/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-820ea7a [2022-02-20 03:25:40,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:25:40,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:25:40,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:25:40,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:25:40,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:25:40,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:25:40,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:25:40,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:25:40,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:25:40,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:25:40,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:25:40,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:25:40,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:25:40,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:25:40,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:25:40,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:25:40,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:25:40,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:25:40,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:25:40,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:25:40,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:25:40,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:25:40,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:25:40,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:25:40,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:25:40,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:25:40,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:25:40,978 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 [2022-02-20 03:25:41,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:25:41,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:25:41,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:25:41,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:25:41,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:25:41,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:25:41,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:25:41,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:25:41,001 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:25:41,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:25:41,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:25:41,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:25:41,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:25:41,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:25:41,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:25:41,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:25:41,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:25:41,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:25:41,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:25:41,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:25:41,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:25:41,005 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:25:41,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:25:41,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:25:41,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:25:41,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:25:41,186 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:25:41,186 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:25:41,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2022-02-20 03:25:41,187 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2022-02-20 03:25:41,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:25:41,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:25:41,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:25:41,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:25:41,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:25:41,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,238 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:25:41,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:25:41,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:25:41,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:25:41,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:25:41,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:25:41,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:25:41,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:25:41,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:25:41,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/1) ... [2022-02-20 03:25:41,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:25:41,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:25:41,278 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) [2022-02-20 03:25:41,295 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 [2022-02-20 03:25:41,308 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:25:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:25:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:25:41,309 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:25:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:25:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:25:41,309 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:25:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:25:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:25:41,310 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 03:25:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 03:25:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 03:25:41,311 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 03:25:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 03:25:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 03:25:41,312 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:25:41,352 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:25:41,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:25:41,416 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:25:41,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:25:41,421 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:25:41,422 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:25:41 BoogieIcfgContainer [2022-02-20 03:25:41,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:25:41,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:25:41,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:25:41,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:25:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:25:41" (1/2) ... [2022-02-20 03:25:41,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3036e9 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:25:41, skipping insertion in model container [2022-02-20 03:25:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:25:41" (2/2) ... [2022-02-20 03:25:41,462 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x4.wvr.bpl [2022-02-20 03:25:41,466 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:25:41,466 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:25:41,466 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:25:41,466 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:25:41,512 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 03:25:41,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:25:41,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:25:41,543 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) [2022-02-20 03:25:41,544 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 [2022-02-20 03:25:41,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:25:41,568 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=true, mMcrOverapproximateWrwc=true [2022-02-20 03:25:41,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 03:25:41,941 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30370 transitions and produced 7887 states. [2022-02-20 03:25:41,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 03:25:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:25:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1299754553, now seen corresponding path program 1 times [2022-02-20 03:25:41,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:25:41,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122430455] [2022-02-20 03:25:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:25:41,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:25:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:25:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:25:42,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:25:42,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122430455] [2022-02-20 03:25:42,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122430455] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:25:42,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231412550] [2022-02-20 03:25:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:25:42,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:25:42,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:25:42,780 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) [2022-02-20 03:25:42,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:25:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:25:42,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 53 conjunts are in the unsatisfiable core [2022-02-20 03:25:42,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-20 03:40:26,004 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 [2022-02-20 03:40:26,004 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 [2022-02-20 03:40:26,004 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 [2022-02-20 03:40:26,111 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-02-20 03:40:26,113 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-20 03:40:26,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 03:40:26,313 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 [2022-02-20 03:40:26,314 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. [2022-02-20 03:40:26,315 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-20 03:40:26,316 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-20 03:40:26,316 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-20 03:40:26,316 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-20 03:40:26,323 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 03:40:26,325 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:40:26,325 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:40:26,326 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:40:26 BasicIcfg [2022-02-20 03:40:26,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:40:26,327 INFO L158 Benchmark]: Toolchain (without parser) took 885118.39ms. Allocated memory was 181.4MB in the beginning and 576.7MB in the end (delta: 395.3MB). Free memory was 141.2MB in the beginning and 409.9MB in the end (delta: -268.7MB). Peak memory consumption was 395.8MB. Max. memory is 8.0GB. [2022-02-20 03:40:26,327 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 142.3MB in the beginning and 142.2MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:40:26,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.15ms. Allocated memory is still 181.4MB. Free memory was 141.1MB in the beginning and 139.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 03:40:26,328 INFO L158 Benchmark]: Boogie Preprocessor took 10.58ms. Allocated memory is still 181.4MB. Free memory was 139.5MB in the beginning and 138.6MB in the end (delta: 909.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:40:26,328 INFO L158 Benchmark]: RCFGBuilder took 170.46ms. Allocated memory is still 181.4MB. Free memory was 138.5MB in the beginning and 129.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-20 03:40:26,329 INFO L158 Benchmark]: TraceAbstraction took 884903.13ms. Allocated memory was 181.4MB in the beginning and 576.7MB in the end (delta: 395.3MB). Free memory was 128.9MB in the beginning and 409.9MB in the end (delta: -280.9MB). Peak memory consumption was 383.2MB. Max. memory is 8.0GB. [2022-02-20 03:40:26,330 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 181.4MB. Free memory was 142.3MB in the beginning and 142.2MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.15ms. Allocated memory is still 181.4MB. Free memory was 141.1MB in the beginning and 139.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.58ms. Allocated memory is still 181.4MB. Free memory was 139.5MB in the beginning and 138.6MB in the end (delta: 909.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 170.46ms. Allocated memory is still 181.4MB. Free memory was 138.5MB in the beginning and 129.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 884903.13ms. Allocated memory was 181.4MB in the beginning and 576.7MB in the end (delta: 395.3MB). Free memory was 128.9MB in the beginning and 409.9MB in the end (delta: -280.9MB). Peak memory consumption was 383.2MB. 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: 884.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, 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