/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/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:32:07,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:32:07,321 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 19:32:07,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:32:07,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:32:07,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:32:07,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:32:07,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:32:07,354 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:32:07,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:32:07,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:32:07,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:32:07,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:32:07,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:32:07,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:32:07,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:32:07,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:32:07,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:32:07,360 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:32:07,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:32:07,360 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:32:07,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:32:07,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:32:07,361 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:32:07,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:32:07,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:32:07,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:32:07,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:32:07,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:32:07,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:32:07,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:32:07,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:32:07,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:32:07,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:32:07,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-11-29 19:32:08,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:32:08,998 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:32:08,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-11-29 19:32:09,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a9725c3b/cd5c4597541e49aba53b9d29381d6ee5/FLAG02efac088 [2023-11-29 19:32:09,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a9725c3b/cd5c4597541e49aba53b9d29381d6ee5 [2023-11-29 19:32:09,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:32:09,032 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:32:09,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:32:09,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:32:09,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:32:09,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1367f55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09, skipping insertion in model container [2023-11-29 19:32:09,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:32:09,194 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/safe002_tso.i[945,958] [2023-11-29 19:32:09,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:32:09,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:32:09,392 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/safe002_tso.i[945,958] [2023-11-29 19:32:09,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:32:09,451 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:32:09,451 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:32:09,458 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:32:09,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09 WrapperNode [2023-11-29 19:32:09,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:32:09,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:32:09,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:32:09,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:32:09,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,516 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-11-29 19:32:09,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:32:09,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:32:09,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:32:09,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:32:09,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:32:09,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:32:09,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:32:09,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:32:09,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (1/1) ... [2023-11-29 19:32:09,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:32:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:32:09,591 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 19:32:09,616 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 19:32:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:32:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:32:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:32:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:32:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:32:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:32:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:32:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:32:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:32:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 19:32:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 19:32:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:32:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:32:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:32:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:32:09,627 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 19:32:09,780 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:32:09,782 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:32:09,959 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:32:09,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:32:09,968 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:32:09,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:09 BoogieIcfgContainer [2023-11-29 19:32:09,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:32:09,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:32:09,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:32:09,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:32:09,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:32:09" (1/3) ... [2023-11-29 19:32:09,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647986e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:09, skipping insertion in model container [2023-11-29 19:32:09,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:09" (2/3) ... [2023-11-29 19:32:09,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647986e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:09, skipping insertion in model container [2023-11-29 19:32:09,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:09" (3/3) ... [2023-11-29 19:32:09,977 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2023-11-29 19:32:09,992 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:32:09,992 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 19:32:09,992 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:32:10,037 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:32:10,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 196 flow [2023-11-29 19:32:10,106 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-11-29 19:32:10,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:32:10,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-29 19:32:10,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 196 flow [2023-11-29 19:32:10,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 157 flow [2023-11-29 19:32:10,123 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:32:10,129 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;@78c0d6a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:32:10,129 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 19:32:10,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:32:10,158 INFO L124 PetriNetUnfolderBase]: 1/73 cut-off events. [2023-11-29 19:32:10,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:32:10,158 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:10,159 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] [2023-11-29 19:32:10,159 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:10,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash -371278940, now seen corresponding path program 1 times [2023-11-29 19:32:10,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:10,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716141520] [2023-11-29 19:32:10,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:10,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:10,937 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 19:32:10,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:10,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716141520] [2023-11-29 19:32:10,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716141520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:10,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:10,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:32:10,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186317948] [2023-11-29 19:32:10,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:10,948 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:32:10,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:32:10,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:32:10,983 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2023-11-29 19:32:10,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 19:32:10,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:10,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2023-11-29 19:32:10,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:11,447 INFO L124 PetriNetUnfolderBase]: 371/1153 cut-off events. [2023-11-29 19:32:11,448 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-29 19:32:11,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 1153 events. 371/1153 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8190 event pairs, 57 based on Foata normal form. 33/1153 useless extension candidates. Maximal degree in co-relation 1785. Up to 217 conditions per place. [2023-11-29 19:32:11,458 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 21 selfloop transitions, 8 changer transitions 37/121 dead transitions. [2023-11-29 19:32:11,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 121 transitions, 389 flow [2023-11-29 19:32:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:32:11,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:32:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 682 transitions. [2023-11-29 19:32:11,473 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8236714975845411 [2023-11-29 19:32:11,473 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 682 transitions. [2023-11-29 19:32:11,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 682 transitions. [2023-11-29 19:32:11,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:11,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 682 transitions. [2023-11-29 19:32:11,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.77777777777777) internal successors, (682), 9 states have internal predecessors, (682), 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 19:32:11,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:11,488 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:11,492 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places. [2023-11-29 19:32:11,492 INFO L500 AbstractCegarLoop]: Abstraction has has 91 places, 121 transitions, 389 flow [2023-11-29 19:32:11,493 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 19:32:11,493 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:11,493 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] [2023-11-29 19:32:11,493 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:32:11,493 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:11,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:11,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1935665243, now seen corresponding path program 1 times [2023-11-29 19:32:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:11,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728639842] [2023-11-29 19:32:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:11,788 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 19:32:11,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:11,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728639842] [2023-11-29 19:32:11,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728639842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:11,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:11,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:11,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621569841] [2023-11-29 19:32:11,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:11,793 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:11,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:11,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:11,795 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2023-11-29 19:32:11,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 121 transitions, 389 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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 19:32:11,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:11,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2023-11-29 19:32:11,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:12,192 INFO L124 PetriNetUnfolderBase]: 383/1209 cut-off events. [2023-11-29 19:32:12,193 INFO L125 PetriNetUnfolderBase]: For 74/440 co-relation queries the response was YES. [2023-11-29 19:32:12,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2601 conditions, 1209 events. 383/1209 cut-off events. For 74/440 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8871 event pairs, 1 based on Foata normal form. 24/1206 useless extension candidates. Maximal degree in co-relation 2560. Up to 251 conditions per place. [2023-11-29 19:32:12,202 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 26 selfloop transitions, 13 changer transitions 123/217 dead transitions. [2023-11-29 19:32:12,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 217 transitions, 1103 flow [2023-11-29 19:32:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 973 transitions. [2023-11-29 19:32:12,205 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8135451505016722 [2023-11-29 19:32:12,205 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 973 transitions. [2023-11-29 19:32:12,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 973 transitions. [2023-11-29 19:32:12,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:12,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 973 transitions. [2023-11-29 19:32:12,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.84615384615384) internal successors, (973), 13 states have internal predecessors, (973), 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 19:32:12,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:12,212 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:12,212 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 20 predicate places. [2023-11-29 19:32:12,212 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 217 transitions, 1103 flow [2023-11-29 19:32:12,213 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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 19:32:12,213 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:12,214 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] [2023-11-29 19:32:12,214 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:32:12,214 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:12,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1072953163, now seen corresponding path program 1 times [2023-11-29 19:32:12,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:12,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693370405] [2023-11-29 19:32:12,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:12,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:12,503 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 19:32:12,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:12,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693370405] [2023-11-29 19:32:12,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693370405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:12,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:12,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:12,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186884165] [2023-11-29 19:32:12,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:12,506 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:12,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:12,511 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2023-11-29 19:32:12,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 217 transitions, 1103 flow. Second operand has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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 19:32:12,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:12,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2023-11-29 19:32:12,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:12,841 INFO L124 PetriNetUnfolderBase]: 393/1230 cut-off events. [2023-11-29 19:32:12,841 INFO L125 PetriNetUnfolderBase]: For 200/893 co-relation queries the response was YES. [2023-11-29 19:32:12,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3397 conditions, 1230 events. 393/1230 cut-off events. For 200/893 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9069 event pairs, 2 based on Foata normal form. 28/1233 useless extension candidates. Maximal degree in co-relation 3349. Up to 270 conditions per place. [2023-11-29 19:32:12,849 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 33 selfloop transitions, 12 changer transitions 180/280 dead transitions. [2023-11-29 19:32:12,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 280 transitions, 1934 flow [2023-11-29 19:32:12,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 966 transitions. [2023-11-29 19:32:12,852 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8076923076923077 [2023-11-29 19:32:12,852 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 966 transitions. [2023-11-29 19:32:12,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 966 transitions. [2023-11-29 19:32:12,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:12,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 966 transitions. [2023-11-29 19:32:12,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.3076923076923) internal successors, (966), 13 states have internal predecessors, (966), 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 19:32:12,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:12,857 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:12,859 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 32 predicate places. [2023-11-29 19:32:12,859 INFO L500 AbstractCegarLoop]: Abstraction has has 115 places, 280 transitions, 1934 flow [2023-11-29 19:32:12,859 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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 19:32:12,859 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:12,859 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] [2023-11-29 19:32:12,859 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:32:12,860 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:12,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1467507116, now seen corresponding path program 1 times [2023-11-29 19:32:12,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:12,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842543566] [2023-11-29 19:32:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:12,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:13,053 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 19:32:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:13,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842543566] [2023-11-29 19:32:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842543566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:13,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:13,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:32:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638383393] [2023-11-29 19:32:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:13,055 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:32:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:32:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:32:13,057 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2023-11-29 19:32:13,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 280 transitions, 1934 flow. Second operand has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 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 19:32:13,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:13,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2023-11-29 19:32:13,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:13,482 INFO L124 PetriNetUnfolderBase]: 462/1459 cut-off events. [2023-11-29 19:32:13,483 INFO L125 PetriNetUnfolderBase]: For 433/2333 co-relation queries the response was YES. [2023-11-29 19:32:13,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4983 conditions, 1459 events. 462/1459 cut-off events. For 433/2333 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11564 event pairs, 0 based on Foata normal form. 36/1471 useless extension candidates. Maximal degree in co-relation 4928. Up to 366 conditions per place. [2023-11-29 19:32:13,491 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 22 selfloop transitions, 13 changer transitions 299/389 dead transitions. [2023-11-29 19:32:13,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 389 transitions, 3474 flow [2023-11-29 19:32:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:32:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:32:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1252 transitions. [2023-11-29 19:32:13,495 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8005115089514067 [2023-11-29 19:32:13,495 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1252 transitions. [2023-11-29 19:32:13,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1252 transitions. [2023-11-29 19:32:13,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:13,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1252 transitions. [2023-11-29 19:32:13,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 73.6470588235294) internal successors, (1252), 17 states have internal predecessors, (1252), 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 19:32:13,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:13,504 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:13,505 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 48 predicate places. [2023-11-29 19:32:13,505 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 389 transitions, 3474 flow [2023-11-29 19:32:13,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 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 19:32:13,506 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:13,506 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] [2023-11-29 19:32:13,506 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:32:13,507 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:13,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash -310072544, now seen corresponding path program 1 times [2023-11-29 19:32:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:13,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755310690] [2023-11-29 19:32:13,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:13,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:13,711 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 19:32:13,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755310690] [2023-11-29 19:32:13,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755310690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:13,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:13,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:32:13,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835147958] [2023-11-29 19:32:13,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:13,713 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:32:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:32:13,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:32:13,715 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 92 [2023-11-29 19:32:13,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 389 transitions, 3474 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 19:32:13,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:13,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 92 [2023-11-29 19:32:13,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:14,042 INFO L124 PetriNetUnfolderBase]: 566/1957 cut-off events. [2023-11-29 19:32:14,042 INFO L125 PetriNetUnfolderBase]: For 850/7398 co-relation queries the response was YES. [2023-11-29 19:32:14,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7409 conditions, 1957 events. 566/1957 cut-off events. For 850/7398 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 17957 event pairs, 0 based on Foata normal form. 18/1946 useless extension candidates. Maximal degree in co-relation 7350. Up to 410 conditions per place. [2023-11-29 19:32:14,053 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 22 selfloop transitions, 5 changer transitions 406/496 dead transitions. [2023-11-29 19:32:14,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 496 transitions, 5294 flow [2023-11-29 19:32:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:32:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:32:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2023-11-29 19:32:14,055 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 19:32:14,055 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 690 transitions. [2023-11-29 19:32:14,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 690 transitions. [2023-11-29 19:32:14,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:14,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 690 transitions. [2023-11-29 19:32:14,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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 19:32:14,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:14,058 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:14,059 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 56 predicate places. [2023-11-29 19:32:14,059 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 496 transitions, 5294 flow [2023-11-29 19:32:14,059 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 19:32:14,060 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:14,060 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 19:32:14,060 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:32:14,060 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:14,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 800405516, now seen corresponding path program 1 times [2023-11-29 19:32:14,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:14,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265921000] [2023-11-29 19:32:14,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:14,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:14,212 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 19:32:14,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:14,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265921000] [2023-11-29 19:32:14,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265921000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:14,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:14,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:14,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098483520] [2023-11-29 19:32:14,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:14,213 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:14,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:14,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:14,215 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2023-11-29 19:32:14,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 496 transitions, 5294 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:32:14,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:14,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2023-11-29 19:32:14,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:14,763 INFO L124 PetriNetUnfolderBase]: 673/2771 cut-off events. [2023-11-29 19:32:14,763 INFO L125 PetriNetUnfolderBase]: For 2058/10377 co-relation queries the response was YES. [2023-11-29 19:32:14,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10908 conditions, 2771 events. 673/2771 cut-off events. For 2058/10377 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 29277 event pairs, 10 based on Foata normal form. 49/2781 useless extension candidates. Maximal degree in co-relation 10844. Up to 500 conditions per place. [2023-11-29 19:32:14,773 INFO L140 encePairwiseOnDemand]: 83/92 looper letters, 16 selfloop transitions, 6 changer transitions 552/634 dead transitions. [2023-11-29 19:32:14,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 634 transitions, 7981 flow [2023-11-29 19:32:14,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 992 transitions. [2023-11-29 19:32:14,776 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8294314381270903 [2023-11-29 19:32:14,776 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 992 transitions. [2023-11-29 19:32:14,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 992 transitions. [2023-11-29 19:32:14,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:14,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 992 transitions. [2023-11-29 19:32:14,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.3076923076923) internal successors, (992), 13 states have internal predecessors, (992), 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 19:32:14,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:14,781 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:14,783 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 68 predicate places. [2023-11-29 19:32:14,784 INFO L500 AbstractCegarLoop]: Abstraction has has 151 places, 634 transitions, 7981 flow [2023-11-29 19:32:14,784 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:32:14,784 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:14,784 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 19:32:14,784 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:32:14,784 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:14,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash 145649194, now seen corresponding path program 2 times [2023-11-29 19:32:14,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177738827] [2023-11-29 19:32:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:14,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:14,943 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 19:32:14,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:14,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177738827] [2023-11-29 19:32:14,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177738827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:14,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:14,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:14,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974009200] [2023-11-29 19:32:14,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:14,948 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:14,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:14,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:14,950 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2023-11-29 19:32:14,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 634 transitions, 7981 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:32:14,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:14,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2023-11-29 19:32:14,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:15,549 INFO L124 PetriNetUnfolderBase]: 684/2911 cut-off events. [2023-11-29 19:32:15,549 INFO L125 PetriNetUnfolderBase]: For 3467/15854 co-relation queries the response was YES. [2023-11-29 19:32:15,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12660 conditions, 2911 events. 684/2911 cut-off events. For 3467/15854 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 31533 event pairs, 18 based on Foata normal form. 86/2956 useless extension candidates. Maximal degree in co-relation 12591. Up to 533 conditions per place. [2023-11-29 19:32:15,566 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 14 selfloop transitions, 2 changer transitions 591/664 dead transitions. [2023-11-29 19:32:15,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 664 transitions, 9489 flow [2023-11-29 19:32:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:32:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:32:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1272 transitions. [2023-11-29 19:32:15,570 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8132992327365729 [2023-11-29 19:32:15,570 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1272 transitions. [2023-11-29 19:32:15,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1272 transitions. [2023-11-29 19:32:15,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:15,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1272 transitions. [2023-11-29 19:32:15,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.82352941176471) internal successors, (1272), 17 states have internal predecessors, (1272), 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 19:32:15,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:15,577 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:15,577 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 84 predicate places. [2023-11-29 19:32:15,577 INFO L500 AbstractCegarLoop]: Abstraction has has 167 places, 664 transitions, 9489 flow [2023-11-29 19:32:15,577 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:32:15,578 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:15,578 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 19:32:15,578 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:32:15,578 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:15,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:15,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1222408436, now seen corresponding path program 3 times [2023-11-29 19:32:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084061301] [2023-11-29 19:32:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:15,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:15,714 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 19:32:15,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:15,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084061301] [2023-11-29 19:32:15,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084061301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:15,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:15,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:32:15,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596908989] [2023-11-29 19:32:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:15,716 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:32:15,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:32:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:32:15,718 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:15,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 664 transitions, 9489 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 19:32:15,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:15,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:15,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:16,861 INFO L124 PetriNetUnfolderBase]: 2446/6687 cut-off events. [2023-11-29 19:32:16,862 INFO L125 PetriNetUnfolderBase]: For 6749/9227 co-relation queries the response was YES. [2023-11-29 19:32:16,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22088 conditions, 6687 events. 2446/6687 cut-off events. For 6749/9227 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 73261 event pairs, 83 based on Foata normal form. 54/6290 useless extension candidates. Maximal degree in co-relation 22015. Up to 1904 conditions per place. [2023-11-29 19:32:16,921 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 17 selfloop transitions, 6 changer transitions 435/528 dead transitions. [2023-11-29 19:32:16,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 528 transitions, 7171 flow [2023-11-29 19:32:16,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 19:32:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 19:32:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 780 transitions. [2023-11-29 19:32:16,924 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2023-11-29 19:32:16,924 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 780 transitions. [2023-11-29 19:32:16,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 780 transitions. [2023-11-29 19:32:16,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:16,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 780 transitions. [2023-11-29 19:32:16,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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 19:32:16,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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 19:32:16,928 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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 19:32:16,928 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 93 predicate places. [2023-11-29 19:32:16,928 INFO L500 AbstractCegarLoop]: Abstraction has has 176 places, 528 transitions, 7171 flow [2023-11-29 19:32:16,929 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 19:32:16,929 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:16,929 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] [2023-11-29 19:32:16,929 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:32:16,929 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:16,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:16,930 INFO L85 PathProgramCache]: Analyzing trace with hash -53485695, now seen corresponding path program 1 times [2023-11-29 19:32:16,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:16,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588803131] [2023-11-29 19:32:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:16,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:17,041 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 19:32:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:17,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588803131] [2023-11-29 19:32:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588803131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:17,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:17,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:17,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557059818] [2023-11-29 19:32:17,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:17,043 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:17,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:17,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:17,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:17,044 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:17,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 528 transitions, 7171 flow. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 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 19:32:17,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:17,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:17,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:17,742 INFO L124 PetriNetUnfolderBase]: 1712/4473 cut-off events. [2023-11-29 19:32:17,742 INFO L125 PetriNetUnfolderBase]: For 4004/6557 co-relation queries the response was YES. [2023-11-29 19:32:17,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14564 conditions, 4473 events. 1712/4473 cut-off events. For 4004/6557 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 45640 event pairs, 9 based on Foata normal form. 484/4643 useless extension candidates. Maximal degree in co-relation 14487. Up to 1451 conditions per place. [2023-11-29 19:32:17,768 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 20 selfloop transitions, 11 changer transitions 294/382 dead transitions. [2023-11-29 19:32:17,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 382 transitions, 4620 flow [2023-11-29 19:32:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1014 transitions. [2023-11-29 19:32:17,772 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2023-11-29 19:32:17,772 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1014 transitions. [2023-11-29 19:32:17,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1014 transitions. [2023-11-29 19:32:17,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:17,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1014 transitions. [2023-11-29 19:32:17,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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 19:32:17,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:17,781 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:17,782 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 96 predicate places. [2023-11-29 19:32:17,782 INFO L500 AbstractCegarLoop]: Abstraction has has 179 places, 382 transitions, 4620 flow [2023-11-29 19:32:17,783 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 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 19:32:17,783 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:17,783 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] [2023-11-29 19:32:17,783 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 19:32:17,783 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:17,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:17,784 INFO L85 PathProgramCache]: Analyzing trace with hash 457735310, now seen corresponding path program 1 times [2023-11-29 19:32:17,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:17,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116364110] [2023-11-29 19:32:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:17,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:17,936 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 19:32:17,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:17,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116364110] [2023-11-29 19:32:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116364110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:17,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:32:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952900144] [2023-11-29 19:32:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:17,941 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:32:17,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:17,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:32:17,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:32:17,943 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:17,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 382 transitions, 4620 flow. Second operand has 8 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 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 19:32:17,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:17,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:17,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:18,587 INFO L124 PetriNetUnfolderBase]: 1494/3921 cut-off events. [2023-11-29 19:32:18,588 INFO L125 PetriNetUnfolderBase]: For 3640/7087 co-relation queries the response was YES. [2023-11-29 19:32:18,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13758 conditions, 3921 events. 1494/3921 cut-off events. For 3640/7087 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 41095 event pairs, 4 based on Foata normal form. 546/4232 useless extension candidates. Maximal degree in co-relation 13677. Up to 1203 conditions per place. [2023-11-29 19:32:18,604 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 11 selfloop transitions, 12 changer transitions 177/257 dead transitions. [2023-11-29 19:32:18,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 257 transitions, 2740 flow [2023-11-29 19:32:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:32:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:32:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1232 transitions. [2023-11-29 19:32:18,606 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2023-11-29 19:32:18,607 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1232 transitions. [2023-11-29 19:32:18,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1232 transitions. [2023-11-29 19:32:18,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:18,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1232 transitions. [2023-11-29 19:32:18,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 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 19:32:18,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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 19:32:18,614 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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 19:32:18,615 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 84 predicate places. [2023-11-29 19:32:18,615 INFO L500 AbstractCegarLoop]: Abstraction has has 167 places, 257 transitions, 2740 flow [2023-11-29 19:32:18,616 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 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 19:32:18,616 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:18,616 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 19:32:18,616 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 19:32:18,616 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:32:18,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:18,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1813567617, now seen corresponding path program 1 times [2023-11-29 19:32:18,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:18,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811331953] [2023-11-29 19:32:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:18,798 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 19:32:18,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811331953] [2023-11-29 19:32:18,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811331953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:18,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:18,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:18,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2362376] [2023-11-29 19:32:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:18,800 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:18,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:18,801 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 92 [2023-11-29 19:32:18,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 257 transitions, 2740 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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 19:32:18,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:18,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 92 [2023-11-29 19:32:18,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:19,365 INFO L124 PetriNetUnfolderBase]: 1931/5087 cut-off events. [2023-11-29 19:32:19,365 INFO L125 PetriNetUnfolderBase]: For 5645/7224 co-relation queries the response was YES. [2023-11-29 19:32:19,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17909 conditions, 5087 events. 1931/5087 cut-off events. For 5645/7224 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 55610 event pairs, 0 based on Foata normal form. 43/4787 useless extension candidates. Maximal degree in co-relation 17820. Up to 1552 conditions per place. [2023-11-29 19:32:19,399 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2023-11-29 19:32:19,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 297 transitions, 3717 flow [2023-11-29 19:32:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 19:32:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 19:32:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 570 transitions. [2023-11-29 19:32:19,401 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7744565217391305 [2023-11-29 19:32:19,401 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 570 transitions. [2023-11-29 19:32:19,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 570 transitions. [2023-11-29 19:32:19,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:19,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 570 transitions. [2023-11-29 19:32:19,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.25) internal successors, (570), 8 states have internal predecessors, (570), 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 19:32:19,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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 19:32:19,404 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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 19:32:19,404 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 89 predicate places. [2023-11-29 19:32:19,405 INFO L500 AbstractCegarLoop]: Abstraction has has 172 places, 297 transitions, 3717 flow [2023-11-29 19:32:19,405 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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 19:32:19,411 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe002_tso.i_BEv2_AllErrorsAtOnce [2023-11-29 19:32:19,475 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 19:32:19,476 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 19:32:19,476 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 19:32:19,476 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 19:32:19,476 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 19:32:19,477 INFO L457 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:32:19,480 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:32:19,480 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:32:19,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:32:19 BasicIcfg [2023-11-29 19:32:19,486 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:32:19,486 INFO L158 Benchmark]: Toolchain (without parser) took 10454.47ms. Allocated memory was 360.7MB in the beginning and 784.3MB in the end (delta: 423.6MB). Free memory was 307.0MB in the beginning and 373.6MB in the end (delta: -66.6MB). Peak memory consumption was 358.9MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,487 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 360.7MB. Free memory is still 313.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:32:19,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.32ms. Allocated memory is still 360.7MB. Free memory was 307.0MB in the beginning and 286.1MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.62ms. Allocated memory is still 360.7MB. Free memory was 286.1MB in the beginning and 284.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,487 INFO L158 Benchmark]: Boogie Preprocessor took 34.68ms. Allocated memory is still 360.7MB. Free memory was 284.0MB in the beginning and 282.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,487 INFO L158 Benchmark]: RCFGBuilder took 417.90ms. Allocated memory is still 360.7MB. Free memory was 282.8MB in the beginning and 268.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,488 INFO L158 Benchmark]: TraceAbstraction took 9514.21ms. Allocated memory was 360.7MB in the beginning and 784.3MB in the end (delta: 423.6MB). Free memory was 267.3MB in the beginning and 373.6MB in the end (delta: -106.3MB). Peak memory consumption was 319.0MB. Max. memory is 16.0GB. [2023-11-29 19:32:19,489 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 360.7MB. Free memory is still 313.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 424.32ms. Allocated memory is still 360.7MB. Free memory was 307.0MB in the beginning and 286.1MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.62ms. Allocated memory is still 360.7MB. Free memory was 286.1MB in the beginning and 284.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.68ms. Allocated memory is still 360.7MB. Free memory was 284.0MB in the beginning and 282.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 417.90ms. Allocated memory is still 360.7MB. Free memory was 282.8MB in the beginning and 268.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 9514.21ms. Allocated memory was 360.7MB in the beginning and 784.3MB in the end (delta: 423.6MB). Free memory was 267.3MB in the beginning and 373.6MB in the end (delta: -106.3MB). Peak memory consumption was 319.0MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 4 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: 9.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 631 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 631 mSDsluCounter, 733 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 555 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 899 IncrementalHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 178 mSDtfsCounter, 899 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9489occurred in iteration=7, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 639 NumberOfCodeBlocks, 639 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 628 ConstructedInterpolants, 0 QuantifiedInterpolants, 2610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:32:19,509 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...