/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 10:12:11,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 10:12:11,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 10:12:11,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 10:12:11,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 10:12:11,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 10:12:11,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 10:12:11,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 10:12:11,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 10:12:11,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 10:12:11,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 10:12:11,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 10:12:11,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 10:12:11,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 10:12:11,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 10:12:11,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 10:12:11,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 10:12:11,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 10:12:11,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 10:12:11,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 10:12:11,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 10:12:11,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 10:12:11,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 10:12:11,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 10:12:11,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 10:12:11,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 10:12:11,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 10:12:11,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 10:12:11,714 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.epf [2022-02-16 10:12:11,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 10:12:11,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 10:12:11,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 10:12:11,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 10:12:11,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 10:12:11,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 10:12:11,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 10:12:11,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 10:12:11,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 10:12:11,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 10:12:11,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 10:12:11,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 10:12:11,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 10:12:11,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 10:12:11,755 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 10:12:11,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 10:12:11,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 10:12:11,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 10:12:11,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 10:12:11,981 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 10:12:11,982 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 10:12:11,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2022-02-16 10:12:11,983 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2022-02-16 10:12:11,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 10:12:11,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 10:12:12,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 10:12:12,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 10:12:12,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 10:12:12,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,016 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 10:12:12,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 10:12:12,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 10:12:12,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 10:12:12,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 10:12:12,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 10:12:12,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 10:12:12,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 10:12:12,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 10:12:12,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/1) ... [2022-02-16 10:12:12,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 10:12:12,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:12:12,077 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) [2022-02-16 10:12:12,086 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 [2022-02-16 10:12:12,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 10:12:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 10:12:12,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 10:12:12,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 10:12:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 10:12:12,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 10:12:12,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 10:12:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 10:12:12,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 10:12:12,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 10:12:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 10:12:12,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 10:12:12,112 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-16 10:12:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-16 10:12:12,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-16 10:12:12,114 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 10:12:12,148 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 10:12:12,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 10:12:12,255 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 10:12:12,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 10:12:12,266 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 10:12:12,267 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:12:12 BoogieIcfgContainer [2022-02-16 10:12:12,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 10:12:12,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 10:12:12,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 10:12:12,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 10:12:12,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:12:11" (1/2) ... [2022-02-16 10:12:12,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdcfba0 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 10:12:12, skipping insertion in model container [2022-02-16 10:12:12,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:12:12" (2/2) ... [2022-02-16 10:12:12,275 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x4.wvr.bpl [2022-02-16 10:12:12,278 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 10:12:12,278 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 10:12:12,278 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 10:12:12,278 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 10:12:12,318 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-16 10:12:12,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 10:12:12,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:12:12,410 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) [2022-02-16 10:12:12,421 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 [2022-02-16 10:12:12,440 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 10:12:12,449 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 [2022-02-16 10:12:12,449 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-16 10:12:12,536 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 248 transitions and produced 241 states. [2022-02-16 10:12:12,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 10:12:12,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:12:12,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1299754553, now seen corresponding path program 1 times [2022-02-16 10:12:12,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:12:12,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790415175] [2022-02-16 10:12:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:12:12,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:12:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:12:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 10:12:13,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:12:13,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790415175] [2022-02-16 10:12:13,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790415175] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:12:13,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589189386] [2022-02-16 10:12:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:12:13,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:12:13,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:12:13,278 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) [2022-02-16 10:12:13,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 10:12:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:12:13,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 53 conjunts are in the unsatisfiable core [2022-02-16 10:12:13,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-16 10:26:57,715 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 10:26:57,715 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 [2022-02-16 10:26:57,715 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 [2022-02-16 10:26:58,223 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-02-16 10:26:58,226 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-16 10:26:58,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 10:26:58,427 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 [2022-02-16 10:26:58,427 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. [2022-02-16 10:26:58,429 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-16 10:26:58,429 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-16 10:26:58,430 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-16 10:26:58,430 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-16 10:26:58,436 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-16 10:26:58,438 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 10:26:58,438 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 10:26:58,440 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 10:26:58 BasicIcfg [2022-02-16 10:26:58,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 10:26:58,440 INFO L158 Benchmark]: Toolchain (without parser) took 886440.93ms. Allocated memory was 175.1MB in the beginning and 701.5MB in the end (delta: 526.4MB). Free memory was 144.4MB in the beginning and 258.7MB in the end (delta: -114.2MB). Peak memory consumption was 456.2MB. Max. memory is 8.0GB. [2022-02-16 10:26:58,441 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 10:26:58,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.80ms. Allocated memory is still 175.1MB. Free memory was 144.3MB in the beginning and 142.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 10:26:58,441 INFO L158 Benchmark]: Boogie Preprocessor took 17.74ms. Allocated memory is still 175.1MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 10:26:58,442 INFO L158 Benchmark]: RCFGBuilder took 231.63ms. Allocated memory is still 175.1MB. Free memory was 141.8MB in the beginning and 132.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 10:26:58,442 INFO L158 Benchmark]: TraceAbstraction took 886171.33ms. Allocated memory was 175.1MB in the beginning and 701.5MB in the end (delta: 526.4MB). Free memory was 131.9MB in the beginning and 258.7MB in the end (delta: -126.8MB). Peak memory consumption was 443.7MB. Max. memory is 8.0GB. [2022-02-16 10:26:58,449 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 0.10ms. Allocated memory is still 175.1MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.80ms. Allocated memory is still 175.1MB. Free memory was 144.3MB in the beginning and 142.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.74ms. Allocated memory is still 175.1MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 231.63ms. Allocated memory is still 175.1MB. Free memory was 141.8MB in the beginning and 132.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 886171.33ms. Allocated memory was 175.1MB in the beginning and 701.5MB in the end (delta: 526.4MB). Free memory was 131.9MB in the beginning and 258.7MB in the end (delta: -126.8MB). Peak memory consumption was 443.7MB. 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: 64]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. - TimeoutResultAtElement [Line: 56]: 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 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. - TimeoutResultAtElement [Line: 57]: 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 56 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1083-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-1082-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 58 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 886.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown