/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 23:23:15,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 23:23:15,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 23:23:15,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 23:23:15,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 23:23:15,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 23:23:15,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 23:23:15,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 23:23:15,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 23:23:15,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 23:23:15,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 23:23:15,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 23:23:15,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 23:23:15,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 23:23:15,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 23:23:15,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 23:23:15,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 23:23:15,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 23:23:15,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 23:23:15,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 23:23:15,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 23:23:15,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 23:23:15,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 23:23:15,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 23:23:15,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 23:23:15,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 23:23:15,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 23:23:15,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 23:23:15,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-01 23:23:15,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 23:23:15,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 23:23:15,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 23:23:15,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 23:23:15,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 23:23:15,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 23:23:15,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 23:23:15,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 23:23:15,445 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 23:23:15,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 23:23:15,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 23:23:15,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:23:15,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 23:23:15,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 23:23:15,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 23:23:15,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 23:23:15,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 23:23:15,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 23:23:15,632 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 23:23:15,634 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 23:23:15,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2022-03-01 23:23:15,635 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2022-03-01 23:23:15,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 23:23:15,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 23:23:15,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 23:23:15,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 23:23:15,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 23:23:15,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,685 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 23:23:15,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 23:23:15,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 23:23:15,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 23:23:15,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 23:23:15,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 23:23:15,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 23:23:15,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 23:23:15,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 23:23:15,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/1) ... [2022-03-01 23:23:15,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:23:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:15,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 23:23:15,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 23:23:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 23:23:15,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 23:23:15,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 23:23:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 23:23:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 23:23:15,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 23:23:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 23:23:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 23:23:15,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-01 23:23:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 23:23:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 23:23:15,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-01 23:23:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 23:23:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 23:23:15,747 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 23:23:15,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 23:23:15,781 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 23:23:15,782 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 23:23:15,853 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 23:23:15,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 23:23:15,869 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-01 23:23:15,869 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-03-01 23:23:15,870 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-03-01 23:23:15,870 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2022-03-01 23:23:15,871 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:23:15 BoogieIcfgContainer [2022-03-01 23:23:15,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 23:23:15,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 23:23:15,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 23:23:15,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 23:23:15,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:23:15" (1/2) ... [2022-03-01 23:23:15,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a90b33 and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 11:23:15, skipping insertion in model container [2022-03-01 23:23:15,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:23:15" (2/2) ... [2022-03-01 23:23:15,877 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2022-03-01 23:23:15,880 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 23:23:15,880 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 23:23:15,880 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 23:23:15,880 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 23:23:15,949 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-03-01 23:23:15,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 23:23:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:15,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-01 23:23:15,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-01 23:23:16,017 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 23:23:16,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-01 23:23:16,023 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-01 23:23:16,153 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 152 transitions and produced 123 states. [2022-03-01 23:23:16,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 23:23:16,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:23:16,161 INFO L85 PathProgramCache]: Analyzing trace with hash 486998124, now seen corresponding path program 1 times [2022-03-01 23:23:16,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:23:16,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494054098] [2022-03-01 23:23:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:23:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:16,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:23:16,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494054098] [2022-03-01 23:23:16,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494054098] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:23:16,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459721746] [2022-03-01 23:23:16,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:16,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:16,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:16,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:23:16,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 23:23:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:16,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-01 23:23:16,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:23:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:16,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:23:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:16,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459721746] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:23:16,875 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:23:16,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2022-03-01 23:23:16,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636979449] [2022-03-01 23:23:16,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:23:16,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-01 23:23:16,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:23:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-01 23:23:16,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-03-01 23:23:16,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:16,911 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:23:16,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 23:23:16,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:17,253 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 133 transitions and produced 127 states. [2022-03-01 23:23:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:23:17,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 23:23:17,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-01 23:23:17,468 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 23:23:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:23:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1581844943, now seen corresponding path program 1 times [2022-03-01 23:23:17,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:23:17,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171837178] [2022-03-01 23:23:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:17,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:23:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:18,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:23:18,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171837178] [2022-03-01 23:23:18,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171837178] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:23:18,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339841508] [2022-03-01 23:23:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:18,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:18,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:23:18,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 23:23:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:18,623 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-01 23:23:18,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:23:19,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2022-03-01 23:23:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:20,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:23:21,883 INFO L353 Elim1Store]: treesize reduction 222, result has 59.0 percent of original size [2022-03-01 23:23:21,883 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 61 treesize of output 344 [2022-03-01 23:23:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:24,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339841508] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:23:24,081 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:23:24,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 28, 28] total 78 [2022-03-01 23:23:24,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373714912] [2022-03-01 23:23:24,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:23:24,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-01 23:23:24,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:23:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-01 23:23:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=5783, Unknown=0, NotChecked=0, Total=6006 [2022-03-01 23:23:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:24,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:23:24,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 23:23:24,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:23:24,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:26,838 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 212 transitions and produced 184 states. [2022-03-01 23:23:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:23:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 23:23:26,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 23:23:27,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:27,039 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 23:23:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:23:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1017088726, now seen corresponding path program 2 times [2022-03-01 23:23:27,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:23:27,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448727482] [2022-03-01 23:23:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:27,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:23:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:27,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:23:27,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448727482] [2022-03-01 23:23:27,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448727482] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:23:27,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249755067] [2022-03-01 23:23:27,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 23:23:27,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:27,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:27,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:23:27,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 23:23:27,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 23:23:27,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:23:27,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-01 23:23:27,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:23:27,487 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:27,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:23:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:27,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249755067] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:23:27,668 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:23:27,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 37 [2022-03-01 23:23:27,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409383067] [2022-03-01 23:23:27,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:23:27,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-01 23:23:27,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:23:27,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-01 23:23:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1009, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 23:23:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:27,670 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:23:27,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 37 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 23:23:27,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:23:27,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-01 23:23:27,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:23:28,107 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 213 transitions and produced 203 states. [2022-03-01 23:23:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:23:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 23:23:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 23:23:28,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 23:23:28,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:28,316 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 23:23:28,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:23:28,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2081311953, now seen corresponding path program 2 times [2022-03-01 23:23:28,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:23:28,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061138424] [2022-03-01 23:23:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:23:28,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:23:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:23:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 63 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:30,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:23:30,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061138424] [2022-03-01 23:23:30,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061138424] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:23:30,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438124306] [2022-03-01 23:23:30,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 23:23:30,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:23:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:23:30,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:23:30,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 23:23:30,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 23:23:30,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:23:30,655 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 142 conjunts are in the unsatisfiable core [2022-03-01 23:23:30,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:23:36,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:23:36,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:36,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 55 disjoint index pairs (out of 231 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 63 [2022-03-01 23:23:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:23:36,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:23:49,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:49,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:23:51,285 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 23:23:51,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 110 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 121 case distinctions, treesize of input 181 treesize of output 1242 [2022-03-01 23:24:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:24:55,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438124306] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:24:55,332 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:24:55,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 137 [2022-03-01 23:24:55,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702568419] [2022-03-01 23:24:55,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:24:55,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-03-01 23:24:55,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:24:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-03-01 23:24:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=899, Invalid=17733, Unknown=0, NotChecked=0, Total=18632 [2022-03-01 23:24:55,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:24:55,337 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:24:55,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 1.1094890510948905) internal successors, (152), 137 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 23:24:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:24:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-01 23:24:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-01 23:24:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:25:05,262 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 229 transitions and produced 215 states. [2022-03-01 23:25:05,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 23:25:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 23:25:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 23:25:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-01 23:25:05,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-01 23:25:05,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:25:05,469 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 23:25:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:25:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash 121005553, now seen corresponding path program 3 times [2022-03-01 23:25:05,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:25:05,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777527849] [2022-03-01 23:25:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:25:05,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:25:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:25:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:25:08,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:25:08,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777527849] [2022-03-01 23:25:08,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777527849] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:25:08,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077238776] [2022-03-01 23:25:08,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 23:25:08,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:25:08,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:25:08,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:25:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 23:25:08,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-03-01 23:25:08,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:25:08,479 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 153 conjunts are in the unsatisfiable core [2022-03-01 23:25:08,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:25:23,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 23:25:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:25:23,859 INFO L244 Elim1Store]: Index analysis took 140 ms [2022-03-01 23:25:24,840 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 23:25:24,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 60 disjoint index pairs (out of 276 index pairs), introduced 18 new quantified variables, introduced 165 case distinctions, treesize of input 170 treesize of output 1102 [2022-03-01 23:28:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:28:53,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-01 23:37:35,086 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 23:37:35,087 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 23:37:35,087 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 23:37:36,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-01 23:37:36,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 23:37:36,295 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-03-01 23:37:36,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-03-01 23:37:36,365 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-01 23:37:36,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 23:37:36,365 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2022-03-01 23:37:36,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4INUSE_VIOLATION (5 of 7 remaining) [2022-03-01 23:37:36,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5INUSE_VIOLATION (4 of 7 remaining) [2022-03-01 23:37:36,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-01 23:37:36,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-01 23:37:36,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION (1 of 7 remaining) [2022-03-01 23:37:36,367 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION (0 of 7 remaining) [2022-03-01 23:37:36,372 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2] [2022-03-01 23:37:36,374 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 23:37:36,374 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 23:37:36,375 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 11:37:36 BasicIcfg [2022-03-01 23:37:36,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 23:37:36,376 INFO L158 Benchmark]: Toolchain (without parser) took 860719.89ms. Allocated memory was 179.3MB in the beginning and 659.6MB in the end (delta: 480.2MB). Free memory was 143.7MB in the beginning and 566.9MB in the end (delta: -423.3MB). Peak memory consumption was 57.0MB. Max. memory is 8.0GB. [2022-03-01 23:37:36,376 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 23:37:36,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.10ms. Allocated memory is still 179.3MB. Free memory was 143.6MB in the beginning and 142.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 23:37:36,376 INFO L158 Benchmark]: Boogie Preprocessor took 10.86ms. Allocated memory is still 179.3MB. Free memory was 142.0MB in the beginning and 141.1MB in the end (delta: 951.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 23:37:36,376 INFO L158 Benchmark]: RCFGBuilder took 170.56ms. Allocated memory is still 179.3MB. Free memory was 141.0MB in the beginning and 130.8MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-01 23:37:36,377 INFO L158 Benchmark]: TraceAbstraction took 860503.14ms. Allocated memory was 179.3MB in the beginning and 659.6MB in the end (delta: 480.2MB). Free memory was 130.2MB in the beginning and 566.9MB in the end (delta: -436.7MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. [2022-03-01 23:37:36,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.10ms. Allocated memory is still 179.3MB. Free memory was 143.6MB in the beginning and 142.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.86ms. Allocated memory is still 179.3MB. Free memory was 142.0MB in the beginning and 141.1MB in the end (delta: 951.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 170.56ms. Allocated memory is still 179.3MB. Free memory was 141.0MB in the beginning and 130.8MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 860503.14ms. Allocated memory was 179.3MB in the beginning and 659.6MB in the end (delta: 480.2MB). Free memory was 130.2MB in the beginning and 566.9MB in the end (delta: -436.7MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 860.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 13.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 94.5s InterpolantComputationTime, 364 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 534 ConstructedInterpolants, 45 QuantifiedInterpolants, 17328 SizeOfPredicates, 53 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 254 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 354/1443 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown