/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 16:12:29,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 16:12:29,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 16:12:29,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 16:12:29,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 16:12:29,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 16:12:29,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 16:12:29,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 16:12:29,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 16:12:29,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 16:12:29,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 16:12:29,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 16:12:29,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 16:12:29,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 16:12:29,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 16:12:29,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 16:12:29,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-22 16:12:29,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 16:12:29,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 16:12:29,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 16:12:29,635 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-22 16:12:29,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 16:12:29,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 16:12:29,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 16:12:29,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 16:12:29,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 16:12:29,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 16:12:29,661 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 16:12:29,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 16:12:29,662 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 16:12:29,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 16:12:29,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 16:12:29,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 16:12:29,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 16:12:29,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 16:12:29,664 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-22 16:12:29,665 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 16:12:29,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 16:12:29,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 16:12:29,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 16:12:29,868 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 16:12:29,869 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 16:12:29,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2021-10-22 16:12:29,870 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-10-22 16:12:29,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 16:12:29,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 16:12:29,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 16:12:29,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 16:12:29,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 16:12:29,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 16:12:29,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 16:12:29,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 16:12:29,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 16:12:29,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 16:12:29,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 16:12:29,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 16:12:29,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 16:12:29,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/1) ... [2021-10-22 16:12:29,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 16:12:29,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:12:29,967 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) [2021-10-22 16:12:29,987 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 [2021-10-22 16:12:30,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 16:12:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 16:12:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 16:12:30,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 16:12:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 16:12:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 16:12:30,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 16:12:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 16:12:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 16:12:30,014 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 16:12:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 16:12:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 16:12:30,015 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-22 16:12:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-22 16:12:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-22 16:12:30,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-10-22 16:12:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-22 16:12:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-22 16:12:30,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-10-22 16:12:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-10-22 16:12:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-10-22 16:12:30,017 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 16:12:30,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 16:12:30,225 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-22 16:12:30,227 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:12:30 BoogieIcfgContainer [2021-10-22 16:12:30,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 16:12:30,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 16:12:30,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 16:12:30,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 16:12:30,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 04:12:29" (1/2) ... [2021-10-22 16:12:30,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c9d756 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:12:30, skipping insertion in model container [2021-10-22 16:12:30,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:12:30" (2/2) ... [2021-10-22 16:12:30,251 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-10-22 16:12:30,255 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 16:12:30,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 16:12:30,255 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 16:12:30,255 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 16:12:30,346 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-10-22 16:12:30,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 16:12:30,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:12:30,387 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) [2021-10-22 16:12:30,410 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 [2021-10-22 16:12:30,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2021-10-22 16:12:30,436 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-22 16:12:30,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-22 16:12:30,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err4INUSE_VIOLATION [2021-10-22 16:12:30,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err6INUSE_VIOLATION [2021-10-22 16:12:30,984 INFO L308 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (1/3) [2021-10-22 16:12:30,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 16:12:30,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 16:12:30,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 16:12:30,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-22 16:12:30,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 16:12:30,995 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-22 16:12:30,995 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 16:12:31,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-22 16:12:31,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:12:31,046 INFO L82 PathProgramCache]: Analyzing trace with hash 982692246, now seen corresponding path program 1 times [2021-10-22 16:12:31,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:12:31,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554099276] [2021-10-22 16:12:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:12:31,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:12:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:12:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:12:31,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:12:31,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554099276] [2021-10-22 16:12:31,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554099276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:12:31,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:12:31,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 16:12:31,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445910249] [2021-10-22 16:12:31,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:12:31,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:12:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:12:31,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:12:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,247 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:12:31,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-10-22 16:12:31,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 16:12:31,268 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-22 16:12:31,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:12:31,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2115824635, now seen corresponding path program 1 times [2021-10-22 16:12:31,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:12:31,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702355348] [2021-10-22 16:12:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:12:31,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:12:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:12:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:12:31,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:12:31,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702355348] [2021-10-22 16:12:31,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702355348] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:12:31,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:12:31,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 16:12:31,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142696168] [2021-10-22 16:12:31,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:12:31,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:12:31,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:12:31,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:12:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,319 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:12:31,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-22 16:12:31,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 16:12:31,349 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-22 16:12:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:12:31,350 INFO L82 PathProgramCache]: Analyzing trace with hash -980707369, now seen corresponding path program 1 times [2021-10-22 16:12:31,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:12:31,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848912086] [2021-10-22 16:12:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:12:31,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:12:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:12:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:12:31,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:12:31,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848912086] [2021-10-22 16:12:31,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848912086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:12:31,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:12:31,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 16:12:31,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48027673] [2021-10-22 16:12:31,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:12:31,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:12:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:12:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:12:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,394 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:12:31,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-22 16:12:31,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-22 16:12:31,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-22 16:12:31,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:12:31,431 INFO L82 PathProgramCache]: Analyzing trace with hash -67593548, now seen corresponding path program 1 times [2021-10-22 16:12:31,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:12:31,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262636975] [2021-10-22 16:12:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:12:31,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:12:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 16:12:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 16:12:31,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 16:12:31,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262636975] [2021-10-22 16:12:31,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262636975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 16:12:31,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 16:12:31,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 16:12:31,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866983908] [2021-10-22 16:12:31,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 16:12:31,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 16:12:31,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 16:12:31,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 16:12:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,477 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 16:12:31,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-10-22 16:12:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 16:12:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 16:12:31,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-22 16:12:31,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION] === [2021-10-22 16:12:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 16:12:31,489 INFO L82 PathProgramCache]: Analyzing trace with hash -179761154, now seen corresponding path program 2 times [2021-10-22 16:12:31,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 16:12:31,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748149876] [2021-10-22 16:12:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 16:12:31,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 16:12:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-22 16:12:31,511 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-22 16:12:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-22 16:12:31,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-22 16:12:31,539 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-22 16:12:31,539 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 16:12:31,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8INUSE_VIOLATION [2021-10-22 16:12:31,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9INUSE_VIOLATION [2021-10-22 16:12:31,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-22 16:12:31,549 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/3) [2021-10-22 16:12:31,551 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 16:12:31,552 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 16:12:31,584 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:12:31 BasicIcfg [2021-10-22 16:12:31,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 16:12:31,585 INFO L168 Benchmark]: Toolchain (without parser) took 1684.74 ms. Allocated memory was 176.2 MB in the beginning and 260.0 MB in the end (delta: 83.9 MB). Free memory was 134.0 MB in the beginning and 192.6 MB in the end (delta: -58.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. [2021-10-22 16:12:31,585 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 176.2 MB. Free memory is still 135.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 16:12:31,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 176.2 MB. Free memory was 133.9 MB in the beginning and 132.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 16:12:31,586 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 176.2 MB. Free memory was 132.3 MB in the beginning and 131.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 16:12:31,586 INFO L168 Benchmark]: RCFGBuilder took 284.12 ms. Allocated memory is still 176.2 MB. Free memory was 131.3 MB in the beginning and 115.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-22 16:12:31,586 INFO L168 Benchmark]: TraceAbstraction took 1355.91 ms. Allocated memory was 176.2 MB in the beginning and 260.0 MB in the end (delta: 83.9 MB). Free memory was 115.4 MB in the beginning and 192.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2021-10-22 16:12:31,587 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 0.10 ms. Allocated memory is still 176.2 MB. Free memory is still 135.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 176.2 MB. Free memory was 133.9 MB in the beginning and 132.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 176.2 MB. Free memory was 132.3 MB in the beginning and 131.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 284.12 ms. Allocated memory is still 176.2 MB. Free memory was 131.3 MB in the beginning and 115.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1355.91 ms. Allocated memory was 176.2 MB in the beginning and 260.0 MB in the end (delta: 83.9 MB). Free memory was 115.4 MB in the beginning and 192.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19311, positive: 18292, positive conditional: 14907, positive unconditional: 3385, negative: 1019, negative conditional: 980, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18681, positive: 18292, positive conditional: 0, positive unconditional: 18292, negative: 389, negative conditional: 0, negative unconditional: 389, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2847, positive: 2808, positive conditional: 0, positive unconditional: 2808, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2847, positive: 2798, positive conditional: 0, positive unconditional: 2798, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18681, positive: 15484, positive conditional: 0, positive unconditional: 15484, negative: 350, negative conditional: 0, negative unconditional: 350, unknown: 2847, unknown conditional: 0, unknown unconditional: 2847] , Statistics on independence cache: Total cache size (in pairs): 2847, Positive cache size: 2808, Positive conditional cache size: 0, Positive unconditional cache size: 2808, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Independence queries for same thread: 630 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 275, Number of persistent set computation: 1052, Number of trivial persistent sets: 719, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19311, positive: 18292, positive conditional: 14907, positive unconditional: 3385, negative: 1019, negative conditional: 980, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18681, positive: 18292, positive conditional: 0, positive unconditional: 18292, negative: 389, negative conditional: 0, negative unconditional: 389, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2847, positive: 2808, positive conditional: 0, positive unconditional: 2808, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2847, positive: 2798, positive conditional: 0, positive unconditional: 2798, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18681, positive: 15484, positive conditional: 0, positive unconditional: 15484, negative: 350, negative conditional: 0, negative unconditional: 350, unknown: 2847, unknown conditional: 0, unknown unconditional: 2847] , Statistics on independence cache: Total cache size (in pairs): 2847, Positive cache size: 2808, Positive conditional cache size: 0, Positive unconditional cache size: 2808, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Independence queries for same thread: 630 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2795, positive: 2673, positive conditional: 230, positive unconditional: 2443, negative: 122, negative conditional: 96, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2711, positive: 2673, positive conditional: 0, positive unconditional: 2673, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2358, positive: 2332, positive conditional: 0, positive unconditional: 2332, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2358, positive: 2324, positive conditional: 0, positive unconditional: 2324, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2711, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 2358, unknown conditional: 0, unknown unconditional: 2358] , Statistics on independence cache: Total cache size (in pairs): 2358, Positive cache size: 2332, Positive conditional cache size: 0, Positive unconditional cache size: 2332, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 84 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 74, Number of persistent set computation: 61, Number of trivial persistent sets: 49, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2795, positive: 2673, positive conditional: 230, positive unconditional: 2443, negative: 122, negative conditional: 96, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2711, positive: 2673, positive conditional: 0, positive unconditional: 2673, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2358, positive: 2332, positive conditional: 0, positive unconditional: 2332, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2358, positive: 2324, positive conditional: 0, positive unconditional: 2324, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2711, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 2358, unknown conditional: 0, unknown unconditional: 2358] , Statistics on independence cache: Total cache size (in pairs): 2358, Positive cache size: 2332, Positive conditional cache size: 0, Positive unconditional cache size: 2332, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 84 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 121]: assertion can be violated assertion can be violated We found a FailurePath: [L115] 0 assume x_0 == x_8 && y_1 == y_9; VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L116] FORK 0 fork 1 thread1(); VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L117] FORK 0 fork 4, 4, 4, 4 thread4(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L63] FORK 1 fork 2, 2 thread2(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L64] FORK 1 fork 3, 3, 3 thread3(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L65] JOIN 3 join 2, 2; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L66] JOIN 4 join 3, 3, 3; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L118] JOIN 1 join 1; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L103] 2 f1_10 := false; [L104] 2 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L106] FORK 2 fork 5, 5, 5, 5, 5 thread5(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L107] FORK 2 fork 6, 6, 6, 6, 6, 6 thread6(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L73] 5 temp_12 := x_8; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L74] 5 x_8 := temp_12 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L75] 5 f1_10 := true; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L88] 6 temp_14 := y_9; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L89] 6 y_9 := temp_14 + 1; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L90] 6 f2_11 := true; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L91] 6 assume f1_10; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L92] 6 temp_15 := x_8; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=0] [L93] 6 x_8 := temp_15 + 1; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=0] [L76] 5 assume f2_11; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=0] [L94] 6 f2_11 := false; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=0] [L77] 5 temp_13 := y_9; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=0] [L78] 5 y_9 := temp_13 + 1; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L79] 5 f1_10 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L95] 6 assume !f1_10; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L80] 5 assume !f2_11; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L108] JOIN 5 join 5, 5, 5, 5, 5; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L109] JOIN 6 join 6, 6, 6, 6, 6, 6; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L119] JOIN 2 join 4, 4, 4, 4; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L120] 0 assume !(x_0 == x_8 && y_1 == y_9); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L121] 0 assert false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread4Thread1of1ForFork3 with 1 thread instances CFG has 13 procedures, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 600.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 521.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 558.9ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 140.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.4ms SsaConstructionTime, 85.2ms SatisfiabilityAnalysisTime, 168.0ms InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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 proved your program to be incorrect! [2021-10-22 16:12:31,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2021-10-22 16:12:31,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-22 16:12:32,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...