/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 10:45:56,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 10:45:56,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 10:45:56,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 10:45:56,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 10:45:56,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 10:45:56,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 10:45:56,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 10:45:56,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 10:45:56,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 10:45:56,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 10:45:56,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 10:45:56,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 10:45:56,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 10:45:56,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 10:45:56,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 10:45:56,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 10:45:56,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 10:45:56,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 10:45:56,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 10:45:56,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 10:45:56,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 10:45:56,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 10:45:56,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 10:45:56,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 10:45:56,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 10:45:56,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 10:45:56,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 10:45:56,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 10:45:56,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 10:45:56,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 10:45:56,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 10:45:56,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 10:45:56,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 10:45:56,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 10:45:56,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 10:45:56,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 10:45:56,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 10:45:56,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 10:45:56,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 10:45:56,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 10:45:56,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 10:45:56,506 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 10:45:56,506 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 10:45:56,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 10:45:56,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 10:45:56,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 10:45:56,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 10:45:56,676 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 10:45:56,678 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 10:45:56,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2022-03-16 10:45:56,680 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2022-03-16 10:45:56,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 10:45:56,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 10:45:56,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 10:45:56,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 10:45:56,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 10:45:56,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,722 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 10:45:56,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 10:45:56,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 10:45:56,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 10:45:56,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 10:45:56,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 10:45:56,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 10:45:56,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 10:45:56,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 10:45:56,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/1) ... [2022-03-16 10:45:56,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 10:45:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:45:56,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 10:45:56,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 10:45:56,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 10:45:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 10:45:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 10:45:56,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 10:45:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 10:45:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 10:45:56,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 10:45:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 10:45:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 10:45:56,809 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 10:45:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 10:45:56,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 10:45:56,809 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-16 10:45:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 10:45:56,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 10:45:56,809 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 10:45:56,840 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 10:45:56,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 10:45:56,926 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 10:45:56,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 10:45:56,931 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 10:45:56,932 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:45:56 BoogieIcfgContainer [2022-03-16 10:45:56,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 10:45:56,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 10:45:56,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 10:45:56,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 10:45:56,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:45:56" (1/2) ... [2022-03-16 10:45:56,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d3daf1 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:45:56, skipping insertion in model container [2022-03-16 10:45:56,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:45:56" (2/2) ... [2022-03-16 10:45:56,951 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x4.wvr.bpl [2022-03-16 10:45:56,954 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 10:45:56,954 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 10:45:56,954 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 10:45:56,954 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 10:45:56,990 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-16 10:45:57,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 10:45:57,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:45:57,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 10:45:57,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 10:45:57,045 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 10:45:57,050 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-16 10:45:57,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-16 10:45:57,362 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30370 transitions and produced 7887 states. [2022-03-16 10:45:57,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 10:45:57,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:45:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1299754553, now seen corresponding path program 1 times [2022-03-16 10:45:57,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:45:57,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672668016] [2022-03-16 10:45:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:45:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:45:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:45:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:45:58,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:45:58,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672668016] [2022-03-16 10:45:58,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672668016] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:45:58,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791794069] [2022-03-16 10:45:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:45:58,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:45:58,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:45:58,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 10:45:58,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 10:45:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:45:58,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-16 10:45:58,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-16 11:00:41,398 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 11:00:41,399 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 [2022-03-16 11:00:41,407 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 11:00:41,784 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-03-16 11:00:41,786 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-16 11:00:41,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 11:00:41,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 11:00:41,988 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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-1 context. [2022-03-16 11:00:41,990 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-16 11:00:41,990 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-16 11:00:41,991 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-16 11:00:41,991 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-16 11:00:42,003 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-16 11:00:42,005 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 11:00:42,005 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 11:00:42,006 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:00:42 BasicIcfg [2022-03-16 11:00:42,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 11:00:42,007 INFO L158 Benchmark]: Toolchain (without parser) took 885304.77ms. Allocated memory was 194.0MB in the beginning and 656.4MB in the end (delta: 462.4MB). Free memory was 158.6MB in the beginning and 557.4MB in the end (delta: -398.8MB). Peak memory consumption was 443.8MB. Max. memory is 8.0GB. [2022-03-16 11:00:42,007 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 194.0MB. Free memory was 159.8MB in the beginning and 159.7MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:00:42,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.66ms. Allocated memory is still 194.0MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 11:00:42,008 INFO L158 Benchmark]: Boogie Preprocessor took 16.94ms. Allocated memory is still 194.0MB. Free memory was 157.0MB in the beginning and 156.1MB in the end (delta: 924.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:00:42,008 INFO L158 Benchmark]: RCFGBuilder took 189.67ms. Allocated memory is still 194.0MB. Free memory was 156.0MB in the beginning and 146.7MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 11:00:42,008 INFO L158 Benchmark]: TraceAbstraction took 885073.27ms. Allocated memory was 194.0MB in the beginning and 656.4MB in the end (delta: 462.4MB). Free memory was 146.2MB in the beginning and 557.4MB in the end (delta: -411.2MB). Peak memory consumption was 430.1MB. Max. memory is 8.0GB. [2022-03-16 11:00:42,009 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 194.0MB. Free memory was 159.8MB in the beginning and 159.7MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.66ms. Allocated memory is still 194.0MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.94ms. Allocated memory is still 194.0MB. Free memory was 157.0MB in the beginning and 156.1MB in the end (delta: 924.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 189.67ms. Allocated memory is still 194.0MB. Free memory was 156.0MB in the beginning and 146.7MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 885073.27ms. Allocated memory was 194.0MB in the beginning and 656.4MB in the end (delta: 462.4MB). Free memory was 146.2MB in the beginning and 557.4MB in the end (delta: -411.2MB). Peak memory consumption was 430.1MB. 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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-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 ∧-1091-2-1 term,while PolyPacSimplificationTermWalker was simplifying 1091 xjuncts wrt. a ATOM-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: 885.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, 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