/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:29:11,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:29:11,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:29:11,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:29:11,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:29:11,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:29:11,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:29:11,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:29:11,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:29:11,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:29:11,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:29:11,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:29:11,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:29:11,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:29:11,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:29:11,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:29:11,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:29:11,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:29:11,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:29:11,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:29:11,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:29:11,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:29:11,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:29:11,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:29:11,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:29:11,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:29:11,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:29:11,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:29:11,525 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-MCRwithoutDepranks-Lazy.epf [2022-03-02 10:29:11,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:29:11,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:29:11,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:29:11,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:29:11,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:29:11,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:29:11,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:29:11,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:29:11,545 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:29:11,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:29:11,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:29:11,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:29:11,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:29:11,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:29:11,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:29:11,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:29:11,548 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:29:11,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:29:11,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:29:11,549 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:29:11,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:29:11,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:29:11,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:29:11,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:29:11,748 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:29:11,756 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:29:11,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2022-03-02 10:29:11,758 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2022-03-02 10:29:11,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:29:11,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:29:11,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:29:11,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:29:11,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:29:11,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,827 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:29:11,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:29:11,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:29:11,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:29:11,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:29:11,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:29:11,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:29:11,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:29:11,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:29:11,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/1) ... [2022-03-02 10:29:11,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:29:11,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:29:11,888 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) [2022-03-02 10:29:11,907 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 [2022-03-02 10:29:11,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:29:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:29:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:29:11,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:29:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:29:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:29:11,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:29:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:29:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:29:11,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 10:29:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 10:29:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 10:29:11,924 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:29:11,958 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:29:11,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:29:12,021 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:29:12,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:29:12,026 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:29:12,027 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:29:12 BoogieIcfgContainer [2022-03-02 10:29:12,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:29:12,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:29:12,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:29:12,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:29:12,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:29:11" (1/2) ... [2022-03-02 10:29:12,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4d3bcc and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:29:12, skipping insertion in model container [2022-03-02 10:29:12,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:29:12" (2/2) ... [2022-03-02 10:29:12,032 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2022-03-02 10:29:12,036 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:29:12,036 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:29:12,036 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:29:12,036 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:29:12,059 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 10:29:12,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:29:12,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:29:12,107 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) [2022-03-02 10:29:12,108 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 [2022-03-02 10:29:12,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:29:12,131 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=true, mMcrOverapproximateWrwc=true [2022-03-02 10:29:12,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 10:29:12,620 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1095 transitions and produced 1015 states. [2022-03-02 10:29:12,622 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:29:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:29:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash 733569403, now seen corresponding path program 1 times [2022-03-02 10:29:12,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:29:12,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134366118] [2022-03-02 10:29:12,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:29:12,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:29:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:29:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 5584 proven. 4549 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-02 10:29:14,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:29:14,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134366118] [2022-03-02 10:29:14,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134366118] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:29:14,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768579609] [2022-03-02 10:29:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:29:14,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:29:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:29:14,918 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) [2022-03-02 10:29:14,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:29:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:29:15,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-02 10:29:15,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:29:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 4697 proven. 5424 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-02 10:29:18,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:29:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 5727 proven. 4415 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-02 10:29:21,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768579609] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:29:21,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:29:21,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 73, 87] total 211 [2022-03-02 10:29:21,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973677588] [2022-03-02 10:29:21,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:29:21,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2022-03-02 10:29:21,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:29:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2022-03-02 10:29:21,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13237, Invalid=31073, Unknown=0, NotChecked=0, Total=44310 [2022-03-02 10:29:21,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:29:21,961 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:29:21,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 3.3981042654028437) internal successors, (717), 211 states have internal predecessors, (717), 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) [2022-03-02 10:29:21,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:29:33,435 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2251 transitions and produced 2143 states. [2022-03-02 10:29:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:29:33,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:29:33,652 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 [2022-03-02 10:29:33,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:29:33,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:29:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash -277037548, now seen corresponding path program 2 times [2022-03-02 10:29:33,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:29:33,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003026790] [2022-03-02 10:29:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:29:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:29:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:29:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 15859 proven. 11658 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-02 10:29:40,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:29:40,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003026790] [2022-03-02 10:29:40,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003026790] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:29:40,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158118559] [2022-03-02 10:29:40,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:29:40,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:29:40,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:29:40,058 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) [2022-03-02 10:29:40,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:29:40,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:29:40,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:29:40,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 194 conjunts are in the unsatisfiable core [2022-03-02 10:29:40,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:29:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 12865 proven. 14655 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:29:51,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:30:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 10397 proven. 17144 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-02 10:30:05,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158118559] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:30:05,529 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:30:05,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [177, 179, 193] total 455 [2022-03-02 10:30:05,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173257781] [2022-03-02 10:30:05,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:30:05,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 455 states [2022-03-02 10:30:05,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:30:05,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 455 interpolants. [2022-03-02 10:30:05,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44650, Invalid=161920, Unknown=0, NotChecked=0, Total=206570 [2022-03-02 10:30:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:30:05,582 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:30:05,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 455 states, 455 states have (on average 3.142857142857143) internal successors, (1430), 455 states have internal predecessors, (1430), 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) [2022-03-02 10:30:05,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:30:05,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:30:48,100 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3610 transitions and produced 3447 states. [2022-03-02 10:30:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:30:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:30:48,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:30:48,318 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 [2022-03-02 10:30:48,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:30:48,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:30:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash -26151443, now seen corresponding path program 3 times [2022-03-02 10:30:48,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:30:48,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421531904] [2022-03-02 10:30:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:30:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:30:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:31:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 32994 proven. 42496 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-02 10:31:08,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:31:08,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421531904] [2022-03-02 10:31:08,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421531904] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:31:08,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504940845] [2022-03-02 10:31:08,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:31:08,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:31:08,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:31:08,249 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) [2022-03-02 10:31:08,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:31:12,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 168 check-sat command(s) [2022-03-02 10:31:12,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:31:12,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 329 conjunts are in the unsatisfiable core [2022-03-02 10:31:12,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:31:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 28482 proven. 47011 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:31:34,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:31:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 23208 proven. 52306 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-02 10:31:55,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504940845] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:31:55,822 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:31:55,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [312, 314, 328] total 628 [2022-03-02 10:31:55,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766324140] [2022-03-02 10:31:55,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:31:55,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 628 states [2022-03-02 10:31:55,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:31:55,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 628 interpolants. [2022-03-02 10:31:55,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74891, Invalid=318865, Unknown=0, NotChecked=0, Total=393756 [2022-03-02 10:31:55,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:31:55,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:31:55,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 628 states, 628 states have (on average 3.111464968152866) internal successors, (1954), 628 states have internal predecessors, (1954), 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) [2022-03-02 10:31:55,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:31:55,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:31:55,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:33:42,990 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4411 transitions and produced 4238 states. [2022-03-02 10:33:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:33:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:33:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 760 states. [2022-03-02 10:33:43,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 10:33:43,207 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 [2022-03-02 10:33:43,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:33:43,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:33:43,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1080543540, now seen corresponding path program 4 times [2022-03-02 10:33:43,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:33:43,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948421281] [2022-03-02 10:33:43,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:33:43,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:33:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:34:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 56477 proven. 49377 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-02 10:34:07,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:34:07,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948421281] [2022-03-02 10:34:07,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948421281] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:34:07,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321281182] [2022-03-02 10:34:07,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:34:07,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:34:07,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:34:07,993 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) [2022-03-02 10:34:07,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 10:34:08,328 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:34:08,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:34:08,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 384 conjunts are in the unsatisfiable core [2022-03-02 10:34:08,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:34:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 50447 proven. 55410 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:34:43,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:35:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 42367 proven. 63511 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-02 10:35:22,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321281182] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:35:22,118 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:35:22,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [367, 369, 383] total 823 [2022-03-02 10:35:22,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665960764] [2022-03-02 10:35:22,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:35:22,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 823 states [2022-03-02 10:35:22,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:35:22,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 823 interpolants. [2022-03-02 10:35:22,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143962, Invalid=532544, Unknown=0, NotChecked=0, Total=676506 [2022-03-02 10:35:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:35:22,177 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:35:22,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 823 states, 823 states have (on average 3.0765492102065615) internal successors, (2532), 823 states have internal predecessors, (2532), 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) [2022-03-02 10:35:22,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:35:22,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:35:22,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 760 states. [2022-03-02 10:35:22,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:38:49,788 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5684 transitions and produced 5464 states. [2022-03-02 10:38:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:38:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:38:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 760 states. [2022-03-02 10:38:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1008 states. [2022-03-02 10:38:49,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 10:38:50,005 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 [2022-03-02 10:38:50,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 10:38:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:38:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1947329037, now seen corresponding path program 5 times [2022-03-02 10:38:50,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:38:50,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125149198] [2022-03-02 10:38:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:38:50,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:38:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:39:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 184010 backedges. 86308 proven. 97675 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-02 10:39:33,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:39:33,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125149198] [2022-03-02 10:39:33,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125149198] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:39:33,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740558326] [2022-03-02 10:39:33,457 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:39:33,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:39:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:39:33,459 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) [2022-03-02 10:39:33,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 10:39:45,554 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 260 check-sat command(s) [2022-03-02 10:39:45,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:39:45,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 507 conjunts are in the unsatisfiable core [2022-03-02 10:39:45,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:40:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 184010 backedges. 78760 proven. 105226 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:40:38,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:41:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 184010 backedges. 67874 proven. 116133 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-02 10:41:29,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740558326] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:41:29,583 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:41:29,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [490, 492, 506] total 1002 [2022-03-02 10:41:29,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218693732] [2022-03-02 10:41:29,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:41:29,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1002 states [2022-03-02 10:41:29,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:41:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1002 interpolants. [2022-03-02 10:41:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201264, Invalid=801738, Unknown=0, NotChecked=0, Total=1003002 [2022-03-02 10:41:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:41:29,652 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:41:29,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1002 states, 1002 states have (on average 3.0698602794411176) internal successors, (3076), 1002 states have internal predecessors, (3076), 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) [2022-03-02 10:41:29,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-02 10:41:29,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:41:29,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 760 states. [2022-03-02 10:41:29,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1008 states. [2022-03-02 10:41:29,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-02 10:43:09,338 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 [2022-03-02 10:43:09,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 10:43:09,338 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 [2022-03-02 10:43:09,338 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 [2022-03-02 10:43:09,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:43:09,519 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-02 10:43:09,533 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 10:43:09,533 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 10:43:09,533 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 10:43:09,533 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 10:43:09,538 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-02 10:43:09,540 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:43:09,540 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:43:09,543 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:43:09 BasicIcfg [2022-03-02 10:43:09,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:43:09,544 INFO L158 Benchmark]: Toolchain (without parser) took 837751.17ms. Allocated memory was 209.7MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 172.9MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-02 10:43:09,544 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:43:09,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.66ms. Allocated memory is still 209.7MB. Free memory was 172.8MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-02 10:43:09,544 INFO L158 Benchmark]: Boogie Preprocessor took 22.34ms. Allocated memory is still 209.7MB. Free memory was 171.3MB in the beginning and 170.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:43:09,544 INFO L158 Benchmark]: RCFGBuilder took 173.42ms. Allocated memory is still 209.7MB. Free memory was 170.2MB in the beginning and 161.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 10:43:09,545 INFO L158 Benchmark]: TraceAbstraction took 837514.85ms. Allocated memory was 209.7MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 160.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-02 10:43:09,545 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 0.12ms. Allocated memory is still 209.7MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.66ms. Allocated memory is still 209.7MB. Free memory was 172.8MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.34ms. Allocated memory is still 209.7MB. Free memory was 171.3MB in the beginning and 170.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 173.42ms. Allocated memory is still 209.7MB. Free memory was 170.2MB in the beginning and 161.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 837514.85ms. Allocated memory was 209.7MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 160.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. 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: 61]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - 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 executing DepthFirstTraversal. - 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 executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 837.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 468.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3152, 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: 0.3s SsaConstructionTime, 20.9s SatisfiabilityAnalysisTime, 345.5s InterpolantComputationTime, 9138 NumberOfCodeBlocks, 9138 NumberOfCodeBlocksAsserted, 437 NumberOfCheckSat, 13692 ConstructedInterpolants, 0 QuantifiedInterpolants, 99285 SizeOfPredicates, 30 NumberOfNonLiveVariables, 7695 ConjunctsInSsa, 1510 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 522382/1209372 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