/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-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 16:51:14,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 16:51:14,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 16:51:14,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 16:51:14,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 16:51:14,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 16:51:14,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 16:51:14,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 16:51:14,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 16:51:14,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 16:51:14,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 16:51:14,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 16:51:14,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 16:51:14,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 16:51:14,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 16:51:14,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 16:51:14,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 16:51:14,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 16:51:14,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 16:51:14,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 16:51:14,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 16:51:14,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 16:51:14,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 16:51:14,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 16:51:14,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 16:51:14,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 16:51:14,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 16:51:14,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 16:51:14,493 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 [2022-02-19 16:51:14,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 16:51:14,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 16:51:14,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 16:51:14,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 16:51:14,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 16:51:14,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 16:51:14,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 16:51:14,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 16:51:14,519 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 16:51:14,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 16:51:14,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 16:51:14,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 16:51:14,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:51:14,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 16:51:14,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 16:51:14,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 16:51:14,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 16:51:14,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 16:51:14,523 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 16:51:14,523 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 16:51:14,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 16:51:14,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 16:51:14,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 16:51:14,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 16:51:14,753 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 16:51:14,767 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 16:51:14,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-02-19 16:51:14,769 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2022-02-19 16:51:14,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 16:51:14,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 16:51:14,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 16:51:14,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 16:51:14,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 16:51:14,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,813 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 16:51:14,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 16:51:14,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 16:51:14,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 16:51:14,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 16:51:14,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 16:51:14,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 16:51:14,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 16:51:14,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 16:51:14,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/1) ... [2022-02-19 16:51:14,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:51:14,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:51:14,905 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) [2022-02-19 16:51:14,923 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 [2022-02-19 16:51:14,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 16:51:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 16:51:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 16:51:14,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 16:51:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 16:51:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 16:51:14,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 16:51:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 16:51:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 16:51:14,935 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 16:51:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 16:51:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 16:51:14,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 16:51:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 16:51:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 16:51:14,937 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 16:51:14,970 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 16:51:14,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 16:51:15,080 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 16:51:15,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 16:51:15,098 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 16:51:15,099 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:51:15 BoogieIcfgContainer [2022-02-19 16:51:15,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 16:51:15,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 16:51:15,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 16:51:15,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 16:51:15,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:51:14" (1/2) ... [2022-02-19 16:51:15,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661a8114 and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:51:15, skipping insertion in model container [2022-02-19 16:51:15,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:51:15" (2/2) ... [2022-02-19 16:51:15,106 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-02-19 16:51:15,112 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 16:51:15,112 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 16:51:15,113 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 16:51:15,113 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 16:51:15,163 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 16:51:15,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 16:51:15,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:51:15,242 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) [2022-02-19 16:51:15,243 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 [2022-02-19 16:51:15,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 16:51:15,275 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 [2022-02-19 16:51:15,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 16:51:15,442 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1845 transitions and produced 1634 states. [2022-02-19 16:51:15,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:51:15,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:51:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash 604266893, now seen corresponding path program 1 times [2022-02-19 16:51:15,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:51:15,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892981274] [2022-02-19 16:51:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:51:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:51:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:51:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 4800 proven. 3080 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-02-19 16:51:16,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:51:16,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892981274] [2022-02-19 16:51:16,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892981274] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:51:16,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842410746] [2022-02-19 16:51:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:51:16,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:51:16,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:51:16,436 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) [2022-02-19 16:51:16,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 16:51:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:51:16,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 87 conjunts are in the unsatisfiable core [2022-02-19 16:51:16,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:51:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 8454 proven. 42 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-02-19 16:51:20,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:51:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 2587 proven. 5929 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-02-19 16:51:24,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842410746] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:51:24,293 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:51:24,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 67, 87] total 171 [2022-02-19 16:51:24,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911601660] [2022-02-19 16:51:24,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:51:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-02-19 16:51:24,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:51:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-02-19 16:51:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8321, Invalid=21091, Unknown=0, NotChecked=0, Total=29412 [2022-02-19 16:51:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:51:24,333 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:51:24,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 3.4011627906976742) internal successors, (585), 171 states have internal predecessors, (585), 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) [2022-02-19 16:51:24,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:51:37,657 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3158 transitions and produced 2445 states. [2022-02-19 16:51:37,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-19 16:51:37,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 16:51:37,872 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 [2022-02-19 16:51:37,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:51:37,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:51:37,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1712204743, now seen corresponding path program 2 times [2022-02-19 16:51:37,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:51:37,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396760364] [2022-02-19 16:51:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:51:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:51:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:51:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 3844 proven. 5726 refuted. 0 times theorem prover too weak. 9362 trivial. 0 not checked. [2022-02-19 16:51:40,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:51:40,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396760364] [2022-02-19 16:51:40,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396760364] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:51:40,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128691808] [2022-02-19 16:51:40,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:51:40,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:51:40,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:51:40,632 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) [2022-02-19 16:51:40,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 16:51:40,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:51:40,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:51:40,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 132 conjunts are in the unsatisfiable core [2022-02-19 16:51:40,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:51:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 13504 proven. 4096 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-02-19 16:51:49,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:51:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 13504 proven. 4096 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-02-19 16:51:55,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128691808] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:51:55,474 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:51:55,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 132, 132] total 277 [2022-02-19 16:51:55,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717596567] [2022-02-19 16:51:55,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:51:55,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 278 states [2022-02-19 16:51:55,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:51:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 278 interpolants. [2022-02-19 16:51:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15223, Invalid=61783, Unknown=0, NotChecked=0, Total=77006 [2022-02-19 16:51:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:51:55,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:51:55,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 278 states, 278 states have (on average 2.643884892086331) internal successors, (735), 277 states have internal predecessors, (735), 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) [2022-02-19 16:51:55,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-19 16:51:55,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:52:14,584 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4418 transitions and produced 3551 states. [2022-02-19 16:52:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:52:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:52:14,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 16:52:14,799 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 [2022-02-19 16:52:14,800 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:52:14,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:52:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1321174771, now seen corresponding path program 3 times [2022-02-19 16:52:14,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:52:14,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638099237] [2022-02-19 16:52:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:52:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:52:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:52:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 21524 proven. 9328 refuted. 0 times theorem prover too weak. 10285 trivial. 0 not checked. [2022-02-19 16:52:18,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:52:18,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638099237] [2022-02-19 16:52:18,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638099237] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:52:18,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219838436] [2022-02-19 16:52:18,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 16:52:18,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:52:18,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:52:18,444 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) [2022-02-19 16:52:18,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 16:52:19,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-02-19 16:52:19,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:52:19,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2176 conjuncts, 146 conjunts are in the unsatisfiable core [2022-02-19 16:52:19,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:52:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 16581 proven. 19503 refuted. 0 times theorem prover too weak. 5053 trivial. 0 not checked. [2022-02-19 16:52:27,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:52:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 13018 proven. 23098 refuted. 0 times theorem prover too weak. 5021 trivial. 0 not checked. [2022-02-19 16:52:35,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219838436] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:52:35,150 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:52:35,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 138, 144] total 314 [2022-02-19 16:52:35,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335024544] [2022-02-19 16:52:35,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:52:35,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 315 states [2022-02-19 16:52:35,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:52:35,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 315 interpolants. [2022-02-19 16:52:35,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16427, Invalid=82483, Unknown=0, NotChecked=0, Total=98910 [2022-02-19 16:52:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:52:35,171 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:52:35,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 315 states, 315 states have (on average 4.1873015873015875) internal successors, (1319), 314 states have internal predecessors, (1319), 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) [2022-02-19 16:52:35,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:52:35,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:52:35,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:53:21,227 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4701 transitions and produced 3708 states. [2022-02-19 16:53:21,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:53:21,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:53:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:53:21,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 16:53:21,443 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 [2022-02-19 16:53:21,443 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:53:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:53:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2026893419, now seen corresponding path program 4 times [2022-02-19 16:53:21,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:53:21,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596120278] [2022-02-19 16:53:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:53:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:53:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:53:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 22462 proven. 12347 refuted. 0 times theorem prover too weak. 11811 trivial. 0 not checked. [2022-02-19 16:53:25,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:53:25,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596120278] [2022-02-19 16:53:25,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596120278] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:53:25,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024830555] [2022-02-19 16:53:25,396 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 16:53:25,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:53:25,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:53:25,400 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) [2022-02-19 16:53:25,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 16:53:25,722 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 16:53:25,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:53:25,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 179 conjunts are in the unsatisfiable core [2022-02-19 16:53:25,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:53:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 22833 proven. 12153 refuted. 0 times theorem prover too weak. 11634 trivial. 0 not checked. [2022-02-19 16:53:37,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:53:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 20054 proven. 14938 refuted. 0 times theorem prover too weak. 11628 trivial. 0 not checked. [2022-02-19 16:53:50,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024830555] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:53:50,285 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:53:50,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 173, 179] total 405 [2022-02-19 16:53:50,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313988300] [2022-02-19 16:53:50,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:53:50,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 406 states [2022-02-19 16:53:50,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:53:50,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 406 interpolants. [2022-02-19 16:53:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29372, Invalid=135058, Unknown=0, NotChecked=0, Total=164430 [2022-02-19 16:53:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:53:50,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:53:50,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 406 states, 406 states have (on average 3.167487684729064) internal successors, (1286), 405 states have internal predecessors, (1286), 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) [2022-02-19 16:53:50,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:53:50,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:53:50,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:53:50,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:54:41,005 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5560 transitions and produced 4263 states. [2022-02-19 16:54:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:54:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:54:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:54:41,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-02-19 16:54:41,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 16:54:41,220 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 [2022-02-19 16:54:41,221 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:54:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:54:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash 212146637, now seen corresponding path program 5 times [2022-02-19 16:54:41,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:54:41,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643785455] [2022-02-19 16:54:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:54:41,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:54:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:54:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 9409 proven. 36184 refuted. 0 times theorem prover too weak. 20922 trivial. 0 not checked. [2022-02-19 16:54:51,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:54:51,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643785455] [2022-02-19 16:54:51,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643785455] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:54:51,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043268458] [2022-02-19 16:54:51,612 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 16:54:51,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:54:51,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:54:51,614 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) [2022-02-19 16:54:51,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 16:54:52,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 122 check-sat command(s) [2022-02-19 16:54:52,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:54:52,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 484 conjunts are in the unsatisfiable core [2022-02-19 16:54:52,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:55:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 37382 proven. 9801 refuted. 0 times theorem prover too weak. 19332 trivial. 0 not checked. [2022-02-19 16:55:07,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:55:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 37382 proven. 9801 refuted. 0 times theorem prover too weak. 19332 trivial. 0 not checked. [2022-02-19 16:55:16,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043268458] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:55:16,480 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:55:16,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [183, 170, 170] total 420 [2022-02-19 16:55:16,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808834861] [2022-02-19 16:55:16,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:55:16,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 420 states [2022-02-19 16:55:16,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:55:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 420 interpolants. [2022-02-19 16:55:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36642, Invalid=139338, Unknown=0, NotChecked=0, Total=175980 [2022-02-19 16:55:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:55:16,495 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:55:16,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 420 states, 420 states have (on average 3.414285714285714) internal successors, (1434), 420 states have internal predecessors, (1434), 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) [2022-02-19 16:55:16,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:55:16,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:55:16,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:55:16,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 373 states. [2022-02-19 16:55:16,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:55:59,140 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7328 transitions and produced 5660 states. [2022-02-19 16:55:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:55:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:55:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:55:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-02-19 16:55:59,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-19 16:55:59,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-19 16:55:59,373 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 [2022-02-19 16:55:59,373 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:55:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:55:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1682175205, now seen corresponding path program 6 times [2022-02-19 16:55:59,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:55:59,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459121239] [2022-02-19 16:55:59,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:55:59,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:56:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:56:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 48672 proven. 38503 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2022-02-19 16:56:12,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:56:12,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459121239] [2022-02-19 16:56:12,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459121239] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:56:12,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986108182] [2022-02-19 16:56:12,134 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 16:56:12,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:56:12,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:56:12,136 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) [2022-02-19 16:56:12,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 16:56:13,623 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 190 check-sat command(s) [2022-02-19 16:56:13,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:56:13,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 3500 conjuncts, 303 conjunts are in the unsatisfiable core [2022-02-19 16:56:13,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:56:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 60484 proven. 28724 refuted. 0 times theorem prover too weak. 18364 trivial. 0 not checked. [2022-02-19 16:56:50,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:57:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 55095 proven. 34119 refuted. 0 times theorem prover too weak. 18358 trivial. 0 not checked. [2022-02-19 16:57:37,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986108182] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:57:37,323 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:57:37,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [187, 297, 303] total 753 [2022-02-19 16:57:37,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522156976] [2022-02-19 16:57:37,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:57:37,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 754 states [2022-02-19 16:57:37,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:57:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 754 interpolants. [2022-02-19 16:57:37,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112067, Invalid=455695, Unknown=0, NotChecked=0, Total=567762 [2022-02-19 16:57:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:57:37,359 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:57:37,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 754 states, 754 states have (on average 3.114058355437666) internal successors, (2348), 753 states have internal predecessors, (2348), 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) [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 373 states. [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-02-19 16:57:37,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 17:04:51,287 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9266 transitions and produced 6806 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-19 17:04:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 671 states. [2022-02-19 17:04:51,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 17:04:51,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 17:04:51,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 17:04:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 17:04:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash 857813179, now seen corresponding path program 7 times [2022-02-19 17:04:51,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 17:04:51,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233416725] [2022-02-19 17:04:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 17:04:51,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 17:04:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 17:05:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 174838 backedges. 33856 proven. 69426 refuted. 0 times theorem prover too weak. 71556 trivial. 0 not checked. [2022-02-19 17:05:17,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 17:05:17,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233416725] [2022-02-19 17:05:17,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233416725] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 17:05:17,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26527489] [2022-02-19 17:05:17,132 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 17:05:17,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 17:05:17,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 17:05:17,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 17:05:17,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 17:05:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 17:05:17,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 376 conjunts are in the unsatisfiable core [2022-02-19 17:05:17,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-19 17:05:37,303 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 17:05:37,311 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 17:05:37,311 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 [2022-02-19 17:05:37,311 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 [2022-02-19 17:05:37,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 17:05:37,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 17:05:37,520 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2022-02-19 17:05:37,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 17:05:37,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 17:05:37,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 17:05:37,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 17:05:37,537 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-02-19 17:05:37,539 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 17:05:37,539 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 17:05:37,541 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:05:37 BasicIcfg [2022-02-19 17:05:37,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 17:05:37,541 INFO L158 Benchmark]: Toolchain (without parser) took 862745.50ms. Allocated memory was 243.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 208.3MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-02-19 17:05:37,542 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 243.3MB. Free memory was 209.5MB in the beginning and 209.4MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 17:05:37,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.33ms. Allocated memory is still 243.3MB. Free memory was 208.2MB in the beginning and 206.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 17:05:37,542 INFO L158 Benchmark]: Boogie Preprocessor took 16.95ms. Allocated memory is still 243.3MB. Free memory was 206.7MB in the beginning and 205.7MB in the end (delta: 971.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 17:05:37,543 INFO L158 Benchmark]: RCFGBuilder took 266.18ms. Allocated memory is still 243.3MB. Free memory was 205.6MB in the beginning and 195.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-19 17:05:37,543 INFO L158 Benchmark]: TraceAbstraction took 862440.52ms. Allocated memory was 243.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 195.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-02-19 17:05:37,559 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 243.3MB. Free memory was 209.5MB in the beginning and 209.4MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.33ms. Allocated memory is still 243.3MB. Free memory was 208.2MB in the beginning and 206.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.95ms. Allocated memory is still 243.3MB. Free memory was 206.7MB in the beginning and 205.7MB in the end (delta: 971.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 266.18ms. Allocated memory is still 243.3MB. Free memory was 205.6MB in the beginning and 195.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 862440.52ms. Allocated memory was 243.3MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 195.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). 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: 80]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - 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 PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 52 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 862.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 605.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2442, 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: 0.4s SsaConstructionTime, 9.9s SatisfiabilityAnalysisTime, 198.1s InterpolantComputationTime, 9376 NumberOfCodeBlocks, 9370 NumberOfCodeBlocksAsserted, 406 NumberOfCheckSat, 14046 ConstructedInterpolants, 0 QuantifiedInterpolants, 81424 SizeOfPredicates, 23 NumberOfNonLiveVariables, 13000 ConjunctsInSsa, 1331 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 596915/868383 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