/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:54:42,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:54:42,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:54:42,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:54:42,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:54:42,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:54:42,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:54:42,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:54:42,704 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:54:42,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:54:42,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:54:42,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:54:42,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:54:42,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:54:42,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:54:42,711 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:54:42,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:54:42,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:54:42,711 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:54:42,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:54:42,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:42,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:54:42,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:54:42,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:54:42,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:54:42,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:54:42,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:54:42,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:54:42,714 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:54:42,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:54:42,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:54:42,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:54:42,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:54:42,889 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:54:42,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-11-10 11:54:43,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:54:44,125 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:54:44,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-11-10 11:54:44,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e12801b7/c2c4e50188a54d6389c25b5fb303a97c/FLAG550aedf4c [2023-11-10 11:54:44,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e12801b7/c2c4e50188a54d6389c25b5fb303a97c [2023-11-10 11:54:44,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:54:44,154 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:54:44,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:44,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:54:44,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:54:44,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f0179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44, skipping insertion in model container [2023-11-10 11:54:44,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:54:44,291 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-11-10 11:54:44,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:44,381 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:54:44,397 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-11-10 11:54:44,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:44,451 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:54:44,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44 WrapperNode [2023-11-10 11:54:44,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:44,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:44,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:54:44,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:54:44,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,495 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-10 11:54:44,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:44,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:54:44,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:54:44,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:54:44,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:54:44,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:54:44,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:54:44,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:54:44,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (1/1) ... [2023-11-10 11:54:44,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:44,567 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) [2023-11-10 11:54:44,621 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 [2023-11-10 11:54:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:54:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:54:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:54:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:54:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-10 11:54:44,631 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-10 11:54:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:54:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:54:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:54:44,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:54:44,633 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:54:44,736 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:54:44,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:54:44,855 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:54:44,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:54:44,862 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:54:44,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:44 BoogieIcfgContainer [2023-11-10 11:54:44,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:54:44,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:54:44,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:54:44,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:54:44,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:54:44" (1/3) ... [2023-11-10 11:54:44,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe0a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:44, skipping insertion in model container [2023-11-10 11:54:44,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:44" (2/3) ... [2023-11-10 11:54:44,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe0a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:44, skipping insertion in model container [2023-11-10 11:54:44,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:44" (3/3) ... [2023-11-10 11:54:44,870 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2023-11-10 11:54:44,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:54:44,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:54:44,883 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:54:44,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:54:44,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 64 transitions, 132 flow [2023-11-10 11:54:44,956 INFO L124 PetriNetUnfolderBase]: 1/63 cut-off events. [2023-11-10 11:54:44,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:44,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-11-10 11:54:44,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 64 transitions, 132 flow [2023-11-10 11:54:44,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-11-10 11:54:44,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:54:44,973 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1511d7dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:54:44,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-10 11:54:44,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:54:44,984 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2023-11-10 11:54:44,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:44,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:44,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:44,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:44,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:44,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1529278746, now seen corresponding path program 1 times [2023-11-10 11:54:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567669030] [2023-11-10 11:54:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:45,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567669030] [2023-11-10 11:54:45,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567669030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:45,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:45,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:45,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290037047] [2023-11-10 11:54:45,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:45,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:45,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:45,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 64 [2023-11-10 11:54:45,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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) [2023-11-10 11:54:45,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:45,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 64 [2023-11-10 11:54:45,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:45,610 INFO L124 PetriNetUnfolderBase]: 8/90 cut-off events. [2023-11-10 11:54:45,610 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:54:45,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 90 events. 8/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 170 event pairs, 0 based on Foata normal form. 3/93 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2023-11-10 11:54:45,612 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 8 selfloop transitions, 3 changer transitions 9/63 dead transitions. [2023-11-10 11:54:45,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 169 flow [2023-11-10 11:54:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 11:54:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 11:54:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 379 transitions. [2023-11-10 11:54:45,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8459821428571429 [2023-11-10 11:54:45,622 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 379 transitions. [2023-11-10 11:54:45,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 379 transitions. [2023-11-10 11:54:45,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:45,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 379 transitions. [2023-11-10 11:54:45,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 54.142857142857146) internal successors, (379), 7 states have internal predecessors, (379), 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) [2023-11-10 11:54:45,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 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) [2023-11-10 11:54:45,643 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 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) [2023-11-10 11:54:45,644 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 105 flow. Second operand 7 states and 379 transitions. [2023-11-10 11:54:45,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 169 flow [2023-11-10 11:54:45,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:54:45,648 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 123 flow [2023-11-10 11:54:45,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=123, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2023-11-10 11:54:45,651 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2023-11-10 11:54:45,651 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 123 flow [2023-11-10 11:54:45,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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) [2023-11-10 11:54:45,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:45,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:45,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:54:45,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:45,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:45,654 INFO L85 PathProgramCache]: Analyzing trace with hash 753576344, now seen corresponding path program 1 times [2023-11-10 11:54:45,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084113634] [2023-11-10 11:54:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:45,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:45,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084113634] [2023-11-10 11:54:45,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084113634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:45,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:45,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-10 11:54:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492880682] [2023-11-10 11:54:45,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:45,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-10 11:54:45,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:45,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-10 11:54:45,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-10 11:54:45,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2023-11-10 11:54:45,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-10 11:54:45,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:45,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2023-11-10 11:54:45,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:45,786 INFO L124 PetriNetUnfolderBase]: 11/112 cut-off events. [2023-11-10 11:54:45,786 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-10 11:54:45,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 112 events. 11/112 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 5 based on Foata normal form. 3/115 useless extension candidates. Maximal degree in co-relation 172. Up to 29 conditions per place. [2023-11-10 11:54:45,788 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 14 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-10 11:54:45,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 171 flow [2023-11-10 11:54:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-10 11:54:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-10 11:54:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2023-11-10 11:54:45,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.84375 [2023-11-10 11:54:45,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2023-11-10 11:54:45,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2023-11-10 11:54:45,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:45,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2023-11-10 11:54:45,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-10 11:54:45,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-10 11:54:45,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2023-11-10 11:54:45,791 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 123 flow. Second operand 3 states and 162 transitions. [2023-11-10 11:54:45,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 171 flow [2023-11-10 11:54:45,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 157 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-10 11:54:45,793 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 136 flow [2023-11-10 11:54:45,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2023-11-10 11:54:45,793 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-11-10 11:54:45,793 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 136 flow [2023-11-10 11:54:45,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-10 11:54:45,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:45,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:45,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:54:45,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:45,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1848905768, now seen corresponding path program 2 times [2023-11-10 11:54:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843897148] [2023-11-10 11:54:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843897148] [2023-11-10 11:54:45,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843897148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:45,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:45,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:54:45,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522529674] [2023-11-10 11:54:45,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:45,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:54:45,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:54:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:54:45,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 64 [2023-11-10 11:54:45,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 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) [2023-11-10 11:54:45,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:45,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 64 [2023-11-10 11:54:45,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:45,987 INFO L124 PetriNetUnfolderBase]: 8/78 cut-off events. [2023-11-10 11:54:45,988 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-10 11:54:45,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 78 events. 8/78 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 3 based on Foata normal form. 3/81 useless extension candidates. Maximal degree in co-relation 101. Up to 19 conditions per place. [2023-11-10 11:54:45,988 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-11-10 11:54:45,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 173 flow [2023-11-10 11:54:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:54:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:54:45,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 228 transitions. [2023-11-10 11:54:45,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7125 [2023-11-10 11:54:45,990 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 228 transitions. [2023-11-10 11:54:45,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 228 transitions. [2023-11-10 11:54:45,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:45,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 228 transitions. [2023-11-10 11:54:45,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 45.6) internal successors, (228), 5 states have internal predecessors, (228), 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) [2023-11-10 11:54:45,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2023-11-10 11:54:45,992 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2023-11-10 11:54:45,992 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 136 flow. Second operand 5 states and 228 transitions. [2023-11-10 11:54:45,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 173 flow [2023-11-10 11:54:45,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:54:45,994 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2023-11-10 11:54:45,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2023-11-10 11:54:45,994 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2023-11-10 11:54:45,994 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2023-11-10 11:54:45,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 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) [2023-11-10 11:54:45,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-10 11:54:45,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-10 11:54:45,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:54:45,997 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-10 11:54:46,000 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:54:46,000 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:54:46,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:54:46 BasicIcfg [2023-11-10 11:54:46,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:54:46,005 INFO L158 Benchmark]: Toolchain (without parser) took 1850.85ms. Allocated memory was 162.5MB in the beginning and 200.3MB in the end (delta: 37.7MB). Free memory was 117.9MB in the beginning and 153.1MB in the end (delta: -35.2MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. [2023-11-10 11:54:46,005 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 162.5MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:46,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.00ms. Allocated memory is still 162.5MB. Free memory was 117.5MB in the beginning and 98.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-10 11:54:46,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.09ms. Allocated memory is still 162.5MB. Free memory was 98.6MB in the beginning and 96.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:54:46,006 INFO L158 Benchmark]: Boogie Preprocessor took 29.38ms. Allocated memory is still 162.5MB. Free memory was 96.4MB in the beginning and 95.5MB in the end (delta: 924.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:54:46,006 INFO L158 Benchmark]: RCFGBuilder took 337.12ms. Allocated memory is still 162.5MB. Free memory was 95.3MB in the beginning and 82.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-10 11:54:46,006 INFO L158 Benchmark]: TraceAbstraction took 1137.87ms. Allocated memory was 162.5MB in the beginning and 200.3MB in the end (delta: 37.7MB). Free memory was 82.3MB in the beginning and 153.1MB in the end (delta: -70.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:46,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 162.5MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 297.00ms. Allocated memory is still 162.5MB. Free memory was 117.5MB in the beginning and 98.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.09ms. Allocated memory is still 162.5MB. Free memory was 98.6MB in the beginning and 96.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.38ms. Allocated memory is still 162.5MB. Free memory was 96.4MB in the beginning and 95.5MB in the end (delta: 924.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 337.12ms. Allocated memory is still 162.5MB. Free memory was 95.3MB in the beginning and 82.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1137.87ms. Allocated memory was 162.5MB in the beginning and 200.3MB in the end (delta: 37.7MB). Free memory was 82.3MB in the beginning and 153.1MB in the end (delta: -70.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 23 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:54:46,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...