/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:14:22,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:14:22,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:14:22,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 06:14:22,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:14:22,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:14:22,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:14:22,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:14:22,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:14:22,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:14:22,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:14:22,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:14:22,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:14:22,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:14:22,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:14:22,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:14:22,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 06:14:22,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:14:22,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:14:22,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:14:22,426 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.epf [2022-03-04 06:14:22,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:14:22,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:14:22,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:14:22,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:14:22,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:14:22,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:14:22,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:14:22,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:14:22,464 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:14:22,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:14:22,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:14:22,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:14:22,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:14:22,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:14:22,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:14:22,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:14:22,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:14:22,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:14:22,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:14:22,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:14:22,468 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:14:22,469 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:14:22,470 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:14:22,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:14:22,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:14:22,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:14:22,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:14:22,765 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:14:22,767 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:14:22,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl [2022-03-04 06:14:22,768 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl' [2022-03-04 06:14:22,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:14:22,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:14:22,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:14:22,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:14:22,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:14:22,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,819 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:14:22,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:14:22,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:14:22,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:14:22,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:14:22,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:14:22,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:14:22,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:14:22,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:14:22,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/1) ... [2022-03-04 06:14:22,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:14:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:14:22,892 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) [2022-03-04 06:14:22,912 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 [2022-03-04 06:14:22,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:14:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:14:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:14:22,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:14:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:14:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:14:22,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:14:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:14:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:14:22,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:14:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:14:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:14:22,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 06:14:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 06:14:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 06:14:22,942 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:14:22,991 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:14:22,992 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:14:23,144 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:14:23,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:14:23,170 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:14:23,172 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:14:23 BoogieIcfgContainer [2022-03-04 06:14:23,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:14:23,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:14:23,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:14:23,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:14:23,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:14:22" (1/2) ... [2022-03-04 06:14:23,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e772f90 and model type buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:14:23, skipping insertion in model container [2022-03-04 06:14:23,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:14:23" (2/2) ... [2022-03-04 06:14:23,188 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult.wvr.bpl [2022-03-04 06:14:23,194 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:14:23,194 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:14:23,194 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:14:23,194 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:14:23,271 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 06:14:23,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:14:23,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:14:23,365 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) [2022-03-04 06:14:23,366 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 [2022-03-04 06:14:23,393 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:14:23,399 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=true [2022-03-04 06:14:23,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 06:14:23,763 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-03-04 06:14:23,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:14:23,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:14:23,774 INFO L85 PathProgramCache]: Analyzing trace with hash -506129211, now seen corresponding path program 1 times [2022-03-04 06:14:23,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:14:23,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790597806] [2022-03-04 06:14:23,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:14:23,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:14:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:14:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-03-04 06:14:24,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:14:24,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790597806] [2022-03-04 06:14:24,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790597806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 06:14:24,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 06:14:24,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 06:14:24,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460302345] [2022-03-04 06:14:24,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 06:14:24,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 06:14:24,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:14:24,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 06:14:24,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 06:14:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:24,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:14:24,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-03-04 06:14:24,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:24,444 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-03-04 06:14:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:14:24,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 06:14:24,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:14:24,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:14:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash -209219181, now seen corresponding path program 2 times [2022-03-04 06:14:24,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:14:24,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312490728] [2022-03-04 06:14:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:14:24,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:14:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:14:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1697 proven. 1130 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-04 06:14:26,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:14:26,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312490728] [2022-03-04 06:14:26,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312490728] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:14:26,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50507152] [2022-03-04 06:14:26,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:14:26,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:14:26,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:14:26,881 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) [2022-03-04 06:14:26,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:14:27,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:14:27,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:14:27,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-04 06:14:27,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:14:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 131 proven. 2727 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-04 06:14:30,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:14:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1199 proven. 1452 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-03-04 06:14:31,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50507152] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:14:31,859 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:14:31,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 54, 13] total 123 [2022-03-04 06:14:31,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681146917] [2022-03-04 06:14:31,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:14:31,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-04 06:14:31,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:14:31,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-04 06:14:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1430, Invalid=13822, Unknown=0, NotChecked=0, Total=15252 [2022-03-04 06:14:31,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:31,871 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:14:31,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.8548387096774195) internal successors, (478), 123 states have internal predecessors, (478), 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) [2022-03-04 06:14:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:14:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:46,223 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1985 transitions and produced 1462 states. [2022-03-04 06:14:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:14:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:14:46,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 06:14:46,439 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,SelfDestructingSolverStorable1 [2022-03-04 06:14:46,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:14:46,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:14:46,441 INFO L85 PathProgramCache]: Analyzing trace with hash 48188039, now seen corresponding path program 3 times [2022-03-04 06:14:46,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:14:46,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104512538] [2022-03-04 06:14:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:14:46,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:14:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:14:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 2994 proven. 1162 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2022-03-04 06:14:47,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:14:47,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104512538] [2022-03-04 06:14:47,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104512538] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:14:47,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950606642] [2022-03-04 06:14:47,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:14:47,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:14:47,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:14:47,802 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) [2022-03-04 06:14:47,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:14:47,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 06:14:47,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:14:47,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 06:14:47,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:14:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:14:48,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:14:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:14:48,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950606642] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:14:48,901 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:14:48,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 8, 8] total 68 [2022-03-04 06:14:48,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039804102] [2022-03-04 06:14:48,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:14:48,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-04 06:14:48,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:14:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-04 06:14:48,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=3149, Unknown=0, NotChecked=0, Total=4556 [2022-03-04 06:14:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:48,905 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:14:48,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.323529411764706) internal successors, (226), 68 states have internal predecessors, (226), 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) [2022-03-04 06:14:48,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:14:48,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:14:48,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:14:53,136 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2981 transitions and produced 2004 states. [2022-03-04 06:14:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:14:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:14:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:14:53,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 06:14:53,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:14:53,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:14:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:14:53,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1218238245, now seen corresponding path program 4 times [2022-03-04 06:14:53,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:14:53,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528462] [2022-03-04 06:14:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:14:53,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:14:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:15:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6700 proven. 7539 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-03-04 06:15:01,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:15:01,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528462] [2022-03-04 06:15:01,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528462] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:15:01,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114259352] [2022-03-04 06:15:01,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:15:01,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:15:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:15:01,295 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) [2022-03-04 06:15:01,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:15:01,486 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:15:01,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:15:01,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-04 06:15:01,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:15:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 4428 proven. 9679 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-03-04 06:15:13,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:15:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6829 proven. 6650 refuted. 0 times theorem prover too weak. 2266 trivial. 0 not checked. [2022-03-04 06:15:18,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114259352] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:15:18,348 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:15:18,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 123, 39] total 322 [2022-03-04 06:15:18,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619668623] [2022-03-04 06:15:18,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:15:18,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-04 06:15:18,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:15:18,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-04 06:15:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7223, Invalid=96783, Unknown=0, NotChecked=0, Total=104006 [2022-03-04 06:15:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:15:18,364 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:15:18,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 3.222910216718266) internal successors, (1041), 322 states have internal predecessors, (1041), 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) [2022-03-04 06:15:18,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:15:18,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:15:18,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:15:18,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:20,293 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2568 states. [2022-03-04 06:16:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:16:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:16:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:16:20,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 06:16:20,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:20,500 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash 725406080, now seen corresponding path program 5 times [2022-03-04 06:16:20,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:20,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963240989] [2022-03-04 06:16:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:20,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 7827 proven. 5366 refuted. 0 times theorem prover too weak. 5475 trivial. 0 not checked. [2022-03-04 06:16:29,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:29,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963240989] [2022-03-04 06:16:29,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963240989] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:29,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465131265] [2022-03-04 06:16:29,300 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:16:29,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:29,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:29,302 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) [2022-03-04 06:16:29,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:16:29,821 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2022-03-04 06:16:29,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:29,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 147 conjunts are in the unsatisfiable core [2022-03-04 06:16:29,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:16:45,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:16:56,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465131265] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:56,623 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:56,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 146, 85] total 381 [2022-03-04 06:16:56,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377809638] [2022-03-04 06:16:56,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:56,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-03-04 06:16:56,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-03-04 06:16:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24153, Invalid=121389, Unknown=0, NotChecked=0, Total=145542 [2022-03-04 06:16:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:56,641 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:56,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 382 states have (on average 3.3769633507853403) internal successors, (1290), 381 states have internal predecessors, (1290), 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) [2022-03-04 06:16:56,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:56,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:16:56,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:16:56,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:16:56,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:17:55,765 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5034 transitions and produced 3222 states. [2022-03-04 06:17:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:17:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:17:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:17:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:17:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:17:55,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 06:17:55,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:17:55,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:17:55,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:17:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1848080875, now seen corresponding path program 6 times [2022-03-04 06:17:55,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:17:55,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446257452] [2022-03-04 06:17:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:17:55,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:17:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:18:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 18795 proven. 19255 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2022-03-04 06:18:22,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:18:22,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446257452] [2022-03-04 06:18:22,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446257452] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:18:22,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655072385] [2022-03-04 06:18:22,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:18:22,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:18:22,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:18:22,229 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) [2022-03-04 06:18:22,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:18:22,745 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2022-03-04 06:18:22,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:18:22,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 06:18:22,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:18:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:18:24,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:18:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:18:25,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655072385] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:18:25,620 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:18:25,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [296, 10, 10] total 305 [2022-03-04 06:18:25,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882002959] [2022-03-04 06:18:25,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:18:25,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-03-04 06:18:25,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:18:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-03-04 06:18:25,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17346, Invalid=75374, Unknown=0, NotChecked=0, Total=92720 [2022-03-04 06:18:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:18:25,631 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:18:25,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 2.226229508196721) internal successors, (679), 305 states have internal predecessors, (679), 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) [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:18:25,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:19:05,717 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5405 transitions and produced 3503 states. [2022-03-04 06:19:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:19:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:19:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:19:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:19:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:19:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:19:05,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 06:19:05,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:19:05,918 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:19:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:19:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 423123931, now seen corresponding path program 7 times [2022-03-04 06:19:05,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:19:05,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831370257] [2022-03-04 06:19:05,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:19:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:19:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:19:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 24738 proven. 22346 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-03-04 06:19:43,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:19:43,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831370257] [2022-03-04 06:19:43,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831370257] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:19:43,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810748224] [2022-03-04 06:19:43,214 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:19:43,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:19:43,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:19:43,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:19:43,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:19:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:19:43,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 232 conjunts are in the unsatisfiable core [2022-03-04 06:19:43,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:20:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 25007 proven. 24103 refuted. 0 times theorem prover too weak. 3941 trivial. 0 not checked. [2022-03-04 06:20:28,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:20:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 31493 proven. 16984 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-03-04 06:20:52,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810748224] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:20:52,833 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:20:52,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [355, 231, 113] total 697 [2022-03-04 06:20:52,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601519559] [2022-03-04 06:20:52,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:20:52,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 698 states [2022-03-04 06:20:52,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:20:52,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 698 interpolants. [2022-03-04 06:20:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61304, Invalid=425202, Unknown=0, NotChecked=0, Total=486506 [2022-03-04 06:20:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:20:52,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:20:52,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 698 states, 698 states have (on average 2.833810888252149) internal successors, (1978), 697 states have internal predecessors, (1978), 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) [2022-03-04 06:20:52,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:20:52,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:20:52,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:20:52,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:20:52,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:20:52,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:20:52,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-04 06:26:01,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 06:26:01,025 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 [2022-03-04 06:26:01,026 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 [2022-03-04 06:26:01,026 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:26:01,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:26:01,179 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. [2022-03-04 06:26:01,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 06:26:01,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 06:26:01,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 06:26:01,182 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 06:26:01,182 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 06:26:01,188 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 06:26:01,190 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:26:01,190 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:26:01,192 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:26:01 BasicIcfg [2022-03-04 06:26:01,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:26:01,192 INFO L158 Benchmark]: Toolchain (without parser) took 698401.52ms. Allocated memory was 173.0MB in the beginning and 5.4GB in the end (delta: 5.2GB). Free memory was 132.8MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-04 06:26:01,193 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:26:01,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 173.0MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:26:01,193 INFO L158 Benchmark]: Boogie Preprocessor took 31.29ms. Allocated memory is still 173.0MB. Free memory was 131.2MB in the beginning and 130.3MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:26:01,194 INFO L158 Benchmark]: RCFGBuilder took 317.98ms. Allocated memory is still 173.0MB. Free memory was 130.2MB in the beginning and 120.2MB in the end (delta: 10.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-04 06:26:01,194 INFO L158 Benchmark]: TraceAbstraction took 698016.90ms. Allocated memory was 173.0MB in the beginning and 5.4GB in the end (delta: 5.2GB). Free memory was 119.6MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-04 06:26:01,195 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 0.13ms. Allocated memory is still 173.0MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 173.0MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.29ms. Allocated memory is still 173.0MB. Free memory was 131.2MB in the beginning and 130.3MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 317.98ms. Allocated memory is still 173.0MB. Free memory was 130.2MB in the beginning and 120.2MB in the end (delta: 10.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 698016.90ms. Allocated memory was 173.0MB in the beginning and 5.4GB in the end (delta: 5.2GB). Free memory was 119.6MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.2GB. 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: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1637 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 697.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 488.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3400, 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, 3.5s SatisfiabilityAnalysisTime, 203.7s InterpolantComputationTime, 7206 NumberOfCodeBlocks, 6538 NumberOfCodeBlocksAsserted, 175 NumberOfCheckSat, 10674 ConstructedInterpolants, 0 QuantifiedInterpolants, 65729 SizeOfPredicates, 16 NumberOfNonLiveVariables, 7107 ConjunctsInSsa, 590 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 289802/424583 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