/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/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/04-mutex_19-call_by_ptr_rc.line394.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 19:13:19,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 19:13:19,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 19:13:19,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-29 19:13:19,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 19:13:19,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 19:13:19,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 19:13:19,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 19:13:19,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 19:13:19,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 19:13:19,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 19:13:19,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 19:13:19,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 19:13:19,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 19:13:19,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 19:13:19,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 19:13:19,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 19:13:19,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 19:13:19,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 19:13:19,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 19:13:19,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 19:13:19,636 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 19:13:19,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 19:13:19,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 19:13:19,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 19:13:19,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 19:13:19,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 19:13:19,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 19:13:19,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 19:13:19,638 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 19:13:19,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 19:13:19,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 19:13:19,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 19:13:19,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 19:13:19,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 19:13:19,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 19:13:19,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 19:13:19,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 19:13:19,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 19:13:19,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 19:13:19,643 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 19:13:19,644 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 19:13:19,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 19:13:19,644 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 19:13:19,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 19:13:19,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 19:13:19,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 19:13:19,841 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 19:13:19,841 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 19:13:19,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/04-mutex_19-call_by_ptr_rc.line394.bpl [2022-09-29 19:13:19,842 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/04-mutex_19-call_by_ptr_rc.line394.bpl' [2022-09-29 19:13:19,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 19:13:19,874 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 19:13:19,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 19:13:19,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 19:13:19,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 19:13:19,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 19:13:19,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 19:13:19,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 19:13:19,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 19:13:19,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/1) ... [2022-09-29 19:13:19,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 19:13:19,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:13:19,948 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) [2022-09-29 19:13:19,967 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 [2022-09-29 19:13:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-29 19:13:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-29 19:13:19,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 19:13:19,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 19:13:19,976 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 19:13:20,090 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 19:13:20,091 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 19:13:20,304 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 19:13:20,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 19:13:20,315 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-29 19:13:20,316 INFO L202 PluginConnector]: Adding new model 04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 07:13:20 BoogieIcfgContainer [2022-09-29 19:13:20,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 19:13:20,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 19:13:20,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 19:13:20,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 19:13:20,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:13:19" (1/2) ... [2022-09-29 19:13:20,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202cb99e and model type 04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 07:13:20, skipping insertion in model container [2022-09-29 19:13:20,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 07:13:20" (2/2) ... [2022-09-29 19:13:20,323 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_19-call_by_ptr_rc.line394.bpl [2022-09-29 19:13:20,328 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 19:13:20,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 19:13:20,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 19:13:20,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 19:13:20,392 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 19:13:20,422 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 19:13:20,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 19:13:20,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:13:20,423 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) [2022-09-29 19:13:20,424 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 [2022-09-29 19:13:20,448 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 19:13:20,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 19:13:20,457 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;@5ff6a70d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 19:13:20,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 19:13:20,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:13:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:13:20,597 INFO L85 PathProgramCache]: Analyzing trace with hash 572755476, now seen corresponding path program 1 times [2022-09-29 19:13:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:13:20,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303581159] [2022-09-29 19:13:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:13:20,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:13:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:13:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:20,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:13:20,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303581159] [2022-09-29 19:13:20,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303581159] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:13:20,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 19:13:20,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 19:13:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075179673] [2022-09-29 19:13:20,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:13:20,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 19:13:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:13:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 19:13:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 19:13:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:20,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:13:20,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 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) [2022-09-29 19:13:20,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:20,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 19:13:20,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:13:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:13:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 573678997, now seen corresponding path program 1 times [2022-09-29 19:13:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:13:20,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678107103] [2022-09-29 19:13:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:13:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:13:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:13:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:21,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:13:21,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678107103] [2022-09-29 19:13:21,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678107103] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:13:21,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 19:13:21,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-29 19:13:21,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579810453] [2022-09-29 19:13:21,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:13:21,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-29 19:13:21,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:13:21,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-29 19:13:21,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-29 19:13:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:13:21,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2022-09-29 19:13:21,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:13:21,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 19:13:21,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:13:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:13:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1669080243, now seen corresponding path program 1 times [2022-09-29 19:13:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:13:21,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547024566] [2022-09-29 19:13:21,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:13:21,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:13:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:13:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:21,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:13:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547024566] [2022-09-29 19:13:21,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547024566] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:13:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44408810] [2022-09-29 19:13:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:13:21,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:13:21,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:13:21,237 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) [2022-09-29 19:13:21,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-29 19:13:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:13:21,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 19:13:21,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:13:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:21,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 19:13:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:21,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44408810] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 19:13:21,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 19:13:21,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-29 19:13:21,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351667999] [2022-09-29 19:13:21,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 19:13:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 19:13:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:13:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 19:13:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-29 19:13:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,521 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:13:21,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 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) [2022-09-29 19:13:21,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:13:21,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:13:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:13:21,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-29 19:13:21,811 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,SelfDestructingSolverStorable2 [2022-09-29 19:13:21,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:13:21,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:13:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1044128243, now seen corresponding path program 2 times [2022-09-29 19:13:21,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:13:21,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235387335] [2022-09-29 19:13:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:13:21,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:13:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:13:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:13:21,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:13:21,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235387335] [2022-09-29 19:13:21,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235387335] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:13:21,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767160496] [2022-09-29 19:13:21,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 19:13:21,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:13:21,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:13:21,968 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) [2022-09-29 19:13:21,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-29 19:13:22,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 19:13:22,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 19:13:22,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 17 conjunts are in the unsatisfiable core [2022-09-29 19:13:22,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:13:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-09-29 19:13:22,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 19:13:22,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767160496] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:13:22,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 19:13:22,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-09-29 19:13:22,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258916062] [2022-09-29 19:13:22,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:13:22,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 19:13:22,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:13:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 19:13:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-09-29 19:13:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:22,455 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:13:22,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 7 states have internal predecessors, (134), 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) [2022-09-29 19:13:22,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:22,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:13:22,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:13:22,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:13:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:13:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:13:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-29 19:13:22,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 19:13:22,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-29 19:13:22,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:13:22,835 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-09-29 19:13:22,836 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/2) [2022-09-29 19:13:22,839 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 19:13:22,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 19:13:22,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:13:22,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 19:13:22,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-09-29 19:13:22,844 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 19:13:22,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 19:13:22,845 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;@5ff6a70d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 19:13:22,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 19:13:22,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 19:13:22,847 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 19:13:22,848 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/2) [2022-09-29 19:13:22,848 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-29 19:13:22,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-29 19:13:22,852 INFO L202 PluginConnector]: Adding new model 04-mutex_19-call_by_ptr_rc.line394.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 07:13:22 BasicIcfg [2022-09-29 19:13:22,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-29 19:13:22,853 INFO L158 Benchmark]: Toolchain (without parser) took 2978.93ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 118.4MB in the beginning and 121.4MB in the end (delta: -3.0MB). Peak memory consumption was 49.9MB. Max. memory is 8.0GB. [2022-09-29 19:13:22,853 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 161.5MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 19:13:22,853 INFO L158 Benchmark]: Boogie Preprocessor took 46.72ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 116.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 19:13:22,854 INFO L158 Benchmark]: RCFGBuilder took 391.69ms. Allocated memory is still 161.5MB. Free memory was 116.0MB in the beginning and 137.6MB in the end (delta: -21.6MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. [2022-09-29 19:13:22,854 INFO L158 Benchmark]: TraceAbstraction took 2534.77ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 136.8MB in the beginning and 121.4MB in the end (delta: 15.4MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2022-09-29 19:13:22,858 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 0.11ms. Allocated memory is still 161.5MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 46.72ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 116.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 391.69ms. Allocated memory is still 161.5MB. Free memory was 116.0MB in the beginning and 137.6MB in the end (delta: -21.6MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2534.77ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 136.8MB in the beginning and 121.4MB in the end (delta: 15.4MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 17, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2821, positive: 2733, positive conditional: 2733, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2745, positive: 2733, positive conditional: 0, positive unconditional: 2733, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2745, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 857, unknown conditional: 0, unknown unconditional: 857] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 3, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 17, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2821, positive: 2733, positive conditional: 2733, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2745, positive: 2733, positive conditional: 0, positive unconditional: 2733, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2745, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 857, unknown conditional: 0, unknown unconditional: 857] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 6, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 61, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2821, positive: 2733, positive conditional: 2733, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2745, positive: 2733, positive conditional: 0, positive unconditional: 2733, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2745, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 857, unknown conditional: 0, unknown unconditional: 857] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 13, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 149, positive: 134, positive conditional: 134, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2821, positive: 2733, positive conditional: 2733, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2745, positive: 2733, positive conditional: 0, positive unconditional: 2733, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2745, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 857, unknown conditional: 0, unknown unconditional: 857] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 28, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2577, positive: 2517, positive conditional: 2517, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2821, positive: 2733, positive conditional: 2733, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2745, positive: 2733, positive conditional: 0, positive unconditional: 2733, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2745, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 857, unknown conditional: 0, unknown unconditional: 857] , Statistics on independence cache: Total cache size (in pairs): 857, Positive cache size: 853, Positive conditional cache size: 0, Positive unconditional cache size: 853, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Independence queries for same thread: 76, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.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] , IndependenceRelationWithAbstraction.Statistics on underlying relation: 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: 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: 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] , 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, Independence queries for same thread: 0, Statistics for Abstraction: - PositiveResult [Line: 394]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 190 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 21, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 878 NumberOfCodeBlocks, 767 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 2516 SizeOfPredicates, 9 NumberOfNonLiveVariables, 550 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 114/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 3 procedures, 190 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-29 19:13:22,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Ended with exit code 0 [2022-09-29 19:13:23,083 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 [2022-09-29 19:13:23,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...