/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:30:40,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:30:40,967 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 [2023-11-29 19:30:40,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:30:40,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:30:40,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:30:40,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:30:40,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:30:40,992 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:30:40,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:30:40,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:30:40,995 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:30:40,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:30:40,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:30:40,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:30:40,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:30:40,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:30:40,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:30:40,997 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:30:40,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:30:40,997 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:30:40,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:30:40,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:30:40,998 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:30:40,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:30:40,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:30:40,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:30:40,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:30:40,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:30:40,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:30:40,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:30:41,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:30:41,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:30:41,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:30:41,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:30:41,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:30:41,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:30:41,213 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:30:41,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:30:41,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-11-29 19:30:42,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:30:42,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:30:42,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-11-29 19:30:42,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa42061d/52b82dd25b9e47918e38c270c0988a18/FLAG486702057 [2023-11-29 19:30:42,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa42061d/52b82dd25b9e47918e38c270c0988a18 [2023-11-29 19:30:42,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:30:42,410 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:30:42,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:30:42,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:30:42,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:30:42,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccf1373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42, skipping insertion in model container [2023-11-29 19:30:42,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:30:42,549 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-11-29 19:30:42,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:30:42,725 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:30:42,732 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-11-29 19:30:42,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:30:42,798 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:30:42,798 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:30:42,803 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:30:42,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42 WrapperNode [2023-11-29 19:30:42,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:30:42,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:30:42,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:30:42,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:30:42,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,864 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-11-29 19:30:42,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:30:42,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:30:42,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:30:42,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:30:42,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:30:42,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:30:42,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:30:42,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:30:42,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (1/1) ... [2023-11-29 19:30:42,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:30:42,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:30:42,947 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) [2023-11-29 19:30:42,972 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 [2023-11-29 19:30:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:30:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:30:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:30:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:30:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:30:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:30:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:30:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:30:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:30:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:30:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:30:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:30:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:30:42,980 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 19:30:43,118 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:30:43,120 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:30:43,378 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:30:43,518 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:30:43,518 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:30:43,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:30:43 BoogieIcfgContainer [2023-11-29 19:30:43,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:30:43,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:30:43,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:30:43,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:30:43,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:30:42" (1/3) ... [2023-11-29 19:30:43,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2da032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:30:43, skipping insertion in model container [2023-11-29 19:30:43,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42" (2/3) ... [2023-11-29 19:30:43,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2da032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:30:43, skipping insertion in model container [2023-11-29 19:30:43,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:30:43" (3/3) ... [2023-11-29 19:30:43,525 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-11-29 19:30:43,536 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:30:43,536 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 19:30:43,536 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:30:43,567 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:30:43,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 194 flow [2023-11-29 19:30:43,642 INFO L124 PetriNetUnfolderBase]: 2/91 cut-off events. [2023-11-29 19:30:43,642 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:30:43,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-29 19:30:43,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 93 transitions, 194 flow [2023-11-29 19:30:43,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 188 flow [2023-11-29 19:30:43,669 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:30:43,674 INFO L362 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=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;@3e924145, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:30:43,675 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-29 19:30:43,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:30:43,686 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2023-11-29 19:30:43,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:30:43,686 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:43,687 INFO L232 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, 1, 1] [2023-11-29 19:30:43,687 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:43,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:43,691 INFO L85 PathProgramCache]: Analyzing trace with hash -436960994, now seen corresponding path program 1 times [2023-11-29 19:30:43,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:43,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831629019] [2023-11-29 19:30:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:44,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:44,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831629019] [2023-11-29 19:30:44,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831629019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:44,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:44,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 19:30:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863016054] [2023-11-29 19:30:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:44,122 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 19:30:44,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 19:30:44,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 19:30:44,151 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 93 [2023-11-29 19:30:44,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-11-29 19:30:44,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:44,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 93 [2023-11-29 19:30:44,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:44,291 INFO L124 PetriNetUnfolderBase]: 31/300 cut-off events. [2023-11-29 19:30:44,291 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 19:30:44,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 300 events. 31/300 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1335 event pairs, 15 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 330. Up to 53 conditions per place. [2023-11-29 19:30:44,295 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 11 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2023-11-29 19:30:44,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 212 flow [2023-11-29 19:30:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 19:30:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 19:30:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-11-29 19:30:44,308 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9139784946236559 [2023-11-29 19:30:44,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-11-29 19:30:44,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-11-29 19:30:44,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:44,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-11-29 19:30:44,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2023-11-29 19:30:44,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2023-11-29 19:30:44,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2023-11-29 19:30:44,324 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2023-11-29 19:30:44,324 INFO L500 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 212 flow [2023-11-29 19:30:44,325 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-11-29 19:30:44,325 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:44,325 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:44,326 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:30:44,326 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:44,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash -965654164, now seen corresponding path program 1 times [2023-11-29 19:30:44,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:44,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805527843] [2023-11-29 19:30:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:44,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:44,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:44,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805527843] [2023-11-29 19:30:44,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805527843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:44,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:44,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:30:44,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403469004] [2023-11-29 19:30:44,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:44,683 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:30:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:30:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:30:44,685 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 93 [2023-11-29 19:30:44,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2023-11-29 19:30:44,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:44,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 93 [2023-11-29 19:30:44,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:44,956 INFO L124 PetriNetUnfolderBase]: 137/464 cut-off events. [2023-11-29 19:30:44,956 INFO L125 PetriNetUnfolderBase]: For 102/176 co-relation queries the response was YES. [2023-11-29 19:30:44,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 464 events. 137/464 cut-off events. For 102/176 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2432 event pairs, 20 based on Foata normal form. 1/453 useless extension candidates. Maximal degree in co-relation 864. Up to 157 conditions per place. [2023-11-29 19:30:44,961 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 17 selfloop transitions, 2 changer transitions 46/126 dead transitions. [2023-11-29 19:30:44,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 126 transitions, 446 flow [2023-11-29 19:30:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:30:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:30:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2023-11-29 19:30:44,965 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8267622461170848 [2023-11-29 19:30:44,965 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 692 transitions. [2023-11-29 19:30:44,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 692 transitions. [2023-11-29 19:30:44,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:44,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 692 transitions. [2023-11-29 19:30:44,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.88888888888889) internal successors, (692), 9 states have internal predecessors, (692), 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) [2023-11-29 19:30:44,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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) [2023-11-29 19:30:44,970 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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) [2023-11-29 19:30:44,970 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2023-11-29 19:30:44,970 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 126 transitions, 446 flow [2023-11-29 19:30:44,971 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2023-11-29 19:30:44,971 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:44,971 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:44,971 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:30:44,971 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:44,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:44,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1071681562, now seen corresponding path program 1 times [2023-11-29 19:30:44,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:44,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467493569] [2023-11-29 19:30:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:44,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467493569] [2023-11-29 19:30:45,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467493569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:45,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 19:30:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760274804] [2023-11-29 19:30:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:45,720 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 19:30:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 19:30:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 19:30:45,721 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 93 [2023-11-29 19:30:45,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 126 transitions, 446 flow. Second operand has 12 states, 12 states have (on average 65.58333333333333) internal successors, (787), 12 states have internal predecessors, (787), 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) [2023-11-29 19:30:45,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:45,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 93 [2023-11-29 19:30:45,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:46,252 INFO L124 PetriNetUnfolderBase]: 418/1137 cut-off events. [2023-11-29 19:30:46,253 INFO L125 PetriNetUnfolderBase]: For 362/648 co-relation queries the response was YES. [2023-11-29 19:30:46,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2909 conditions, 1137 events. 418/1137 cut-off events. For 362/648 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7440 event pairs, 35 based on Foata normal form. 10/1130 useless extension candidates. Maximal degree in co-relation 2851. Up to 424 conditions per place. [2023-11-29 19:30:46,257 INFO L140 encePairwiseOnDemand]: 78/93 looper letters, 25 selfloop transitions, 14 changer transitions 127/220 dead transitions. [2023-11-29 19:30:46,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 220 transitions, 1193 flow [2023-11-29 19:30:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 19:30:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 19:30:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1379 transitions. [2023-11-29 19:30:46,260 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7413978494623656 [2023-11-29 19:30:46,260 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1379 transitions. [2023-11-29 19:30:46,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1379 transitions. [2023-11-29 19:30:46,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:46,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1379 transitions. [2023-11-29 19:30:46,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 68.95) internal successors, (1379), 20 states have internal predecessors, (1379), 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) [2023-11-29 19:30:46,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 93.0) internal successors, (1953), 21 states have internal predecessors, (1953), 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) [2023-11-29 19:30:46,267 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 93.0) internal successors, (1953), 21 states have internal predecessors, (1953), 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) [2023-11-29 19:30:46,268 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 27 predicate places. [2023-11-29 19:30:46,268 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 220 transitions, 1193 flow [2023-11-29 19:30:46,268 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.58333333333333) internal successors, (787), 12 states have internal predecessors, (787), 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) [2023-11-29 19:30:46,268 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:46,268 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:46,268 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:30:46,268 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:46,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash -342008870, now seen corresponding path program 2 times [2023-11-29 19:30:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:46,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257766839] [2023-11-29 19:30:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:47,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:47,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257766839] [2023-11-29 19:30:47,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257766839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:47,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 19:30:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095093192] [2023-11-29 19:30:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:47,279 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 19:30:47,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:47,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 19:30:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 19:30:47,282 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2023-11-29 19:30:47,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 220 transitions, 1193 flow. Second operand has 13 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 states have internal predecessors, (827), 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) [2023-11-29 19:30:47,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:47,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2023-11-29 19:30:47,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:48,079 INFO L124 PetriNetUnfolderBase]: 520/1450 cut-off events. [2023-11-29 19:30:48,079 INFO L125 PetriNetUnfolderBase]: For 716/1284 co-relation queries the response was YES. [2023-11-29 19:30:48,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4694 conditions, 1450 events. 520/1450 cut-off events. For 716/1284 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10516 event pairs, 22 based on Foata normal form. 25/1460 useless extension candidates. Maximal degree in co-relation 4624. Up to 622 conditions per place. [2023-11-29 19:30:48,085 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 28 selfloop transitions, 21 changer transitions 288/389 dead transitions. [2023-11-29 19:30:48,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 389 transitions, 2951 flow [2023-11-29 19:30:48,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 19:30:48,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-29 19:30:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1665 transitions. [2023-11-29 19:30:48,089 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7161290322580646 [2023-11-29 19:30:48,089 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1665 transitions. [2023-11-29 19:30:48,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1665 transitions. [2023-11-29 19:30:48,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:48,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1665 transitions. [2023-11-29 19:30:48,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 66.6) internal successors, (1665), 25 states have internal predecessors, (1665), 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) [2023-11-29 19:30:48,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 93.0) internal successors, (2418), 26 states have internal predecessors, (2418), 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) [2023-11-29 19:30:48,095 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 93.0) internal successors, (2418), 26 states have internal predecessors, (2418), 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) [2023-11-29 19:30:48,095 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 51 predicate places. [2023-11-29 19:30:48,096 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 389 transitions, 2951 flow [2023-11-29 19:30:48,096 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 states have internal predecessors, (827), 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) [2023-11-29 19:30:48,096 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:48,096 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:48,096 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:30:48,096 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:48,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1174974181, now seen corresponding path program 1 times [2023-11-29 19:30:48,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:48,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503397017] [2023-11-29 19:30:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:48,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:48,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503397017] [2023-11-29 19:30:48,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503397017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:48,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:48,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:30:48,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119618934] [2023-11-29 19:30:48,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:48,265 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:30:48,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:48,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:30:48,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:30:48,267 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 93 [2023-11-29 19:30:48,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 389 transitions, 2951 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2023-11-29 19:30:48,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:48,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 93 [2023-11-29 19:30:48,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:48,478 INFO L124 PetriNetUnfolderBase]: 291/827 cut-off events. [2023-11-29 19:30:48,478 INFO L125 PetriNetUnfolderBase]: For 1772/1794 co-relation queries the response was YES. [2023-11-29 19:30:48,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 827 events. 291/827 cut-off events. For 1772/1794 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4535 event pairs, 13 based on Foata normal form. 7/819 useless extension candidates. Maximal degree in co-relation 2605. Up to 336 conditions per place. [2023-11-29 19:30:48,482 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 45 selfloop transitions, 8 changer transitions 94/217 dead transitions. [2023-11-29 19:30:48,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 217 transitions, 1626 flow [2023-11-29 19:30:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 19:30:48,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 19:30:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2023-11-29 19:30:48,484 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8193548387096774 [2023-11-29 19:30:48,484 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 762 transitions. [2023-11-29 19:30:48,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 762 transitions. [2023-11-29 19:30:48,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:48,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 762 transitions. [2023-11-29 19:30:48,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.2) internal successors, (762), 10 states have internal predecessors, (762), 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) [2023-11-29 19:30:48,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 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) [2023-11-29 19:30:48,487 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 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) [2023-11-29 19:30:48,488 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 39 predicate places. [2023-11-29 19:30:48,488 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 217 transitions, 1626 flow [2023-11-29 19:30:48,488 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2023-11-29 19:30:48,488 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:48,488 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:48,488 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:30:48,489 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:48,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:48,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1944655578, now seen corresponding path program 1 times [2023-11-29 19:30:48,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:48,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292614088] [2023-11-29 19:30:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:48,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:49,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292614088] [2023-11-29 19:30:49,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292614088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:49,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:49,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 19:30:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165581043] [2023-11-29 19:30:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:49,431 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 19:30:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:49,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 19:30:49,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 19:30:49,433 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 93 [2023-11-29 19:30:49,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 217 transitions, 1626 flow. Second operand has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 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) [2023-11-29 19:30:49,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:49,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 93 [2023-11-29 19:30:49,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:49,859 INFO L124 PetriNetUnfolderBase]: 477/1394 cut-off events. [2023-11-29 19:30:49,860 INFO L125 PetriNetUnfolderBase]: For 4072/4116 co-relation queries the response was YES. [2023-11-29 19:30:49,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5033 conditions, 1394 events. 477/1394 cut-off events. For 4072/4116 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9099 event pairs, 20 based on Foata normal form. 8/1375 useless extension candidates. Maximal degree in co-relation 4946. Up to 562 conditions per place. [2023-11-29 19:30:49,866 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 54 selfloop transitions, 28 changer transitions 184/334 dead transitions. [2023-11-29 19:30:49,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 334 transitions, 3310 flow [2023-11-29 19:30:49,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 19:30:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 19:30:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 959 transitions. [2023-11-29 19:30:49,869 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7365591397849462 [2023-11-29 19:30:49,869 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 959 transitions. [2023-11-29 19:30:49,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 959 transitions. [2023-11-29 19:30:49,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:49,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 959 transitions. [2023-11-29 19:30:49,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.5) internal successors, (959), 14 states have internal predecessors, (959), 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) [2023-11-29 19:30:49,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 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) [2023-11-29 19:30:49,872 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 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) [2023-11-29 19:30:49,873 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 52 predicate places. [2023-11-29 19:30:49,873 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 334 transitions, 3310 flow [2023-11-29 19:30:49,873 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 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) [2023-11-29 19:30:49,873 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:49,874 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:49,874 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:30:49,874 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:49,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash -585097510, now seen corresponding path program 2 times [2023-11-29 19:30:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:49,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778959789] [2023-11-29 19:30:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:51,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:51,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778959789] [2023-11-29 19:30:51,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778959789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:51,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:51,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 19:30:51,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586075282] [2023-11-29 19:30:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:51,182 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 19:30:51,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 19:30:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 19:30:51,184 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2023-11-29 19:30:51,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 334 transitions, 3310 flow. Second operand has 14 states, 14 states have (on average 63.642857142857146) internal successors, (891), 14 states have internal predecessors, (891), 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) [2023-11-29 19:30:51,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:51,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2023-11-29 19:30:51,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:51,972 INFO L124 PetriNetUnfolderBase]: 637/1855 cut-off events. [2023-11-29 19:30:51,973 INFO L125 PetriNetUnfolderBase]: For 7620/7758 co-relation queries the response was YES. [2023-11-29 19:30:51,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7392 conditions, 1855 events. 637/1855 cut-off events. For 7620/7758 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 13374 event pairs, 22 based on Foata normal form. 81/1902 useless extension candidates. Maximal degree in co-relation 7293. Up to 738 conditions per place. [2023-11-29 19:30:51,981 INFO L140 encePairwiseOnDemand]: 76/93 looper letters, 68 selfloop transitions, 39 changer transitions 253/428 dead transitions. [2023-11-29 19:30:51,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 428 transitions, 5191 flow [2023-11-29 19:30:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:30:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:30:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1087 transitions. [2023-11-29 19:30:51,983 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.730510752688172 [2023-11-29 19:30:51,984 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1087 transitions. [2023-11-29 19:30:51,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1087 transitions. [2023-11-29 19:30:51,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:51,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1087 transitions. [2023-11-29 19:30:51,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.9375) internal successors, (1087), 16 states have internal predecessors, (1087), 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) [2023-11-29 19:30:51,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 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) [2023-11-29 19:30:51,990 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 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) [2023-11-29 19:30:51,990 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 67 predicate places. [2023-11-29 19:30:51,990 INFO L500 AbstractCegarLoop]: Abstraction has has 163 places, 428 transitions, 5191 flow [2023-11-29 19:30:51,991 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 63.642857142857146) internal successors, (891), 14 states have internal predecessors, (891), 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) [2023-11-29 19:30:51,991 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:51,991 INFO L232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:30:51,991 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:30:51,991 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:51,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1903019042, now seen corresponding path program 3 times [2023-11-29 19:30:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:51,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856520428] [2023-11-29 19:30:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:52,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856520428] [2023-11-29 19:30:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856520428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:52,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:52,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:30:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690632760] [2023-11-29 19:30:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:52,140 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:30:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:30:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:30:52,141 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 93 [2023-11-29 19:30:52,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 428 transitions, 5191 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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) [2023-11-29 19:30:52,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:52,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 93 [2023-11-29 19:30:52,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:52,428 INFO L124 PetriNetUnfolderBase]: 443/1156 cut-off events. [2023-11-29 19:30:52,429 INFO L125 PetriNetUnfolderBase]: For 6436/6614 co-relation queries the response was YES. [2023-11-29 19:30:52,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 1156 events. 443/1156 cut-off events. For 6436/6614 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7616 event pairs, 22 based on Foata normal form. 74/1223 useless extension candidates. Maximal degree in co-relation 5019. Up to 353 conditions per place. [2023-11-29 19:30:52,433 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 43 selfloop transitions, 9 changer transitions 206/317 dead transitions. [2023-11-29 19:30:52,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 317 transitions, 4099 flow [2023-11-29 19:30:52,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:30:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:30:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 957 transitions. [2023-11-29 19:30:52,437 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7915632754342432 [2023-11-29 19:30:52,437 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 957 transitions. [2023-11-29 19:30:52,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 957 transitions. [2023-11-29 19:30:52,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:52,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 957 transitions. [2023-11-29 19:30:52,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.61538461538461) internal successors, (957), 13 states have internal predecessors, (957), 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) [2023-11-29 19:30:52,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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) [2023-11-29 19:30:52,442 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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) [2023-11-29 19:30:52,444 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 64 predicate places. [2023-11-29 19:30:52,444 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 317 transitions, 4099 flow [2023-11-29 19:30:52,445 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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) [2023-11-29 19:30:52,445 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:52,449 INFO L232 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, 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] [2023-11-29 19:30:52,449 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:30:52,449 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:52,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:52,449 INFO L85 PathProgramCache]: Analyzing trace with hash 93677177, now seen corresponding path program 1 times [2023-11-29 19:30:52,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:52,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889489954] [2023-11-29 19:30:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:52,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:52,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:52,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889489954] [2023-11-29 19:30:52,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889489954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:52,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:30:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476373525] [2023-11-29 19:30:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:52,913 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:30:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:30:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:30:52,914 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 93 [2023-11-29 19:30:52,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 317 transitions, 4099 flow. Second operand has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 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) [2023-11-29 19:30:52,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:52,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 93 [2023-11-29 19:30:52,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:53,218 INFO L124 PetriNetUnfolderBase]: 821/2049 cut-off events. [2023-11-29 19:30:53,218 INFO L125 PetriNetUnfolderBase]: For 18354/18710 co-relation queries the response was YES. [2023-11-29 19:30:53,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 2049 events. 821/2049 cut-off events. For 18354/18710 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 15313 event pairs, 42 based on Foata normal form. 179/2217 useless extension candidates. Maximal degree in co-relation 9886. Up to 669 conditions per place. [2023-11-29 19:30:53,226 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 35 selfloop transitions, 4 changer transitions 348/442 dead transitions. [2023-11-29 19:30:53,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 442 transitions, 6954 flow [2023-11-29 19:30:53,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 19:30:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 19:30:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 459 transitions. [2023-11-29 19:30:53,227 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7050691244239631 [2023-11-29 19:30:53,227 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 459 transitions. [2023-11-29 19:30:53,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 459 transitions. [2023-11-29 19:30:53,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:53,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 459 transitions. [2023-11-29 19:30:53,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.57142857142857) internal successors, (459), 7 states have internal predecessors, (459), 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) [2023-11-29 19:30:53,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 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) [2023-11-29 19:30:53,231 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 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) [2023-11-29 19:30:53,232 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 70 predicate places. [2023-11-29 19:30:53,232 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 442 transitions, 6954 flow [2023-11-29 19:30:53,232 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 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) [2023-11-29 19:30:53,232 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:30:53,232 INFO L232 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, 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] [2023-11-29 19:30:53,232 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 19:30:53,233 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 19:30:53,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:30:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1389726561, now seen corresponding path program 2 times [2023-11-29 19:30:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:30:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045524923] [2023-11-29 19:30:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:30:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:30:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:30:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:30:54,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:30:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045524923] [2023-11-29 19:30:54,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045524923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:30:54,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:30:54,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 19:30:54,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835830081] [2023-11-29 19:30:54,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:30:54,996 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 19:30:54,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:30:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 19:30:54,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-29 19:30:54,998 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 93 [2023-11-29 19:30:54,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 442 transitions, 6954 flow. Second operand has 16 states, 16 states have (on average 59.75) internal successors, (956), 16 states have internal predecessors, (956), 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) [2023-11-29 19:30:54,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:30:54,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 93 [2023-11-29 19:30:54,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:30:55,535 INFO L124 PetriNetUnfolderBase]: 1006/2459 cut-off events. [2023-11-29 19:30:55,535 INFO L125 PetriNetUnfolderBase]: For 28520/29608 co-relation queries the response was YES. [2023-11-29 19:30:55,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13013 conditions, 2459 events. 1006/2459 cut-off events. For 28520/29608 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19425 event pairs, 53 based on Foata normal form. 197/2634 useless extension candidates. Maximal degree in co-relation 12881. Up to 826 conditions per place. [2023-11-29 19:30:55,549 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 0 selfloop transitions, 0 changer transitions 515/515 dead transitions. [2023-11-29 19:30:55,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 515 transitions, 9240 flow [2023-11-29 19:30:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 19:30:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 19:30:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 862 transitions. [2023-11-29 19:30:55,550 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6620583717357911 [2023-11-29 19:30:55,551 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 862 transitions. [2023-11-29 19:30:55,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 862 transitions. [2023-11-29 19:30:55,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:30:55,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 862 transitions. [2023-11-29 19:30:55,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.57142857142857) internal successors, (862), 14 states have internal predecessors, (862), 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) [2023-11-29 19:30:55,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 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) [2023-11-29 19:30:55,557 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 93.0) internal successors, (1395), 15 states have internal predecessors, (1395), 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) [2023-11-29 19:30:55,558 INFO L307 CegarLoopForPetriNet]: 96 programPoint places, 81 predicate places. [2023-11-29 19:30:55,558 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 515 transitions, 9240 flow [2023-11-29 19:30:55,558 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 59.75) internal successors, (956), 16 states have internal predecessors, (956), 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) [2023-11-29 19:30:55,563 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi000_tso.i_BEv2_AllErrorsAtOnce [2023-11-29 19:30:55,613 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-29 19:30:55,614 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-29 19:30:55,614 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-29 19:30:55,614 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-29 19:30:55,615 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-29 19:30:55,615 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 19:30:55,615 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1] [2023-11-29 19:30:55,618 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:30:55,619 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:30:55,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:30:55 BasicIcfg [2023-11-29 19:30:55,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:30:55,624 INFO L158 Benchmark]: Toolchain (without parser) took 13214.25ms. Allocated memory was 708.8MB in the beginning and 1.1GB in the end (delta: 350.2MB). Free memory was 653.9MB in the beginning and 452.8MB in the end (delta: 201.1MB). Peak memory consumption was 551.1MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,624 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 381.7MB. Free memory is still 330.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:30:55,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.02ms. Allocated memory is still 708.8MB. Free memory was 653.9MB in the beginning and 628.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.94ms. Allocated memory is still 708.8MB. Free memory was 628.3MB in the beginning and 624.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,626 INFO L158 Benchmark]: Boogie Preprocessor took 57.95ms. Allocated memory is still 708.8MB. Free memory was 624.9MB in the beginning and 622.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,626 INFO L158 Benchmark]: RCFGBuilder took 595.10ms. Allocated memory is still 708.8MB. Free memory was 622.8MB in the beginning and 649.7MB in the end (delta: -26.9MB). Peak memory consumption was 32.2MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,626 INFO L158 Benchmark]: TraceAbstraction took 12103.11ms. Allocated memory was 708.8MB in the beginning and 1.1GB in the end (delta: 350.2MB). Free memory was 648.6MB in the beginning and 452.8MB in the end (delta: 195.9MB). Peak memory consumption was 544.0MB. Max. memory is 16.0GB. [2023-11-29 19:30:55,627 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 381.7MB. Free memory is still 330.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 393.02ms. Allocated memory is still 708.8MB. Free memory was 653.9MB in the beginning and 628.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.94ms. Allocated memory is still 708.8MB. Free memory was 628.3MB in the beginning and 624.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 57.95ms. Allocated memory is still 708.8MB. Free memory was 624.9MB in the beginning and 622.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 595.10ms. Allocated memory is still 708.8MB. Free memory was 622.8MB in the beginning and 649.7MB in the end (delta: -26.9MB). Peak memory consumption was 32.2MB. Max. memory is 16.0GB. * TraceAbstraction took 12103.11ms. Allocated memory was 708.8MB in the beginning and 1.1GB in the end (delta: 350.2MB). Free memory was 648.6MB in the beginning and 452.8MB in the end (delta: 195.9MB). Peak memory consumption was 544.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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 5 procedures, 113 locations, 5 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: 12.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 691 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 691 mSDsluCounter, 1082 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 895 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1771 IncrementalHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 187 mSDtfsCounter, 1771 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9240occurred in iteration=10, InterpolantAutomatonStates: 131, 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, 0.3s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 4830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:30:55,646 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...