/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 15:30:12,908 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 15:30:12,994 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 15:30:13,019 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 15:30:13,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 15:30:13,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 15:30:13,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 15:30:13,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 15:30:13,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 15:30:13,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 15:30:13,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 15:30:13,021 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 15:30:13,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 15:30:13,021 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 15:30:13,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 15:30:13,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 15:30:13,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 15:30:13,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 15:30:13,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 15:30:13,024 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 15:30:13,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-19 15:30:13,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 15:30:13,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 15:30:13,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 15:30:13,265 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 15:30:13,267 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 15:30:13,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2023-05-19 15:30:13,268 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2023-05-19 15:30:13,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 15:30:13,299 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 15:30:13,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 15:30:13,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 15:30:13,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 15:30:13,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,329 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 15:30:13,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 15:30:13,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 15:30:13,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 15:30:13,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 15:30:13,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 15:30:13,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 15:30:13,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 15:30:13,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 15:30:13,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/1) ... [2023-05-19 15:30:13,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 15:30:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 15:30:13,378 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) [2023-05-19 15:30:13,386 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 [2023-05-19 15:30:13,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 15:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 15:30:13,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 15:30:13,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 15:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 15:30:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 15:30:13,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 15:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 15:30:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 15:30:13,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-19 15:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-19 15:30:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-19 15:30:13,415 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 15:30:13,454 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 15:30:13,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 15:30:13,546 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 15:30:13,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 15:30:13,578 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 15:30:13,580 INFO L202 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 03:30:13 BoogieIcfgContainer [2023-05-19 15:30:13,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 15:30:13,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 15:30:13,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 15:30:13,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 15:30:13,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 03:30:13" (1/2) ... [2023-05-19 15:30:13,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180015c0 and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 03:30:13, skipping insertion in model container [2023-05-19 15:30:13,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 03:30:13" (2/2) ... [2023-05-19 15:30:13,601 INFO L112 eAbstractionObserver]: Analyzing ICFG misc-5.wvr.bpl [2023-05-19 15:30:13,607 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 15:30:13,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 15:30:13,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 15:30:13,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 15:30:13,676 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-19 15:30:13,720 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 15:30:13,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 15:30:13,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 15:30:13,729 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) [2023-05-19 15:30:13,732 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 [2023-05-19 15:30:13,789 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 15:30:13,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 15:30:13,820 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62868102, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 15:30:13,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-19 15:30:13,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 15:30:13,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 15:30:13,937 INFO L85 PathProgramCache]: Analyzing trace with hash -867417072, now seen corresponding path program 1 times [2023-05-19 15:30:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 15:30:13,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580109751] [2023-05-19 15:30:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 15:30:13,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 15:30:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 15:30:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 15:30:14,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580109751] [2023-05-19 15:30:14,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580109751] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 15:30:14,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-19 15:30:14,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-19 15:30:14,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494419412] [2023-05-19 15:30:14,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 15:30:14,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-19 15:30:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 15:30:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-19 15:30:14,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-19 15:30:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:14,108 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 15:30:14,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 15:30:14,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 15:30:14,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-19 15:30:14,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 15:30:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 15:30:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1494456396, now seen corresponding path program 1 times [2023-05-19 15:30:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 15:30:14,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695498570] [2023-05-19 15:30:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 15:30:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 15:30:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 15:30:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 15:30:14,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695498570] [2023-05-19 15:30:14,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695498570] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 15:30:14,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952917592] [2023-05-19 15:30:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 15:30:14,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 15:30:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 15:30:14,587 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) [2023-05-19 15:30:14,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 15:30:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 15:30:14,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-19 15:30:14,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 15:30:14,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:14,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 15:30:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:15,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952917592] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 15:30:15,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 15:30:15,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2023-05-19 15:30:15,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087679735] [2023-05-19 15:30:15,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 15:30:15,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-19 15:30:15,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 15:30:15,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-19 15:30:15,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-05-19 15:30:15,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:15,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 15:30:15,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 15:30:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 15:30:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 15:30:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 15:30:15,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-19 15:30:16,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-05-19 15:30:16,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 15:30:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 15:30:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash 954830290, now seen corresponding path program 2 times [2023-05-19 15:30:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 15:30:16,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681429444] [2023-05-19 15:30:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 15:30:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 15:30:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 15:30:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:16,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 15:30:16,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681429444] [2023-05-19 15:30:16,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681429444] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 15:30:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320217726] [2023-05-19 15:30:16,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 15:30:16,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 15:30:16,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 15:30:16,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 15:30:16,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 15:30:16,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 15:30:16,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 15:30:16,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-19 15:30:16,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 15:30:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:17,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 15:30:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 15:30:18,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320217726] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 15:30:18,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 15:30:18,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-05-19 15:30:18,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207335460] [2023-05-19 15:30:18,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 15:30:18,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-05-19 15:30:18,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 15:30:18,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-05-19 15:30:18,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-05-19 15:30:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:18,692 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 15:30:18,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 26 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 15:30:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-19 15:30:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 15:30:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 15:30:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-19 15:30:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 15:30:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 15:30:19,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-19 15:30:19,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 15:30:19,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-19 15:30:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 15:30:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash 844800862, now seen corresponding path program 3 times [2023-05-19 15:30:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 15:30:19,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378150602] [2023-05-19 15:30:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 15:30:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 15:30:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-05-19 15:44:38,547 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 [2023-05-19 15:44:38,557 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 [2023-05-19 15:44:39,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-19 15:44:39,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown