 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 16:27:58,639 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 16:27:58,639 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 16:27:58,640 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 16:27:58,641 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 16:27:58,641 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 16:27:58,642 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 16:27:58,643 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 16:27:58,644 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 16:27:58,644 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 16:27:58,645 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 16:27:58,646 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 16:27:58,646 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 16:27:58,647 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 16:27:58,648 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 16:27:58,649 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 16:27:58,649 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 16:27:58,650 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 16:27:58,651 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 16:27:58,651 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 16:27:58,652 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 16:27:58,653 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 16:27:58,653 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 16:27:58,654 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 16:27:58,655 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 16:27:58,656 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 16:27:58,656 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 16:27:58,657 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 16:27:58,658 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 16:27:58,658 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 16:27:58,659 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 16:27:58,660 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 16:27:58,660 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 16:27:58,661 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 16:27:58,662 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 16:27:58,662 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 16:27:58,663 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 16:27:58,664 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 16:27:58,664 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 16:27:58,665 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 16:27:58,666 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 16:27:58,667 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 16:27:58,667 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 16:27:58,668 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 16:27:58,669 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 16:27:58,669 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 16:27:58,670 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 16:27:58,671 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 16:27:58,671 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 16:27:58,672 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 16:27:58,673 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 16:27:58,673 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 16:27:58,674 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 16:27:58,675 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 16:27:58,675 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 16:27:58,676 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 16:27:58,677 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 16:27:58,677 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 16:27:58,678 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 16:27:58,679 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 16:27:58,680 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 16:27:58,680 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 16:27:58,681 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 16:27:58,682 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 16:27:58,682 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 16:27:58,683 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 16:27:58,684 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 16:27:58,685 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 16:27:58,685 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 16:27:58,686 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 16:27:58,687 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 16:27:58,687 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 16:27:58,688 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 16:27:58,689 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 16:27:58,689 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 16:27:58,690 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 16:27:58,691 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 16:27:58,691 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 16:27:58,692 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 16:27:58,693 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 16:27:58,693 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 16:27:58,694 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 16:27:58,695 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 16:27:58,695 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 16:27:58,696 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 16:27:58,697 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 16:27:58,697 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 16:27:58,698 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 16:27:58,699 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 16:27:58,699 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 16:27:58,700 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 16:27:58,701 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 16:27:58,701 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 16:27:58,727 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 16:27:58,727 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:28:05,450 INFO L273 TraceCheckUtils]: 96: Hoare triple {30093#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-14 16:28:05,451 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 16:28:05,452 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 16:28:05,452 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 16:28:05,453 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 16:28:05,453 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 16:28:05,454 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 16:28:05,454 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 16:28:05,455 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 16:28:05,456 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 16:28:05,457 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 16:28:05,458 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 16:28:05,458 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 16:28:05,459 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 16:28:05,460 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 16:28:05,461 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 16:28:05,461 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 16:28:05,462 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 16:28:05,463 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 16:28:05,464 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 16:28:05,464 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 16:28:05,465 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 16:28:05,466 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 16:28:05,467 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 16:28:05,467 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 16:28:05,468 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 16:28:05,469 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 16:28:05,470 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 16:28:05,471 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 16:28:05,472 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 16:28:05,472 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 16:28:05,473 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 16:28:05,474 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 16:28:05,475 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 16:28:05,475 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 16:28:05,476 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 16:28:05,477 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 16:28:05,478 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 16:28:05,478 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 16:28:05,479 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 16:28:05,480 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 16:28:05,481 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 16:28:05,481 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 16:28:05,483 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 16:28:05,483 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 16:28:05,484 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 16:28:05,485 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 16:28:05,486 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 16:28:05,486 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 16:28:05,488 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 16:28:05,488 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 16:28:05,489 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 16:28:05,490 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 16:28:05,491 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 16:28:05,491 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 16:28:05,493 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 16:28:05,493 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 16:28:05,494 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 16:28:05,495 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 16:28:05,496 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 16:28:05,496 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 16:28:05,497 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 16:28:05,498 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 16:28:05,499 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 16:28:05,499 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 16:28:05,500 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 16:28:05,501 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 16:28:05,502 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 16:28:05,502 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 16:28:05,504 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 16:28:05,504 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 16:28:05,505 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 16:28:05,506 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 16:28:05,507 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 16:28:05,507 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 16:28:05,508 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 16:28:05,509 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 16:28:05,510 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 16:28:05,510 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 16:28:05,511 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 16:28:05,512 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 16:28:05,513 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 16:28:05,514 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 16:28:05,515 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 16:28:05,515 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 16:28:05,516 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 16:28:05,517 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 16:28:05,518 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 16:28:05,518 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 16:28:05,519 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 16:28:05,520 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 16:28:05,521 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 16:28:05,521 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 16:28:05,522 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 16:28:05,523 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 16:28:05,524 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 16:28:05,525 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 16:28:05,558 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 16:28:05,576 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:28:05,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 149 [2019-02-14 16:28:05,577 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:28:05,577 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-14 16:28:05,577 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:28:05,577 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2019-02-14 16:28:05,804 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 16:28:05,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-02-14 16:28:05,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-02-14 16:28:05,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-14 16:28:05,806 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 101 states. [2019-02-14 16:28:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:18,057 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2019-02-14 16:28:18,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-02-14 16:28:18,064 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-14 16:28:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:28:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-14 16:28:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-14 16:28:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-14 16:28:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-14 16:28:18,066 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 102 transitions. [2019-02-14 16:28:18,178 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 16:28:18,180 INFO L225 Difference]: With dead ends: 102 [2019-02-14 16:28:18,180 INFO L226 Difference]: Without dead ends: 101 [2019-02-14 16:28:18,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5096 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-14 16:28:18,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-02-14 16:28:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2019-02-14 16:28:18,292 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:28:18,292 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 100 states. [2019-02-14 16:28:18,292 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 100 states. [2019-02-14 16:28:18,292 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 100 states. [2019-02-14 16:28:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:18,294 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-14 16:28:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-14 16:28:18,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:28:18,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:28:18,295 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 101 states. [2019-02-14 16:28:18,295 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 101 states. [2019-02-14 16:28:18,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:18,296 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-14 16:28:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-14 16:28:18,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:28:18,296 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:28:18,296 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:28:18,297 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:28:18,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-02-14 16:28:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2019-02-14 16:28:18,298 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2019-02-14 16:28:18,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:28:18,298 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2019-02-14 16:28:18,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-02-14 16:28:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2019-02-14 16:28:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-02-14 16:28:18,299 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:28:18,299 INFO L402 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2019-02-14 16:28:18,299 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:28:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:28:18,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2019-02-14 16:28:18,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:28:18,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:28:18,301 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:28:18,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:28:18,301 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:28:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:28:21,416 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 16:28:21,418 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 16:28:21,419 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 16:28:21,420 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 16:28:21,420 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 16:28:21,421 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 16:28:21,422 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 16:28:21,423 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 16:28:21,424 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 16:28:21,425 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 16:28:21,426 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 16:28:21,427 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 16:28:21,428 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 16:28:21,429 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 16:28:21,430 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 16:28:21,431 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 16:28:21,431 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 16:28:21,433 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 16:28:21,433 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 16:28:21,434 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 16:28:21,435 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 16:28:21,436 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 16:28:21,437 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 16:28:21,438 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 16:28:21,439 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 16:28:21,440 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 16:28:21,441 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 16:28:21,442 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 16:28:21,443 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 16:28:21,444 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 16:28:21,445 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 16:28:21,446 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 16:28:21,446 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 16:28:21,447 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 16:28:21,448 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 16:28:21,449 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 16:28:21,450 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 16:28:21,451 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 16:28:21,452 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 16:28:21,453 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 16:28:21,454 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 16:28:21,455 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 16:28:21,455 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 16:28:21,456 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 16:28:21,457 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 16:28:21,458 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 16:28:21,459 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 16:28:21,460 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 16:28:21,461 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 16:28:21,462 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 16:28:21,463 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 16:28:21,464 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 16:28:21,464 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 16:28:21,465 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 16:28:21,466 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 16:28:21,467 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 16:28:21,468 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 16:28:21,469 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 16:28:21,470 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 16:28:21,471 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 16:28:21,472 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 16:28:21,473 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 16:28:21,474 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 16:28:21,475 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 16:28:21,476 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 16:28:21,477 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 16:28:21,477 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 16:28:21,478 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 16:28:21,479 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 16:28:21,480 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 16:28:21,481 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 16:28:21,482 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 16:28:21,483 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 16:28:21,484 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 16:28:21,485 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 16:28:21,486 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 16:28:21,487 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 16:28:21,488 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 16:28:21,488 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 16:28:21,490 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 16:28:21,490 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 16:28:21,491 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 16:28:21,492 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 16:28:21,493 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 16:28:21,494 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 16:28:21,495 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 16:28:21,496 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 16:28:21,497 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 16:28:21,498 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 16:28:21,499 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 16:28:21,500 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 16:28:21,501 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 16:28:21,501 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 16:28:21,503 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 16:28:21,503 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 16:28:21,505 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 16:28:21,506 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 16:28:21,507 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 16:28:21,507 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 16:28:21,547 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 16:28:21,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:28:21,548 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:28:21,548 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:28:21,548 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:28:21,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:28:21,548 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 16:28:21,557 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:28:21,557 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:28:21,587 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:28:21,587 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:28:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:28:21,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:28:21,616 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 16:28:21,619 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:28:21,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:28:21,628 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:28:21,630 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:28:21,630 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 16:28:21,630 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:28:25,395 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 16:28:25,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:28:25,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:28:25,412 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:28:25,417 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:28:25,417 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 16:28:25,417 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 192 .cse0)) (<= 192 .cse0) (<= main_i 196))) [2019-02-14 16:28:25,583 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 16:28:25,583 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 16:28:25,586 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 16:28:25,586 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 16:28:25,588 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 16:28:25,588 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 16:28:25,590 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 16:28:25,590 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 16:28:25,592 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 16:28:25,592 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 16:28:25,594 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 16:28:25,594 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 16:28:25,597 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 16:28:25,597 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 16:28:25,600 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 16:28:25,600 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 16:28:25,602 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 16:28:25,602 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 16:28:25,605 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 16:28:25,605 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 16:28:25,607 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 16:28:25,607 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 16:28:25,609 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 16:28:25,609 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 16:28:25,611 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 16:28:25,611 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 16:28:25,614 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 16:28:25,614 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 16:28:25,617 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 16:28:25,617 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 16:28:25,620 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 16:28:25,620 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 16:28:25,623 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 16:28:25,623 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 16:28:25,626 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 16:28:25,626 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 16:28:25,628 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 16:28:25,628 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 16:28:25,630 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 16:28:25,630 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 16:28:25,632 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 16:28:25,634 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 16:28:25,634 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 16:28:25,636 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 16:28:25,636 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 16:28:25,639 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 16:28:25,639 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 16:28:25,642 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 16:28:25,642 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 16:28:25,644 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 16:28:25,644 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 16:28:25,646 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 16:28:25,646 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 16:28:25,649 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 16:28:25,649 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 16:28:25,652 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 16:28:25,652 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 16:28:25,654 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 16:28:25,654 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 16:28:25,657 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 16:28:25,657 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 16:28:25,659 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 16:28:25,659 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 16:28:25,662 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 16:28:25,662 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 16:28:25,664 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 16:28:25,664 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 16:28:25,666 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 16:28:25,666 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 16:28:25,669 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 16:28:25,669 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 16:28:25,672 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 16:28:25,672 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 16:28:25,674 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 16:28:25,674 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 16:28:25,676 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 16:28:25,676 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 16:28:25,678 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 16:28:25,678 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 16:28:25,680 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 16:28:25,680 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 16:28:25,683 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 16:28:25,683 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 16:28:25,685 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 16:28:25,685 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 16:28:25,687 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 16:28:25,687 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 16:28:25,689 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 16:28:25,689 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 16:28:25,691 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 16:28:25,693 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 16:28:25,693 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 16:28:25,695 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 16:28:25,695 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 16:28:25,697 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 16:28:25,697 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 16:28:25,699 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 16:28:25,699 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 16:28:25,702 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 16:28:25,722 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 16:28:25,722 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:28:32,548 INFO L273 TraceCheckUtils]: 98: Hoare triple {31333#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-14 16:28:32,549 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 16:28:32,550 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 16:28:32,551 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 16:28:32,551 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 16:28:32,552 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 16:28:32,552 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 16:28:32,553 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 16:28:32,554 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 16:28:32,555 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 16:28:32,555 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 16:28:32,556 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 16:28:32,557 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 16:28:32,558 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 16:28:32,558 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 16:28:32,559 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 16:28:32,560 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 16:28:32,561 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 16:28:32,562 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 16:28:32,563 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 16:28:32,563 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 16:28:32,564 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 16:28:32,565 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 16:28:32,566 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 16:28:32,566 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 16:28:32,567 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 16:28:32,568 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 16:28:32,569 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 16:28:32,569 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 16:28:32,570 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 16:28:32,571 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 16:28:32,572 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 16:28:32,573 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 16:28:32,574 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 16:28:32,574 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 16:28:32,575 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 16:28:32,576 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 16:28:32,577 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 16:28:32,577 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 16:28:32,578 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 16:28:32,579 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 16:28:32,580 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 16:28:32,580 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 16:28:32,581 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 16:28:32,582 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 16:28:32,583 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 16:28:32,583 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 16:28:32,584 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 16:28:32,585 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 16:28:32,586 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 16:28:32,587 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 16:28:32,588 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 16:28:32,588 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 16:28:32,589 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 16:28:32,590 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 16:28:32,591 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 16:28:32,591 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 16:28:32,592 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 16:28:32,593 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 16:28:32,594 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 16:28:32,594 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 16:28:32,595 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 16:28:32,596 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 16:28:32,597 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 16:28:32,598 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 16:28:32,599 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 16:28:32,599 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 16:28:32,600 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 16:28:32,601 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 16:28:32,602 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 16:28:32,602 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 16:28:32,603 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 16:28:32,604 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 16:28:32,605 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 16:28:32,605 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 16:28:32,606 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 16:28:32,607 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 16:28:32,608 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 16:28:32,608 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 16:28:32,610 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 16:28:32,610 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 16:28:32,611 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 16:28:32,612 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 16:28:32,613 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 16:28:32,613 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 16:28:32,614 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 16:28:32,615 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 16:28:32,616 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 16:28:32,616 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 16:28:32,617 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 16:28:32,618 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 16:28:32,619 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 16:28:32,619 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 16:28:32,620 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 16:28:32,621 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 16:28:32,622 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 16:28:32,623 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 16:28:32,624 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 16:28:32,625 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 16:28:32,660 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 16:28:32,679 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:28:32,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 152 [2019-02-14 16:28:32,679 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:28:32,679 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-14 16:28:32,679 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:28:32,680 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states. [2019-02-14 16:28:32,914 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 16:28:32,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2019-02-14 16:28:32,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2019-02-14 16:28:32,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-14 16:28:32,916 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 103 states. [2019-02-14 16:28:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:52,257 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2019-02-14 16:28:52,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-02-14 16:28:52,258 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-14 16:28:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:28:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-14 16:28:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-14 16:28:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-14 16:28:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-14 16:28:52,260 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 104 transitions. [2019-02-14 16:28:52,379 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 16:28:52,380 INFO L225 Difference]: With dead ends: 104 [2019-02-14 16:28:52,381 INFO L226 Difference]: Without dead ends: 103 [2019-02-14 16:28:52,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5300 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-14 16:28:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-02-14 16:28:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2019-02-14 16:28:52,475 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:28:52,475 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 102 states. [2019-02-14 16:28:52,476 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 102 states. [2019-02-14 16:28:52,476 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 102 states. [2019-02-14 16:28:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:52,477 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-14 16:28:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-14 16:28:52,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:28:52,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:28:52,478 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 103 states. [2019-02-14 16:28:52,478 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 103 states. [2019-02-14 16:28:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:28:52,479 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-14 16:28:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-14 16:28:52,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:28:52,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:28:52,479 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:28:52,479 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:28:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-02-14 16:28:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2019-02-14 16:28:52,480 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2019-02-14 16:28:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:28:52,481 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2019-02-14 16:28:52,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2019-02-14 16:28:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2019-02-14 16:28:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-02-14 16:28:52,481 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:28:52,481 INFO L402 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2019-02-14 16:28:52,481 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:28:52,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:28:52,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2019-02-14 16:28:52,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:28:52,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:28:52,482 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:28:52,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:28:52,483 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:28:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:28:55,396 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 16:28:55,397 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 16:28:55,398 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 16:28:55,399 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 16:28:55,400 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 16:28:55,401 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 16:28:55,402 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 16:28:55,403 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 16:28:55,403 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 16:28:55,404 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 16:28:55,405 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 16:28:55,406 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 16:28:55,407 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 16:28:55,408 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 16:28:55,409 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 16:28:55,410 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 16:28:55,410 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 16:28:55,411 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 16:28:55,412 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 16:28:55,413 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 16:28:55,414 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 16:28:55,415 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 16:28:55,416 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 16:28:55,417 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 16:28:55,417 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 16:28:55,418 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 16:28:55,419 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 16:28:55,420 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 16:28:55,421 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 16:28:55,422 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 16:28:55,423 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 16:28:55,424 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 16:28:55,425 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 16:28:55,426 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 16:28:55,427 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 16:28:55,428 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 16:28:55,428 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 16:28:55,429 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 16:28:55,430 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 16:28:55,431 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 16:28:55,432 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 16:28:55,433 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 16:28:55,434 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 16:28:55,435 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 16:28:55,435 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 16:28:55,436 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 16:28:55,437 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 16:28:55,438 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 16:28:55,439 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 16:28:55,440 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 16:28:55,441 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 16:28:55,442 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 16:28:55,442 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 16:28:55,443 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 16:28:55,444 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 16:28:55,445 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 16:28:55,446 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 16:28:55,447 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 16:28:55,448 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 16:28:55,449 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 16:28:55,450 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 16:28:55,451 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 16:28:55,451 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 16:28:55,452 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 16:28:55,453 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 16:28:55,454 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 16:28:55,455 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 16:28:55,456 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 16:28:55,457 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 16:28:55,458 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 16:28:55,458 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 16:28:55,459 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 16:28:55,460 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 16:28:55,461 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 16:28:55,462 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 16:28:55,463 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 16:28:55,464 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 16:28:55,465 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 16:28:55,466 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 16:28:55,467 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 16:28:55,468 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 16:28:55,469 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 16:28:55,469 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 16:28:55,471 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 16:28:55,471 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 16:28:55,472 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 16:28:55,473 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 16:28:55,474 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 16:28:55,475 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 16:28:55,476 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 16:28:55,477 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 16:28:55,478 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 16:28:55,478 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 16:28:55,480 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 16:28:55,480 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 16:28:55,481 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 16:28:55,482 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 16:28:55,484 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 16:28:55,485 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 16:28:55,486 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 16:28:55,486 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 16:28:55,527 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 16:28:55,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:28:55,527 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:28:55,527 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:28:55,527 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:28:55,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:28:55,527 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 16:28:55,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:28:55,535 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:28:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:28:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:28:55,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:28:55,590 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 16:28:55,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:28:55,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:28:55,603 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:28:55,605 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:28:55,605 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 16:28:55,605 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:28:59,681 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 16:28:59,683 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:28:59,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:28:59,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:28:59,691 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:28:59,692 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 16:28:59,692 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 196 .cse0)) (<= 196 .cse0) (<= main_i 200))) [2019-02-14 16:28:59,752 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 16:28:59,753 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 16:28:59,753 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 16:28:59,754 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 16:28:59,754 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 16:28:59,754 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 16:28:59,755 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 16:28:59,756 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 16:28:59,756 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 16:28:59,757 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 16:28:59,758 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 16:28:59,758 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 16:28:59,759 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 16:28:59,760 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 16:28:59,760 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 16:28:59,761 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 16:28:59,762 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 16:28:59,762 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 16:28:59,763 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 16:28:59,764 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 16:28:59,764 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 16:28:59,765 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 16:28:59,766 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 16:28:59,766 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 16:28:59,767 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 16:28:59,768 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 16:28:59,768 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 16:28:59,769 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 16:28:59,770 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 16:28:59,770 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 16:28:59,771 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 16:28:59,772 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 16:28:59,772 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 16:28:59,773 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 16:28:59,774 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 16:28:59,774 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 16:28:59,775 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 16:28:59,776 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 16:28:59,776 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 16:28:59,777 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 16:28:59,778 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 16:28:59,778 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 16:28:59,779 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 16:28:59,780 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 16:28:59,780 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 16:28:59,781 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 16:28:59,782 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 16:28:59,782 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 16:28:59,783 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 16:28:59,784 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 16:28:59,784 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 16:28:59,785 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 16:28:59,786 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 16:28:59,786 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 16:28:59,787 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 16:28:59,788 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 16:28:59,788 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 16:28:59,789 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 16:28:59,790 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 16:28:59,790 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 16:28:59,791 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 16:28:59,792 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 16:28:59,792 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 16:28:59,793 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 16:28:59,794 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 16:28:59,795 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 16:28:59,795 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 16:28:59,796 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 16:28:59,797 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 16:28:59,797 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 16:28:59,798 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 16:28:59,799 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 16:28:59,799 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 16:28:59,800 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 16:28:59,801 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 16:28:59,801 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 16:28:59,802 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 16:28:59,803 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 16:28:59,803 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 16:28:59,804 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 16:28:59,805 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 16:28:59,805 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 16:28:59,806 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 16:28:59,807 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 16:28:59,807 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 16:28:59,808 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 16:28:59,809 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 16:28:59,809 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 16:28:59,810 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 16:28:59,811 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 16:28:59,811 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 16:28:59,812 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 16:28:59,813 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 16:28:59,813 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 16:28:59,814 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 16:28:59,815 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 16:28:59,815 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 16:28:59,816 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 16:28:59,817 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 16:28:59,818 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 16:28:59,818 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 16:28:59,841 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 16:28:59,841 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:29:07,094 INFO L273 TraceCheckUtils]: 100: Hoare triple {32598#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-14 16:29:07,095 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 16:29:07,096 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 16:29:07,097 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 16:29:07,097 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 16:29:07,098 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 16:29:07,099 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 16:29:07,100 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 16:29:07,100 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 16:29:07,101 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 16:29:07,102 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 16:29:07,103 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 16:29:07,103 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 16:29:07,104 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 16:29:07,105 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 16:29:07,106 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 16:29:07,107 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 16:29:07,108 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 16:29:07,108 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 16:29:07,109 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 16:29:07,110 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 16:29:07,111 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 16:29:07,111 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 16:29:07,112 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 16:29:07,113 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 16:29:07,114 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 16:29:07,114 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 16:29:07,115 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 16:29:07,116 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 16:29:07,117 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 16:29:07,117 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 16:29:07,118 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 16:29:07,119 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 16:29:07,120 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 16:29:07,121 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 16:29:07,122 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 16:29:07,122 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 16:29:07,123 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 16:29:07,124 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 16:29:07,125 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 16:29:07,125 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 16:29:07,126 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 16:29:07,127 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 16:29:07,128 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 16:29:07,128 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 16:29:07,129 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 16:29:07,130 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 16:29:07,131 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 16:29:07,131 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 16:29:07,133 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 16:29:07,133 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 16:29:07,134 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 16:29:07,135 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 16:29:07,136 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 16:29:07,136 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 16:29:07,137 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 16:29:07,138 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 16:29:07,139 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 16:29:07,139 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 16:29:07,140 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 16:29:07,141 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 16:29:07,142 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 16:29:07,142 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 16:29:07,143 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 16:29:07,144 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 16:29:07,145 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 16:29:07,146 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 16:29:07,147 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 16:29:07,147 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 16:29:07,148 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 16:29:07,149 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 16:29:07,150 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 16:29:07,150 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 16:29:07,151 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 16:29:07,152 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 16:29:07,153 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 16:29:07,153 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 16:29:07,154 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 16:29:07,155 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 16:29:07,156 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 16:29:07,157 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 16:29:07,158 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 16:29:07,158 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 16:29:07,159 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 16:29:07,160 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 16:29:07,161 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 16:29:07,161 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 16:29:07,162 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 16:29:07,163 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 16:29:07,164 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 16:29:07,164 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 16:29:07,165 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 16:29:07,166 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 16:29:07,167 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 16:29:07,167 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 16:29:07,169 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 16:29:07,169 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 16:29:07,170 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 16:29:07,171 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 16:29:07,172 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 16:29:07,173 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 16:29:07,208 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 16:29:07,226 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:29:07,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 155 [2019-02-14 16:29:07,226 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:29:07,227 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-14 16:29:07,227 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:29:07,227 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 105 states. [2019-02-14 16:29:07,460 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 16:29:07,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2019-02-14 16:29:07,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2019-02-14 16:29:07,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-14 16:29:07,462 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 105 states. [2019-02-14 16:29:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:29:27,936 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2019-02-14 16:29:27,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-02-14 16:29:27,936 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-14 16:29:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:29:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-14 16:29:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-14 16:29:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-14 16:29:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-14 16:29:27,939 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 54 states and 106 transitions. [2019-02-14 16:29:28,561 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 16:29:28,563 INFO L225 Difference]: With dead ends: 106 [2019-02-14 16:29:28,563 INFO L226 Difference]: Without dead ends: 105 [2019-02-14 16:29:28,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5508 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-14 16:29:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-02-14 16:29:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2019-02-14 16:29:29,028 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:29:29,028 INFO L82 GeneralOperation]: Start isEquivalent. First operand 105 states. Second operand 104 states. [2019-02-14 16:29:29,028 INFO L74 IsIncluded]: Start isIncluded. First operand 105 states. Second operand 104 states. [2019-02-14 16:29:29,028 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 104 states. [2019-02-14 16:29:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:29:29,030 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-14 16:29:29,030 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-14 16:29:29,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:29:29,030 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:29:29,030 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 105 states. [2019-02-14 16:29:29,030 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 105 states. [2019-02-14 16:29:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:29:29,031 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-14 16:29:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-14 16:29:29,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:29:29,032 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:29:29,032 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:29:29,032 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:29:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-02-14 16:29:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2019-02-14 16:29:29,033 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2019-02-14 16:29:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:29:29,033 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2019-02-14 16:29:29,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2019-02-14 16:29:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2019-02-14 16:29:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-02-14 16:29:29,034 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:29:29,034 INFO L402 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2019-02-14 16:29:29,034 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:29:29,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:29:29,035 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2019-02-14 16:29:29,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:29:29,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:29:29,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:29:29,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:29:29,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:29:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:29:32,438 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 16:29:32,439 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 16:29:32,440 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 16:29:32,441 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 16:29:32,441 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 16:29:32,442 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 16:29:32,443 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 16:29:32,444 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 16:29:32,445 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 16:29:32,446 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 16:29:32,447 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 16:29:32,448 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 16:29:32,449 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 16:29:32,450 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 16:29:32,450 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 16:29:32,451 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 16:29:32,452 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 16:29:32,453 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 16:29:32,454 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 16:29:32,455 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 16:29:32,456 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 16:29:32,457 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 16:29:32,457 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 16:29:32,458 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 16:29:32,459 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 16:29:32,460 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 16:29:32,461 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 16:29:32,462 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 16:29:32,463 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 16:29:32,464 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 16:29:32,464 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 16:29:32,465 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 16:29:32,466 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 16:29:32,467 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 16:29:32,468 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 16:29:32,469 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 16:29:32,470 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 16:29:32,471 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 16:29:32,471 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 16:29:32,473 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 16:29:32,473 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 16:29:32,474 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 16:29:32,475 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 16:29:32,476 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 16:29:32,477 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 16:29:32,478 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 16:29:32,479 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 16:29:32,480 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 16:29:32,480 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 16:29:32,481 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 16:29:32,482 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 16:29:32,483 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 16:29:32,484 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 16:29:32,485 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 16:29:32,486 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 16:29:32,487 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 16:29:32,487 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 16:29:32,488 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 16:29:32,489 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 16:29:32,490 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 16:29:32,491 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 16:29:32,492 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 16:29:32,493 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 16:29:32,494 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 16:29:32,495 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 16:29:32,496 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 16:29:32,496 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 16:29:32,497 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 16:29:32,498 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 16:29:32,499 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 16:29:32,500 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 16:29:32,501 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 16:29:32,502 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 16:29:32,503 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 16:29:32,503 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 16:29:32,504 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 16:29:32,505 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 16:29:32,506 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 16:29:32,507 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 16:29:32,508 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 16:29:32,509 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 16:29:32,510 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 16:29:32,511 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 16:29:32,512 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 16:29:32,512 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 16:29:32,513 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 16:29:32,514 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 16:29:32,515 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 16:29:32,516 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 16:29:32,517 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 16:29:32,518 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 16:29:32,519 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 16:29:32,519 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 16:29:32,520 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 16:29:32,521 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 16:29:32,522 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 16:29:32,523 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 16:29:32,524 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 16:29:32,525 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 16:29:32,526 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 16:29:32,527 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 16:29:32,528 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 16:29:32,528 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 16:29:32,573 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 16:29:32,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:29:32,573 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:29:32,574 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:29:32,574 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:29:32,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:29:32,574 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 16:29:32,582 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:29:32,582 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:29:32,683 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2019-02-14 16:29:32,683 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:29:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:29:32,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:29:32,722 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 16:29:32,723 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:29:32,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:29:32,728 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:29:32,730 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:29:32,730 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 16:29:32,731 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:29:36,767 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 16:29:36,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:29:36,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:29:36,775 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:29:36,777 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:29:36,777 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 16:29:36,778 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 200 .cse0)) (<= 200 .cse0) (<= main_i 204))) [2019-02-14 16:29:36,840 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 16:29:36,841 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 16:29:36,842 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 16:29:36,842 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 16:29:36,842 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 16:29:36,843 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 16:29:36,843 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 16:29:36,844 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 16:29:36,844 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 16:29:36,845 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 16:29:36,846 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 16:29:36,846 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 16:29:36,847 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 16:29:36,848 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 16:29:36,848 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 16:29:36,849 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 16:29:36,850 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 16:29:36,850 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 16:29:36,851 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 16:29:36,852 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 16:29:36,852 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 16:29:36,853 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 16:29:36,854 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 16:29:36,854 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 16:29:36,855 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 16:29:36,856 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 16:29:36,856 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 16:29:36,857 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 16:29:36,858 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 16:29:36,858 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 16:29:36,859 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 16:29:36,860 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 16:29:36,860 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 16:29:36,861 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 16:29:36,862 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 16:29:36,862 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 16:29:36,863 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 16:29:36,864 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 16:29:36,864 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 16:29:36,865 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 16:29:36,866 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 16:29:36,866 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 16:29:36,867 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 16:29:36,868 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 16:29:36,868 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 16:29:36,869 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 16:29:36,870 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 16:29:36,870 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 16:29:36,871 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 16:29:36,872 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 16:29:36,872 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 16:29:36,873 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 16:29:36,874 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 16:29:36,874 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 16:29:36,875 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 16:29:36,876 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 16:29:36,876 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 16:29:36,877 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 16:29:36,878 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 16:29:36,878 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 16:29:36,879 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 16:29:36,880 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 16:29:36,880 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 16:29:36,881 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 16:29:36,882 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 16:29:36,883 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 16:29:36,883 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 16:29:36,884 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 16:29:36,885 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 16:29:36,885 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 16:29:36,886 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 16:29:36,887 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 16:29:36,888 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 16:29:36,888 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 16:29:36,889 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 16:29:36,890 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 16:29:36,890 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 16:29:36,891 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 16:29:36,892 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 16:29:36,892 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 16:29:36,893 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 16:29:36,894 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 16:29:36,894 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 16:29:36,895 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 16:29:36,896 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 16:29:36,896 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 16:29:36,897 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 16:29:36,898 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 16:29:36,898 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 16:29:36,899 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 16:29:36,900 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 16:29:36,900 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 16:29:36,901 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 16:29:36,902 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 16:29:36,902 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 16:29:36,903 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 16:29:36,904 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 16:29:36,905 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 16:29:36,905 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 16:29:36,906 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 16:29:36,907 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 16:29:36,908 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 16:29:36,908 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 16:29:36,932 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 16:29:36,932 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:29:44,244 INFO L273 TraceCheckUtils]: 102: Hoare triple {33888#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-14 16:29:44,245 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 16:29:44,246 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 16:29:44,246 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 16:29:44,247 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 16:29:44,248 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 16:29:44,248 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 16:29:44,249 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 16:29:44,250 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 16:29:44,251 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 16:29:44,251 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 16:29:44,252 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 16:29:44,253 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 16:29:44,254 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 16:29:44,254 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 16:29:44,256 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 16:29:44,256 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 16:29:44,257 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 16:29:44,258 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 16:29:44,259 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 16:29:44,259 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 16:29:44,260 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 16:29:44,261 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 16:29:44,262 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 16:29:44,262 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 16:29:44,263 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 16:29:44,264 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 16:29:44,265 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 16:29:44,265 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 16:29:44,266 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 16:29:44,267 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 16:29:44,268 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 16:29:44,269 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 16:29:44,270 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 16:29:44,270 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 16:29:44,271 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 16:29:44,272 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 16:29:44,273 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 16:29:44,273 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 16:29:44,274 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 16:29:44,275 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 16:29:44,276 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 16:29:44,276 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 16:29:44,277 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 16:29:44,278 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 16:29:44,279 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 16:29:44,279 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 16:29:44,281 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 16:29:44,281 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 16:29:44,282 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 16:29:44,283 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 16:29:44,284 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 16:29:44,284 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 16:29:44,285 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 16:29:44,286 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 16:29:44,287 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 16:29:44,287 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 16:29:44,288 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 16:29:44,289 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 16:29:44,290 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 16:29:44,291 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 16:29:44,292 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 16:29:44,292 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 16:29:44,293 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 16:29:44,294 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 16:29:44,295 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 16:29:44,295 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 16:29:44,296 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 16:29:44,297 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 16:29:44,298 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 16:29:44,298 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 16:29:44,299 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 16:29:44,300 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 16:29:44,301 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 16:29:44,302 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 16:29:44,303 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 16:29:44,303 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 16:29:44,304 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 16:29:44,305 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 16:29:44,306 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 16:29:44,306 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 16:29:44,307 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 16:29:44,308 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 16:29:44,309 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 16:29:44,309 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 16:29:44,310 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 16:29:44,311 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 16:29:44,312 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 16:29:44,312 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 16:29:44,314 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 16:29:44,314 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 16:29:44,315 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 16:29:44,316 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 16:29:44,317 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 16:29:44,317 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 16:29:44,318 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 16:29:44,319 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 16:29:44,320 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 16:29:44,320 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 16:29:44,321 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 16:29:44,322 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 16:29:44,323 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 16:29:44,324 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 16:29:44,361 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 16:29:44,381 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:29:44,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 158 [2019-02-14 16:29:44,381 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:29:44,382 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-14 16:29:44,382 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:29:44,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2019-02-14 16:29:44,662 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 16:29:44,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2019-02-14 16:29:44,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2019-02-14 16:29:44,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-14 16:29:44,664 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 107 states. [2019-02-14 16:30:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:06,324 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2019-02-14 16:30:06,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-02-14 16:30:06,324 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-14 16:30:06,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:30:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-14 16:30:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-14 16:30:06,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-14 16:30:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-14 16:30:06,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 108 transitions. [2019-02-14 16:30:06,446 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 16:30:06,448 INFO L225 Difference]: With dead ends: 108 [2019-02-14 16:30:06,448 INFO L226 Difference]: Without dead ends: 107 [2019-02-14 16:30:06,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5720 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-14 16:30:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-02-14 16:30:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2019-02-14 16:30:06,570 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:30:06,570 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 106 states. [2019-02-14 16:30:06,570 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 106 states. [2019-02-14 16:30:06,571 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 106 states. [2019-02-14 16:30:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:06,572 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-14 16:30:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-14 16:30:06,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:30:06,573 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:30:06,573 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 107 states. [2019-02-14 16:30:06,573 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 107 states. [2019-02-14 16:30:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:06,575 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-14 16:30:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-14 16:30:06,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:30:06,575 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:30:06,575 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:30:06,575 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:30:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-02-14 16:30:06,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2019-02-14 16:30:06,576 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2019-02-14 16:30:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:30:06,576 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2019-02-14 16:30:06,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2019-02-14 16:30:06,577 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2019-02-14 16:30:06,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-02-14 16:30:06,577 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:30:06,577 INFO L402 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2019-02-14 16:30:06,577 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:30:06,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:30:06,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2019-02-14 16:30:06,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:30:06,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:30:06,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:30:06,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:30:06,579 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:30:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:30:09,963 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 16:30:09,964 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 16:30:09,965 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 16:30:09,966 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 16:30:09,967 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 16:30:09,968 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 16:30:09,969 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 16:30:09,970 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 16:30:09,971 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 16:30:09,972 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 16:30:09,972 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 16:30:09,974 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 16:30:09,974 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 16:30:09,975 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 16:30:09,976 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 16:30:09,977 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 16:30:09,978 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 16:30:09,979 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 16:30:09,980 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 16:30:09,981 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 16:30:09,982 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 16:30:09,983 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 16:30:09,984 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 16:30:09,985 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 16:30:09,986 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 16:30:09,987 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 16:30:09,988 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 16:30:09,989 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 16:30:09,990 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 16:30:09,991 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 16:30:09,992 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 16:30:09,993 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 16:30:09,994 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 16:30:09,995 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 16:30:09,995 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 16:30:09,997 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 16:30:09,997 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 16:30:09,999 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 16:30:09,999 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 16:30:10,000 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 16:30:10,001 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 16:30:10,002 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 16:30:10,003 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 16:30:10,004 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 16:30:10,005 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 16:30:10,006 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 16:30:10,007 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 16:30:10,008 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 16:30:10,009 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 16:30:10,010 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 16:30:10,011 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 16:30:10,012 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 16:30:10,013 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 16:30:10,014 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 16:30:10,015 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 16:30:10,016 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 16:30:10,017 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 16:30:10,018 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 16:30:10,019 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 16:30:10,020 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 16:30:10,021 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 16:30:10,022 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 16:30:10,023 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 16:30:10,024 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 16:30:10,025 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 16:30:10,026 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 16:30:10,027 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 16:30:10,028 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 16:30:10,029 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 16:30:10,030 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 16:30:10,031 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 16:30:10,032 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 16:30:10,033 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 16:30:10,034 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 16:30:10,035 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 16:30:10,036 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 16:30:10,037 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 16:30:10,038 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 16:30:10,039 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 16:30:10,040 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 16:30:10,041 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 16:30:10,042 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 16:30:10,043 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 16:30:10,044 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 16:30:10,045 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 16:30:10,046 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 16:30:10,047 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 16:30:10,048 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 16:30:10,049 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 16:30:10,050 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 16:30:10,051 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 16:30:10,052 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 16:30:10,053 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 16:30:10,054 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 16:30:10,055 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 16:30:10,056 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 16:30:10,057 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 16:30:10,058 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 16:30:10,059 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 16:30:10,060 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 16:30:10,061 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 16:30:10,062 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 16:30:10,063 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 16:30:10,064 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 16:30:10,065 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 16:30:10,127 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 16:30:10,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:30:10,127 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:30:10,127 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:30:10,127 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:30:10,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:30:10,127 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 16:30:10,135 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:30:10,136 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:30:10,169 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:30:10,169 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:30:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:30:10,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:30:10,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-02-14 16:30:10,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:30:10,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:30:10,217 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:30:10,219 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:30:10,219 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 16:30:10,219 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:30:14,732 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 16:30:14,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:30:14,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:30:14,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:30:14,743 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:30:14,743 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (not (= 23 (select main_a 204))) (<= main_i 208) (= 23 (select main_a .cse0)))) [2019-02-14 16:30:14,743 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (<= main_i 208) (not (= 204 .cse0)))) [2019-02-14 16:30:14,807 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 16:30:14,808 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 16:30:14,808 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 16:30:14,809 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 16:30:14,809 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 16:30:14,809 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 16:30:14,810 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 16:30:14,811 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 16:30:14,811 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 16:30:14,812 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 16:30:14,813 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 16:30:14,813 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 16:30:14,814 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 16:30:14,815 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 16:30:14,815 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 16:30:14,816 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 16:30:14,817 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 16:30:14,817 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 16:30:14,818 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 16:30:14,819 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 16:30:14,819 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 16:30:14,820 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 16:30:14,821 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 16:30:14,822 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 16:30:14,822 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 16:30:14,823 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 16:30:14,824 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 16:30:14,824 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 16:30:14,825 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 16:30:14,826 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 16:30:14,826 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 16:30:14,827 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 16:30:14,828 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 16:30:14,829 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 16:30:14,829 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 16:30:14,830 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 16:30:14,831 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 16:30:14,831 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 16:30:14,832 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 16:30:14,833 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 16:30:14,834 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 16:30:14,834 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 16:30:14,835 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 16:30:14,836 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 16:30:14,837 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 16:30:14,837 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 16:30:14,838 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 16:30:14,839 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 16:30:14,839 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 16:30:14,840 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 16:30:14,841 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 16:30:14,841 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 16:30:14,842 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 16:30:14,843 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 16:30:14,843 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 16:30:14,844 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 16:30:14,845 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 16:30:14,845 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 16:30:14,846 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 16:30:14,847 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 16:30:14,848 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 16:30:14,848 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 16:30:14,849 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 16:30:14,850 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 16:30:14,851 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 16:30:14,851 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 16:30:14,852 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 16:30:14,853 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 16:30:14,853 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 16:30:14,854 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 16:30:14,855 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 16:30:14,856 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 16:30:14,857 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 16:30:14,857 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 16:30:14,858 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 16:30:14,859 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 16:30:14,859 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 16:30:14,860 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 16:30:14,861 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 16:30:14,861 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 16:30:14,862 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 16:30:14,863 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 16:30:14,863 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 16:30:14,864 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 16:30:14,865 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 16:30:14,865 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 16:30:14,866 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 16:30:14,867 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 16:30:14,867 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 16:30:14,868 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 16:30:14,869 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 16:30:14,869 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 16:30:14,870 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 16:30:14,871 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 16:30:14,871 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 16:30:14,872 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 16:30:14,873 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 16:30:14,873 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 16:30:14,874 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 16:30:14,875 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 16:30:14,875 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 16:30:14,876 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 16:30:14,877 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 16:30:14,877 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 16:30:14,878 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 16:30:14,902 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 16:30:14,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:30:22,577 INFO L273 TraceCheckUtils]: 104: Hoare triple {35203#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-14 16:30:22,578 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 16:30:22,578 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 16:30:22,579 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 16:30:22,579 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 16:30:22,580 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 16:30:22,580 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 16:30:22,581 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 16:30:22,582 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 16:30:22,583 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 16:30:22,583 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 16:30:22,584 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 16:30:22,585 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 16:30:22,586 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 16:30:22,586 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 16:30:22,587 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 16:30:22,588 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 16:30:22,589 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 16:30:22,589 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 16:30:22,591 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 16:30:22,591 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 16:30:22,592 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 16:30:22,593 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 16:30:22,594 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 16:30:22,594 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 16:30:22,595 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 16:30:22,596 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 16:30:22,597 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 16:30:22,597 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 16:30:22,598 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 16:30:22,599 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 16:30:22,600 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 16:30:22,600 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 16:30:22,601 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 16:30:22,602 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 16:30:22,603 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 16:30:22,604 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 16:30:22,605 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 16:30:22,605 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 16:30:22,606 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 16:30:22,607 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 16:30:22,608 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 16:30:22,608 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 16:30:22,609 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 16:30:22,610 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 16:30:22,611 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 16:30:22,611 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 16:30:22,612 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 16:30:22,613 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 16:30:22,614 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 16:30:22,614 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 16:30:22,616 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 16:30:22,616 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 16:30:22,617 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 16:30:22,618 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 16:30:22,619 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 16:30:22,619 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 16:30:22,620 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 16:30:22,621 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 16:30:22,622 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 16:30:22,622 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 16:30:22,623 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 16:30:22,624 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 16:30:22,625 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 16:30:22,625 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 16:30:22,626 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 16:30:22,627 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 16:30:22,628 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 16:30:22,629 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 16:30:22,630 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 16:30:22,630 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 16:30:22,631 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 16:30:22,632 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 16:30:22,633 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 16:30:22,633 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 16:30:22,634 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 16:30:22,635 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 16:30:22,636 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 16:30:22,636 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 16:30:22,637 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 16:30:22,638 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 16:30:22,639 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 16:30:22,640 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 16:30:22,641 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 16:30:22,641 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 16:30:22,642 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 16:30:22,643 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 16:30:22,644 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 16:30:22,644 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 16:30:22,645 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 16:30:22,646 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 16:30:22,647 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 16:30:22,647 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 16:30:22,648 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 16:30:22,649 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 16:30:22,650 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 16:30:22,650 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 16:30:22,652 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 16:30:22,652 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 16:30:22,653 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 16:30:22,654 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 16:30:22,655 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 16:30:22,655 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 16:30:22,656 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 16:30:22,657 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 16:30:22,696 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 16:30:22,714 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:30:22,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 161 [2019-02-14 16:30:22,715 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:30:22,715 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-14 16:30:22,716 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:30:22,716 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 109 states. [2019-02-14 16:30:22,968 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 16:30:22,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2019-02-14 16:30:22,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2019-02-14 16:30:22,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-14 16:30:22,970 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 109 states. [2019-02-14 16:30:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:42,899 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2019-02-14 16:30:42,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-02-14 16:30:42,900 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-14 16:30:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:30:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-14 16:30:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-14 16:30:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-14 16:30:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-14 16:30:42,903 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 110 transitions. [2019-02-14 16:30:43,019 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 16:30:43,021 INFO L225 Difference]: With dead ends: 110 [2019-02-14 16:30:43,021 INFO L226 Difference]: Without dead ends: 109 [2019-02-14 16:30:43,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5936 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-14 16:30:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-02-14 16:30:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-02-14 16:30:43,127 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:30:43,127 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 108 states. [2019-02-14 16:30:43,127 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 108 states. [2019-02-14 16:30:43,127 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 108 states. [2019-02-14 16:30:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:43,129 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-14 16:30:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-14 16:30:43,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:30:43,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:30:43,130 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 109 states. [2019-02-14 16:30:43,130 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 109 states. [2019-02-14 16:30:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:30:43,131 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-14 16:30:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-14 16:30:43,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:30:43,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:30:43,131 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:30:43,131 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:30:43,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-02-14 16:30:43,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2019-02-14 16:30:43,133 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2019-02-14 16:30:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:30:43,133 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2019-02-14 16:30:43,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 109 states. [2019-02-14 16:30:43,133 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2019-02-14 16:30:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-02-14 16:30:43,133 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:30:43,133 INFO L402 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2019-02-14 16:30:43,133 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:30:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:30:43,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2019-02-14 16:30:43,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:30:43,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:30:43,134 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:30:43,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:30:43,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:30:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:30:46,610 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 16:30:46,612 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 16:30:46,612 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 16:30:46,613 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 16:30:46,614 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 16:30:46,615 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 16:30:46,616 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 16:30:46,617 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 16:30:46,618 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 16:30:46,619 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 16:30:46,620 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 16:30:46,621 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 16:30:46,621 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 16:30:46,623 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 16:30:46,623 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 16:30:46,624 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 16:30:46,625 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 16:30:46,626 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 16:30:46,627 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 16:30:46,628 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 16:30:46,629 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 16:30:46,630 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 16:30:46,631 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 16:30:46,632 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 16:30:46,632 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 16:30:46,633 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 16:30:46,634 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 16:30:46,635 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 16:30:46,636 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 16:30:46,637 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 16:30:46,638 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 16:30:46,639 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 16:30:46,639 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 16:30:46,641 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 16:30:46,641 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 16:30:46,642 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 16:30:46,643 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 16:30:46,644 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 16:30:46,645 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 16:30:46,646 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 16:30:46,647 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 16:30:46,648 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 16:30:46,648 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 16:30:46,649 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 16:30:46,650 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 16:30:46,651 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 16:30:46,652 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 16:30:46,653 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 16:30:46,654 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 16:30:46,655 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 16:30:46,656 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 16:30:46,657 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 16:30:46,657 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 16:30:46,658 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 16:30:46,659 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 16:30:46,660 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 16:30:46,661 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 16:30:46,662 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 16:30:46,663 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 16:30:46,664 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 16:30:46,665 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 16:30:46,666 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 16:30:46,666 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 16:30:46,667 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 16:30:46,668 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 16:30:46,669 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 16:30:46,670 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 16:30:46,671 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 16:30:46,672 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 16:30:46,673 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 16:30:46,673 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 16:30:46,674 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 16:30:46,675 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 16:30:46,676 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 16:30:46,677 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 16:30:46,678 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 16:30:46,679 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 16:30:46,680 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 16:30:46,681 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 16:30:46,682 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 16:30:46,682 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 16:30:46,683 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 16:30:46,684 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 16:30:46,685 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 16:30:46,686 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 16:30:46,687 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 16:30:46,688 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 16:30:46,689 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 16:30:46,689 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 16:30:46,690 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 16:30:46,691 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 16:30:46,692 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 16:30:46,693 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 16:30:46,694 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 16:30:46,695 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 16:30:46,696 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 16:30:46,697 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 16:30:46,698 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 16:30:46,698 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 16:30:46,699 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 16:30:46,700 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 16:30:46,701 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 16:30:46,702 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 16:30:46,703 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 16:30:46,704 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 16:30:46,705 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 16:30:46,706 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 16:30:46,756 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 16:30:46,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:30:46,756 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:30:46,756 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:30:46,756 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:30:46,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:30:46,757 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 16:30:46,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:30:46,766 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:30:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:30:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:30:46,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:30:46,843 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 16:30:46,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:30:46,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:30:46,853 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:30:46,855 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:30:46,855 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 16:30:46,855 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:30:51,438 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 16:30:51,440 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:30:51,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:30:51,446 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:30:51,449 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:30:51,449 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 16:30:51,449 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 208 .cse0)) (<= main_i 212) (<= 208 .cse0))) [2019-02-14 16:30:51,515 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 16:30:51,515 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 16:30:51,516 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 16:30:51,516 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 16:30:51,517 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 16:30:51,518 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 16:30:51,519 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 16:30:51,519 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 16:30:51,520 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 16:30:51,521 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 16:30:51,521 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 16:30:51,522 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 16:30:51,523 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 16:30:51,523 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 16:30:51,524 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 16:30:51,525 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 16:30:51,526 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 16:30:51,526 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 16:30:51,527 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 16:30:51,528 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 16:30:51,528 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 16:30:51,529 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 16:30:51,530 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 16:30:51,530 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 16:30:51,531 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 16:30:51,532 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 16:30:51,532 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 16:30:51,533 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 16:30:51,534 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 16:30:51,534 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 16:30:51,535 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 16:30:51,536 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 16:30:51,536 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 16:30:51,537 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 16:30:51,538 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 16:30:51,539 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 16:30:51,539 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 16:30:51,540 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 16:30:51,540 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 16:30:51,541 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 16:30:51,542 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 16:30:51,542 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 16:30:51,543 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 16:30:51,544 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 16:30:51,545 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 16:30:51,545 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 16:30:51,546 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 16:30:51,547 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 16:30:51,547 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 16:30:51,548 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 16:30:51,549 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 16:30:51,549 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 16:30:51,550 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 16:30:51,551 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 16:30:51,551 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 16:30:51,552 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 16:30:51,553 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 16:30:51,553 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 16:30:51,554 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 16:30:51,555 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 16:30:51,555 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 16:30:51,556 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 16:30:51,557 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 16:30:51,558 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 16:30:51,558 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 16:30:51,559 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 16:30:51,560 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 16:30:51,560 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 16:30:51,561 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 16:30:51,562 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 16:30:51,562 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 16:30:51,563 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 16:30:51,564 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 16:30:51,565 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 16:30:51,565 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 16:30:51,566 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 16:30:51,567 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 16:30:51,568 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 16:30:51,568 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 16:30:51,569 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 16:30:51,570 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 16:30:51,570 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 16:30:51,571 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 16:30:51,572 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 16:30:51,572 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 16:30:51,573 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 16:30:51,574 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 16:30:51,574 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 16:30:51,575 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 16:30:51,576 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 16:30:51,577 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 16:30:51,577 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 16:30:51,578 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 16:30:51,579 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 16:30:51,579 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 16:30:51,580 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 16:30:51,581 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 16:30:51,581 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 16:30:51,582 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 16:30:51,583 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 16:30:51,583 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 16:30:51,584 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 16:30:51,585 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 16:30:51,585 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 16:30:51,586 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 16:30:51,587 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 16:30:51,588 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 16:30:51,612 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 16:30:51,612 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:31:00,034 INFO L273 TraceCheckUtils]: 106: Hoare triple {36543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-14 16:31:00,035 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 16:31:00,035 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 16:31:00,036 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 16:31:00,036 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 16:31:00,037 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 16:31:00,037 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 16:31:00,038 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 16:31:00,039 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 16:31:00,040 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 16:31:00,040 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 16:31:00,041 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 16:31:00,042 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 16:31:00,043 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 16:31:00,043 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 16:31:00,045 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 16:31:00,045 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 16:31:00,046 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 16:31:00,047 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 16:31:00,048 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 16:31:00,049 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 16:31:00,050 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 16:31:00,050 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 16:31:00,052 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 16:31:00,052 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 16:31:00,053 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 16:31:00,054 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 16:31:00,055 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 16:31:00,056 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 16:31:00,057 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 16:31:00,057 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 16:31:00,058 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 16:31:00,059 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 16:31:00,060 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 16:31:00,061 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 16:31:00,062 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 16:31:00,062 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 16:31:00,063 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 16:31:00,064 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 16:31:00,065 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 16:31:00,065 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 16:31:00,067 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 16:31:00,067 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 16:31:00,068 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 16:31:00,069 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 16:31:00,070 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 16:31:00,070 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 16:31:00,072 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 16:31:00,072 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 16:31:00,073 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 16:31:00,074 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 16:31:00,075 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 16:31:00,076 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 16:31:00,077 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 16:31:00,077 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 16:31:00,078 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 16:31:00,079 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 16:31:00,080 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 16:31:00,080 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 16:31:00,081 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 16:31:00,082 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 16:31:00,083 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 16:31:00,084 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 16:31:00,085 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 16:31:00,085 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 16:31:00,086 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 16:31:00,087 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 16:31:00,088 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 16:31:00,088 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 16:31:00,089 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 16:31:00,090 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 16:31:00,091 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 16:31:00,092 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 16:31:00,093 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 16:31:00,093 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 16:31:00,094 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 16:31:00,095 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 16:31:00,096 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 16:31:00,096 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 16:31:00,097 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 16:31:00,098 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 16:31:00,099 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 16:31:00,100 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 16:31:00,101 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 16:31:00,101 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 16:31:00,102 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 16:31:00,103 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 16:31:00,104 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 16:31:00,104 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 16:31:00,105 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 16:31:00,106 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 16:31:00,107 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 16:31:00,108 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 16:31:00,109 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 16:31:00,109 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 16:31:00,110 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 16:31:00,111 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 16:31:00,112 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 16:31:00,112 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 16:31:00,113 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 16:31:00,114 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 16:31:00,115 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 16:31:00,116 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 16:31:00,117 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 16:31:00,117 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 16:31:00,118 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 16:31:00,119 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 16:31:00,160 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 16:31:00,178 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:31:00,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 164 [2019-02-14 16:31:00,179 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:31:00,179 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-14 16:31:00,179 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:31:00,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 111 states. [2019-02-14 16:31:00,457 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 16:31:00,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2019-02-14 16:31:00,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2019-02-14 16:31:00,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-14 16:31:00,459 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 111 states. [2019-02-14 16:31:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:15,329 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2019-02-14 16:31:15,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-02-14 16:31:15,329 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-14 16:31:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:31:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-14 16:31:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-14 16:31:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-14 16:31:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-14 16:31:15,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 112 transitions. [2019-02-14 16:31:15,453 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 16:31:15,455 INFO L225 Difference]: With dead ends: 112 [2019-02-14 16:31:15,456 INFO L226 Difference]: Without dead ends: 111 [2019-02-14 16:31:15,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6156 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-14 16:31:15,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-02-14 16:31:15,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2019-02-14 16:31:15,560 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:31:15,561 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states. Second operand 110 states. [2019-02-14 16:31:15,561 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states. Second operand 110 states. [2019-02-14 16:31:15,561 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 110 states. [2019-02-14 16:31:15,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:15,563 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-14 16:31:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-14 16:31:15,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:31:15,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:31:15,563 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 111 states. [2019-02-14 16:31:15,563 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 111 states. [2019-02-14 16:31:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:15,564 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-14 16:31:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-14 16:31:15,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:31:15,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:31:15,565 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:31:15,565 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:31:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-02-14 16:31:15,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2019-02-14 16:31:15,566 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2019-02-14 16:31:15,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:31:15,566 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2019-02-14 16:31:15,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 111 states. [2019-02-14 16:31:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2019-02-14 16:31:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-02-14 16:31:15,567 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:31:15,567 INFO L402 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2019-02-14 16:31:15,567 INFO L423 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:31:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:31:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2019-02-14 16:31:15,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:31:15,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:31:15,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:31:15,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:31:15,568 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:31:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:31:16,056 WARN L181 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:31:16,554 WARN L181 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:31:17,040 WARN L181 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:31:20,396 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 16:31:20,397 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 16:31:20,398 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 16:31:20,399 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 16:31:20,400 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 16:31:20,401 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 16:31:20,401 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 16:31:20,402 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 16:31:20,403 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 16:31:20,404 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 16:31:20,405 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 16:31:20,406 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 16:31:20,407 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 16:31:20,408 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 16:31:20,408 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 16:31:20,410 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 16:31:20,410 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 16:31:20,411 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 16:31:20,412 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 16:31:20,413 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 16:31:20,414 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 16:31:20,415 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 16:31:20,416 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 16:31:20,417 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 16:31:20,417 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 16:31:20,418 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 16:31:20,419 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 16:31:20,420 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 16:31:20,421 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 16:31:20,422 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 16:31:20,423 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 16:31:20,424 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 16:31:20,424 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 16:31:20,425 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 16:31:20,426 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 16:31:20,427 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 16:31:20,428 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 16:31:20,429 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 16:31:20,430 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 16:31:20,431 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 16:31:20,432 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 16:31:20,433 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 16:31:20,433 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 16:31:20,434 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 16:31:20,435 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 16:31:20,436 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 16:31:20,437 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 16:31:20,438 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 16:31:20,439 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 16:31:20,440 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 16:31:20,440 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 16:31:20,442 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 16:31:20,442 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 16:31:20,443 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 16:31:20,444 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 16:31:20,445 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 16:31:20,446 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 16:31:20,447 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 16:31:20,448 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 16:31:20,449 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 16:31:20,449 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 16:31:20,450 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 16:31:20,451 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 16:31:20,452 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 16:31:20,453 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 16:31:20,454 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 16:31:20,455 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 16:31:20,456 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 16:31:20,456 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 16:31:20,457 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 16:31:20,458 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 16:31:20,459 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 16:31:20,460 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 16:31:20,461 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 16:31:20,462 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 16:31:20,463 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 16:31:20,463 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 16:31:20,465 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 16:31:20,465 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 16:31:20,466 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 16:31:20,467 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 16:31:20,468 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 16:31:20,469 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 16:31:20,470 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 16:31:20,471 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 16:31:20,472 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 16:31:20,472 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 16:31:20,473 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 16:31:20,474 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 16:31:20,475 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 16:31:20,476 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 16:31:20,477 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 16:31:20,478 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 16:31:20,479 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 16:31:20,480 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 16:31:20,481 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 16:31:20,481 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 16:31:20,482 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 16:31:20,483 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 16:31:20,484 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 16:31:20,485 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 16:31:20,486 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 16:31:20,487 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 16:31:20,488 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 16:31:20,488 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 16:31:20,490 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 16:31:20,491 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 16:31:20,492 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 16:31:20,492 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 16:31:20,543 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 16:31:20,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:31:20,543 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:31:20,543 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:31:20,543 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:31:20,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:31:20,544 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 16:31:20,554 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:31:20,554 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:31:20,640 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2019-02-14 16:31:20,640 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:31:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:31:20,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:31:20,663 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 16:31:20,675 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:31:20,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:31:20,679 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:31:20,681 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:31:20,681 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 16:31:20,682 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:31:25,476 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 16:31:25,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:31:25,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:31:25,484 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:31:25,486 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:31:25,486 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 16:31:25,487 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= 212 .cse0)) (<= 212 .cse0))) [2019-02-14 16:31:25,552 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 16:31:25,552 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 16:31:25,553 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 16:31:25,554 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 16:31:25,554 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 16:31:25,555 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 16:31:25,556 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 16:31:25,556 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 16:31:25,557 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 16:31:25,558 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 16:31:25,558 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 16:31:25,559 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 16:31:25,560 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 16:31:25,560 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 16:31:25,561 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 16:31:25,562 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 16:31:25,562 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 16:31:25,563 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 16:31:25,564 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 16:31:25,564 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 16:31:25,565 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 16:31:25,566 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 16:31:25,566 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 16:31:25,567 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 16:31:25,568 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 16:31:25,568 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 16:31:25,569 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 16:31:25,570 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 16:31:25,570 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 16:31:25,571 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 16:31:25,572 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 16:31:25,572 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 16:31:25,573 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 16:31:25,574 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 16:31:25,574 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 16:31:25,575 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 16:31:25,576 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 16:31:25,576 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 16:31:25,577 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 16:31:25,578 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 16:31:25,578 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 16:31:25,579 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 16:31:25,580 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 16:31:25,580 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 16:31:25,581 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 16:31:25,582 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 16:31:25,582 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 16:31:25,583 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 16:31:25,584 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 16:31:25,584 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 16:31:25,585 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 16:31:25,586 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 16:31:25,586 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 16:31:25,587 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 16:31:25,588 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 16:31:25,588 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 16:31:25,589 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 16:31:25,590 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 16:31:25,590 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 16:31:25,591 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 16:31:25,592 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 16:31:25,592 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 16:31:25,593 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 16:31:25,594 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 16:31:25,595 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 16:31:25,595 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 16:31:25,596 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 16:31:25,597 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 16:31:25,597 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 16:31:25,598 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 16:31:25,599 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 16:31:25,599 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 16:31:25,600 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 16:31:25,601 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 16:31:25,601 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 16:31:25,602 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 16:31:25,603 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 16:31:25,604 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 16:31:25,604 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 16:31:25,605 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 16:31:25,605 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 16:31:25,606 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 16:31:25,607 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 16:31:25,608 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 16:31:25,608 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 16:31:25,609 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 16:31:25,609 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 16:31:25,610 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 16:31:25,611 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 16:31:25,612 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 16:31:25,612 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 16:31:25,613 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 16:31:25,613 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 16:31:25,614 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 16:31:25,615 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 16:31:25,616 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 16:31:25,616 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 16:31:25,617 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 16:31:25,617 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 16:31:25,618 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 16:31:25,619 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 16:31:25,619 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 16:31:25,620 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 16:31:25,621 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 16:31:25,621 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 16:31:25,622 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 16:31:25,623 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 16:31:25,624 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 16:31:25,624 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 16:31:25,649 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 16:31:25,649 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:31:33,706 INFO L273 TraceCheckUtils]: 108: Hoare triple {37908#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-14 16:31:33,707 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 16:31:33,707 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 16:31:33,708 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 16:31:33,709 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 16:31:33,709 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 16:31:33,710 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 16:31:33,711 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 16:31:33,711 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 16:31:33,712 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 16:31:33,713 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 16:31:33,714 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 16:31:33,714 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 16:31:33,715 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 16:31:33,716 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 16:31:33,717 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 16:31:33,718 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 16:31:33,719 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 16:31:33,719 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 16:31:33,720 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 16:31:33,721 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 16:31:33,722 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 16:31:33,722 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 16:31:33,724 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 16:31:33,724 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 16:31:33,725 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 16:31:33,726 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 16:31:33,727 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 16:31:33,727 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 16:31:33,728 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 16:31:33,729 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 16:31:33,730 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 16:31:33,730 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 16:31:33,731 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 16:31:33,732 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 16:31:33,733 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 16:31:33,733 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 16:31:33,735 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 16:31:33,735 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 16:31:33,736 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 16:31:33,737 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 16:31:33,738 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 16:31:33,738 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 16:31:33,739 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 16:31:33,740 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 16:31:33,741 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 16:31:33,741 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 16:31:33,742 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 16:31:33,743 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 16:31:33,744 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 16:31:33,744 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 16:31:33,745 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 16:31:33,746 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 16:31:33,747 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 16:31:33,748 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 16:31:33,749 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 16:31:33,749 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 16:31:33,750 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 16:31:33,751 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 16:31:33,752 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 16:31:33,752 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 16:31:33,753 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 16:31:33,754 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 16:31:33,755 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 16:31:33,755 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 16:31:33,756 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 16:31:33,757 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 16:31:33,758 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 16:31:33,759 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 16:31:33,760 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 16:31:33,760 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 16:31:33,761 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 16:31:33,762 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 16:31:33,763 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 16:31:33,763 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 16:31:33,764 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 16:31:33,765 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 16:31:33,766 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 16:31:33,766 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 16:31:33,767 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 16:31:33,768 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 16:31:33,769 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 16:31:33,769 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 16:31:33,771 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 16:31:33,771 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 16:31:33,772 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 16:31:33,773 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 16:31:33,774 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 16:31:33,774 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 16:31:33,776 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 16:31:33,776 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 16:31:33,777 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 16:31:33,778 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 16:31:33,779 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 16:31:33,780 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 16:31:33,781 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 16:31:33,782 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 16:31:33,783 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 16:31:33,784 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 16:31:33,785 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 16:31:33,785 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 16:31:33,787 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 16:31:33,787 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 16:31:33,788 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 16:31:33,789 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 16:31:33,790 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 16:31:33,791 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 16:31:33,792 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 16:31:33,793 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 16:31:33,864 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 16:31:33,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:31:33,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 167 [2019-02-14 16:31:33,883 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:31:33,884 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-02-14 16:31:33,884 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:31:33,884 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2019-02-14 16:31:34,148 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 16:31:34,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2019-02-14 16:31:34,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2019-02-14 16:31:34,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-02-14 16:31:34,150 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 113 states. [2019-02-14 16:31:52,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:52,003 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2019-02-14 16:31:52,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-02-14 16:31:52,003 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-02-14 16:31:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:31:52,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-02-14 16:31:52,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-02-14 16:31:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-02-14 16:31:52,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-02-14 16:31:52,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states and 114 transitions. [2019-02-14 16:31:52,127 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 16:31:52,129 INFO L225 Difference]: With dead ends: 114 [2019-02-14 16:31:52,129 INFO L226 Difference]: Without dead ends: 113 [2019-02-14 16:31:52,131 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6380 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-02-14 16:31:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-02-14 16:31:52,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2019-02-14 16:31:52,234 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:31:52,234 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 112 states. [2019-02-14 16:31:52,235 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 112 states. [2019-02-14 16:31:52,235 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 112 states. [2019-02-14 16:31:52,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:52,237 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-02-14 16:31:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-02-14 16:31:52,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:31:52,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:31:52,237 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 113 states. [2019-02-14 16:31:52,237 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 113 states. [2019-02-14 16:31:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:31:52,239 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-02-14 16:31:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-02-14 16:31:52,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:31:52,239 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:31:52,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:31:52,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:31:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-02-14 16:31:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2019-02-14 16:31:52,241 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2019-02-14 16:31:52,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:31:52,241 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2019-02-14 16:31:52,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 113 states. [2019-02-14 16:31:52,241 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2019-02-14 16:31:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-02-14 16:31:52,242 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:31:52,242 INFO L402 BasicCegarLoop]: trace histogram [55, 54, 1, 1] [2019-02-14 16:31:52,242 INFO L423 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:31:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:31:52,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1262778548, now seen corresponding path program 54 times [2019-02-14 16:31:52,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:31:52,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:31:52,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:31:52,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:31:52,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:31:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat