/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:04:09,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:04:10,052 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 12:04:10,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:04:10,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:04:10,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:04:10,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:04:10,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:04:10,080 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:04:10,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:04:10,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:04:10,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:04:10,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:04:10,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:04:10,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:04:10,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:04:10,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:04:10,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:04:10,087 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:04:10,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:04:10,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:04:10,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:04:10,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:04:10,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:04:10,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:04:10,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:04:10,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:04:10,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:04:10,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:04:10,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:04:10,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:04:10,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:04:10,305 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:04:10,305 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:04:10,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-10 12:04:11,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:04:11,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:04:11,659 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-10 12:04:11,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d54f030e9/ec600ee3c211465ca042aec4c3046404/FLAG0299b8c59 [2023-11-10 12:04:11,687 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d54f030e9/ec600ee3c211465ca042aec4c3046404 [2023-11-10 12:04:11,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:04:11,693 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:04:11,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:04:11,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:04:11,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:04:11,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:11" (1/1) ... [2023-11-10 12:04:11,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6a1975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:11, skipping insertion in model container [2023-11-10 12:04:11,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:11" (1/1) ... [2023-11-10 12:04:11,738 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:04:11,887 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-11-10 12:04:12,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:04:12,065 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:04:12,080 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-11-10 12:04:12,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:04:12,169 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:04:12,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12 WrapperNode [2023-11-10 12:04:12,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:04:12,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:04:12,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:04:12,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:04:12,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,212 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 143 [2023-11-10 12:04:12,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:04:12,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:04:12,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:04:12,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:04:12,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:04:12,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:04:12,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:04:12,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:04:12,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (1/1) ... [2023-11-10 12:04:12,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:04:12,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:04:12,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 12:04:12,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 12:04:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:04:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 12:04:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:04:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:04:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-10 12:04:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-10 12:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:04:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:04:12,429 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:04:12,529 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:04:12,530 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:04:12,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:04:12,717 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:04:12,717 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 12:04:12,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:12 BoogieIcfgContainer [2023-11-10 12:04:12,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:04:12,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:04:12,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:04:12,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:04:12,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:04:11" (1/3) ... [2023-11-10 12:04:12,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58034588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:12, skipping insertion in model container [2023-11-10 12:04:12,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:12" (2/3) ... [2023-11-10 12:04:12,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58034588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:12, skipping insertion in model container [2023-11-10 12:04:12,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:12" (3/3) ... [2023-11-10 12:04:12,726 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-10 12:04:12,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:04:12,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-10 12:04:12,739 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:04:12,812 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 12:04:12,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 184 transitions, 372 flow [2023-11-10 12:04:12,907 INFO L124 PetriNetUnfolderBase]: 8/187 cut-off events. [2023-11-10 12:04:12,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:04:12,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 187 events. 8/187 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 167 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-11-10 12:04:12,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 184 transitions, 372 flow [2023-11-10 12:04:12,921 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 182 transitions, 367 flow [2023-11-10 12:04:12,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:04:12,946 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53d4969c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:04:12,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 12:04:12,970 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:04:12,970 INFO L124 PetriNetUnfolderBase]: 2/99 cut-off events. [2023-11-10 12:04:12,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:04:12,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:12,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:12,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:12,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:12,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1203395232, now seen corresponding path program 1 times [2023-11-10 12:04:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:12,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046392169] [2023-11-10 12:04:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:12,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:13,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046392169] [2023-11-10 12:04:13,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046392169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:13,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:13,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:13,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827551598] [2023-11-10 12:04:13,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:13,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:13,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 184 [2023-11-10 12:04:13,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 182 transitions, 367 flow. Second operand has 8 states, 8 states have (on average 141.5) internal successors, (1132), 8 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:13,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:13,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 184 [2023-11-10 12:04:13,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:14,076 INFO L124 PetriNetUnfolderBase]: 128/1455 cut-off events. [2023-11-10 12:04:14,076 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 12:04:14,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1769 conditions, 1455 events. 128/1455 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10426 event pairs, 42 based on Foata normal form. 117/1482 useless extension candidates. Maximal degree in co-relation 1719. Up to 134 conditions per place. [2023-11-10 12:04:14,085 INFO L140 encePairwiseOnDemand]: 161/184 looper letters, 68 selfloop transitions, 38 changer transitions 18/258 dead transitions. [2023-11-10 12:04:14,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 258 transitions, 759 flow [2023-11-10 12:04:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 12:04:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 12:04:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2814 transitions. [2023-11-10 12:04:14,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8049199084668193 [2023-11-10 12:04:14,102 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2814 transitions. [2023-11-10 12:04:14,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2814 transitions. [2023-11-10 12:04:14,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:14,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2814 transitions. [2023-11-10 12:04:14,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 148.10526315789474) internal successors, (2814), 19 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,125 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,126 INFO L175 Difference]: Start difference. First operand has 178 places, 182 transitions, 367 flow. Second operand 19 states and 2814 transitions. [2023-11-10 12:04:14,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 258 transitions, 759 flow [2023-11-10 12:04:14,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 258 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 12:04:14,133 INFO L231 Difference]: Finished difference. Result has 197 places, 197 transitions, 514 flow [2023-11-10 12:04:14,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=514, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2023-11-10 12:04:14,138 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 19 predicate places. [2023-11-10 12:04:14,138 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 514 flow [2023-11-10 12:04:14,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 141.5) internal successors, (1132), 8 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:14,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:14,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:04:14,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:14,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:14,140 INFO L85 PathProgramCache]: Analyzing trace with hash 863281893, now seen corresponding path program 1 times [2023-11-10 12:04:14,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:14,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655895310] [2023-11-10 12:04:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:14,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:14,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:14,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655895310] [2023-11-10 12:04:14,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655895310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:14,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 12:04:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659320876] [2023-11-10 12:04:14,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:14,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 12:04:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:14,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 12:04:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-10 12:04:14,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 184 [2023-11-10 12:04:14,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 197 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:14,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 184 [2023-11-10 12:04:14,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:14,515 INFO L124 PetriNetUnfolderBase]: 25/488 cut-off events. [2023-11-10 12:04:14,515 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-10 12:04:14,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 488 events. 25/488 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1957 event pairs, 11 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 658. Up to 55 conditions per place. [2023-11-10 12:04:14,518 INFO L140 encePairwiseOnDemand]: 175/184 looper letters, 23 selfloop transitions, 9 changer transitions 2/182 dead transitions. [2023-11-10 12:04:14,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 182 transitions, 495 flow [2023-11-10 12:04:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 12:04:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 12:04:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 770 transitions. [2023-11-10 12:04:14,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2023-11-10 12:04:14,520 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 770 transitions. [2023-11-10 12:04:14,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 770 transitions. [2023-11-10 12:04:14,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:14,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 770 transitions. [2023-11-10 12:04:14,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,524 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,524 INFO L175 Difference]: Start difference. First operand has 197 places, 197 transitions, 514 flow. Second operand 5 states and 770 transitions. [2023-11-10 12:04:14,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 182 transitions, 495 flow [2023-11-10 12:04:14,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 182 transitions, 489 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-10 12:04:14,530 INFO L231 Difference]: Finished difference. Result has 185 places, 175 transitions, 440 flow [2023-11-10 12:04:14,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=440, PETRI_PLACES=185, PETRI_TRANSITIONS=175} [2023-11-10 12:04:14,531 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 7 predicate places. [2023-11-10 12:04:14,532 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 175 transitions, 440 flow [2023-11-10 12:04:14,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:14,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:14,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 12:04:14,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:14,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash -890644218, now seen corresponding path program 1 times [2023-11-10 12:04:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:14,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570269275] [2023-11-10 12:04:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:14,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:14,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:14,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570269275] [2023-11-10 12:04:14,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570269275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:14,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:14,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:14,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609784241] [2023-11-10 12:04:14,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:14,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:14,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:14,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:14,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 184 [2023-11-10 12:04:14,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 175 transitions, 440 flow. Second operand has 8 states, 8 states have (on average 142.25) internal successors, (1138), 8 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:14,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 184 [2023-11-10 12:04:14,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:14,938 INFO L124 PetriNetUnfolderBase]: 32/744 cut-off events. [2023-11-10 12:04:14,938 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-10 12:04:14,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 744 events. 32/744 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3392 event pairs, 7 based on Foata normal form. 1/722 useless extension candidates. Maximal degree in co-relation 994. Up to 80 conditions per place. [2023-11-10 12:04:14,941 INFO L140 encePairwiseOnDemand]: 167/184 looper letters, 46 selfloop transitions, 19 changer transitions 0/199 dead transitions. [2023-11-10 12:04:14,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 199 transitions, 618 flow [2023-11-10 12:04:14,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 12:04:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 12:04:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1606 transitions. [2023-11-10 12:04:14,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7934782608695652 [2023-11-10 12:04:14,945 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1606 transitions. [2023-11-10 12:04:14,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1606 transitions. [2023-11-10 12:04:14,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:14,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1606 transitions. [2023-11-10 12:04:14,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 146.0) internal successors, (1606), 11 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,951 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 184.0) internal successors, (2208), 12 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,951 INFO L175 Difference]: Start difference. First operand has 185 places, 175 transitions, 440 flow. Second operand 11 states and 1606 transitions. [2023-11-10 12:04:14,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 199 transitions, 618 flow [2023-11-10 12:04:14,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 199 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 12:04:14,956 INFO L231 Difference]: Finished difference. Result has 194 places, 178 transitions, 507 flow [2023-11-10 12:04:14,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=507, PETRI_PLACES=194, PETRI_TRANSITIONS=178} [2023-11-10 12:04:14,957 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 16 predicate places. [2023-11-10 12:04:14,957 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 178 transitions, 507 flow [2023-11-10 12:04:14,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.25) internal successors, (1138), 8 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:14,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:14,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:14,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 12:04:14,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:14,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:14,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1966805796, now seen corresponding path program 1 times [2023-11-10 12:04:14,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:14,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121679225] [2023-11-10 12:04:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:15,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:15,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121679225] [2023-11-10 12:04:15,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121679225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:15,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:15,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-10 12:04:15,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811572866] [2023-11-10 12:04:15,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:15,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-10 12:04:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-10 12:04:15,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-10 12:04:15,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 184 [2023-11-10 12:04:15,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 178 transitions, 507 flow. Second operand has 13 states, 13 states have (on average 124.3076923076923) internal successors, (1616), 13 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:15,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 184 [2023-11-10 12:04:15,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:15,688 INFO L124 PetriNetUnfolderBase]: 185/1006 cut-off events. [2023-11-10 12:04:15,688 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-11-10 12:04:15,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1771 conditions, 1006 events. 185/1006 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5954 event pairs, 9 based on Foata normal form. 1/966 useless extension candidates. Maximal degree in co-relation 1706. Up to 86 conditions per place. [2023-11-10 12:04:15,694 INFO L140 encePairwiseOnDemand]: 162/184 looper letters, 171 selfloop transitions, 37 changer transitions 0/325 dead transitions. [2023-11-10 12:04:15,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 325 transitions, 1295 flow [2023-11-10 12:04:15,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 12:04:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 12:04:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3135 transitions. [2023-11-10 12:04:15,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7099184782608695 [2023-11-10 12:04:15,701 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3135 transitions. [2023-11-10 12:04:15,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3135 transitions. [2023-11-10 12:04:15,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:15,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3135 transitions. [2023-11-10 12:04:15,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 130.625) internal successors, (3135), 24 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 184.0) internal successors, (4600), 25 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,715 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 184.0) internal successors, (4600), 25 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,716 INFO L175 Difference]: Start difference. First operand has 194 places, 178 transitions, 507 flow. Second operand 24 states and 3135 transitions. [2023-11-10 12:04:15,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 325 transitions, 1295 flow [2023-11-10 12:04:15,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 325 transitions, 1256 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-10 12:04:15,725 INFO L231 Difference]: Finished difference. Result has 215 places, 194 transitions, 655 flow [2023-11-10 12:04:15,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=655, PETRI_PLACES=215, PETRI_TRANSITIONS=194} [2023-11-10 12:04:15,726 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 37 predicate places. [2023-11-10 12:04:15,726 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 194 transitions, 655 flow [2023-11-10 12:04:15,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.3076923076923) internal successors, (1616), 13 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:15,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:15,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 12:04:15,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:15,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1813692795, now seen corresponding path program 1 times [2023-11-10 12:04:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031910591] [2023-11-10 12:04:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031910591] [2023-11-10 12:04:15,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031910591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:15,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:15,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:15,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444542200] [2023-11-10 12:04:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:15,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:15,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:15,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:15,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 184 [2023-11-10 12:04:15,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 194 transitions, 655 flow. Second operand has 8 states, 8 states have (on average 136.375) internal successors, (1091), 8 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:15,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:15,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 184 [2023-11-10 12:04:15,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:16,139 INFO L124 PetriNetUnfolderBase]: 89/865 cut-off events. [2023-11-10 12:04:16,139 INFO L125 PetriNetUnfolderBase]: For 219/237 co-relation queries the response was YES. [2023-11-10 12:04:16,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1600 conditions, 865 events. 89/865 cut-off events. For 219/237 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4675 event pairs, 9 based on Foata normal form. 8/844 useless extension candidates. Maximal degree in co-relation 1532. Up to 72 conditions per place. [2023-11-10 12:04:16,143 INFO L140 encePairwiseOnDemand]: 171/184 looper letters, 86 selfloop transitions, 36 changer transitions 0/250 dead transitions. [2023-11-10 12:04:16,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 250 transitions, 1053 flow [2023-11-10 12:04:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-10 12:04:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-10 12:04:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2397 transitions. [2023-11-10 12:04:16,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7663043478260869 [2023-11-10 12:04:16,148 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2397 transitions. [2023-11-10 12:04:16,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2397 transitions. [2023-11-10 12:04:16,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:16,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2397 transitions. [2023-11-10 12:04:16,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 141.0) internal successors, (2397), 17 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:16,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 184.0) internal successors, (3312), 18 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:16,157 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 184.0) internal successors, (3312), 18 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:16,157 INFO L175 Difference]: Start difference. First operand has 215 places, 194 transitions, 655 flow. Second operand 17 states and 2397 transitions. [2023-11-10 12:04:16,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 250 transitions, 1053 flow [2023-11-10 12:04:16,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 250 transitions, 1018 flow, removed 5 selfloop flow, removed 11 redundant places. [2023-11-10 12:04:16,168 INFO L231 Difference]: Finished difference. Result has 218 places, 202 transitions, 734 flow [2023-11-10 12:04:16,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=734, PETRI_PLACES=218, PETRI_TRANSITIONS=202} [2023-11-10 12:04:16,170 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 40 predicate places. [2023-11-10 12:04:16,170 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 202 transitions, 734 flow [2023-11-10 12:04:16,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 136.375) internal successors, (1091), 8 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:16,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:16,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:16,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 12:04:16,172 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:16,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:16,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1450417286, now seen corresponding path program 1 times [2023-11-10 12:04:16,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:16,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303366832] [2023-11-10 12:04:16,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:16,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303366832] [2023-11-10 12:04:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303366832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-10 12:04:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239079246] [2023-11-10 12:04:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:16,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-10 12:04:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-10 12:04:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-10 12:04:16,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 184 [2023-11-10 12:04:16,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 202 transitions, 734 flow. Second operand has 13 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:16,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:16,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 184 [2023-11-10 12:04:16,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:17,068 INFO L124 PetriNetUnfolderBase]: 169/1418 cut-off events. [2023-11-10 12:04:17,068 INFO L125 PetriNetUnfolderBase]: For 493/493 co-relation queries the response was YES. [2023-11-10 12:04:17,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2570 conditions, 1418 events. 169/1418 cut-off events. For 493/493 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 9596 event pairs, 67 based on Foata normal form. 7/1373 useless extension candidates. Maximal degree in co-relation 2506. Up to 259 conditions per place. [2023-11-10 12:04:17,073 INFO L140 encePairwiseOnDemand]: 162/184 looper letters, 86 selfloop transitions, 54 changer transitions 36/308 dead transitions. [2023-11-10 12:04:17,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 308 transitions, 1410 flow [2023-11-10 12:04:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-10 12:04:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-10 12:04:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5117 transitions. [2023-11-10 12:04:17,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7130713489409142 [2023-11-10 12:04:17,081 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5117 transitions. [2023-11-10 12:04:17,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5117 transitions. [2023-11-10 12:04:17,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:17,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5117 transitions. [2023-11-10 12:04:17,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 131.2051282051282) internal successors, (5117), 39 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 184.0) internal successors, (7360), 40 states have internal predecessors, (7360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,099 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 184.0) internal successors, (7360), 40 states have internal predecessors, (7360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,099 INFO L175 Difference]: Start difference. First operand has 218 places, 202 transitions, 734 flow. Second operand 39 states and 5117 transitions. [2023-11-10 12:04:17,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 308 transitions, 1410 flow [2023-11-10 12:04:17,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 308 transitions, 1298 flow, removed 20 selfloop flow, removed 10 redundant places. [2023-11-10 12:04:17,105 INFO L231 Difference]: Finished difference. Result has 262 places, 236 transitions, 954 flow [2023-11-10 12:04:17,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=954, PETRI_PLACES=262, PETRI_TRANSITIONS=236} [2023-11-10 12:04:17,106 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 84 predicate places. [2023-11-10 12:04:17,106 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 236 transitions, 954 flow [2023-11-10 12:04:17,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:17,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:17,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 12:04:17,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:17,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1764902572, now seen corresponding path program 1 times [2023-11-10 12:04:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033814822] [2023-11-10 12:04:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:17,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033814822] [2023-11-10 12:04:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033814822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:17,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:17,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8142717] [2023-11-10 12:04:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:17,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:17,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:17,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 184 [2023-11-10 12:04:17,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 236 transitions, 954 flow. Second operand has 8 states, 8 states have (on average 144.125) internal successors, (1153), 8 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:17,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 184 [2023-11-10 12:04:17,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:17,500 INFO L124 PetriNetUnfolderBase]: 62/763 cut-off events. [2023-11-10 12:04:17,500 INFO L125 PetriNetUnfolderBase]: For 567/588 co-relation queries the response was YES. [2023-11-10 12:04:17,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1545 conditions, 763 events. 62/763 cut-off events. For 567/588 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4017 event pairs, 11 based on Foata normal form. 4/738 useless extension candidates. Maximal degree in co-relation 1472. Up to 54 conditions per place. [2023-11-10 12:04:17,504 INFO L140 encePairwiseOnDemand]: 177/184 looper letters, 28 selfloop transitions, 9 changer transitions 7/236 dead transitions. [2023-11-10 12:04:17,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 236 transitions, 1009 flow [2023-11-10 12:04:17,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 12:04:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 12:04:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 883 transitions. [2023-11-10 12:04:17,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7998188405797102 [2023-11-10 12:04:17,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 883 transitions. [2023-11-10 12:04:17,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 883 transitions. [2023-11-10 12:04:17,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:17,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 883 transitions. [2023-11-10 12:04:17,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 147.16666666666666) internal successors, (883), 6 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 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) [2023-11-10 12:04:17,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 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) [2023-11-10 12:04:17,543 INFO L175 Difference]: Start difference. First operand has 262 places, 236 transitions, 954 flow. Second operand 6 states and 883 transitions. [2023-11-10 12:04:17,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 236 transitions, 1009 flow [2023-11-10 12:04:17,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 236 transitions, 938 flow, removed 13 selfloop flow, removed 14 redundant places. [2023-11-10 12:04:17,549 INFO L231 Difference]: Finished difference. Result has 238 places, 225 transitions, 837 flow [2023-11-10 12:04:17,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=837, PETRI_PLACES=238, PETRI_TRANSITIONS=225} [2023-11-10 12:04:17,550 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 60 predicate places. [2023-11-10 12:04:17,550 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 225 transitions, 837 flow [2023-11-10 12:04:17,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.125) internal successors, (1153), 8 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:17,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:17,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 12:04:17,551 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:17,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash -904632342, now seen corresponding path program 1 times [2023-11-10 12:04:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:17,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682016765] [2023-11-10 12:04:17,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:17,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:17,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:17,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682016765] [2023-11-10 12:04:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682016765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:17,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:17,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:17,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371435260] [2023-11-10 12:04:17,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:17,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:17,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:17,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:17,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 184 [2023-11-10 12:04:17,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 225 transitions, 837 flow. Second operand has 8 states, 8 states have (on average 137.125) internal successors, (1097), 8 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:17,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 184 [2023-11-10 12:04:17,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:17,934 INFO L124 PetriNetUnfolderBase]: 97/868 cut-off events. [2023-11-10 12:04:17,934 INFO L125 PetriNetUnfolderBase]: For 630/765 co-relation queries the response was YES. [2023-11-10 12:04:17,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 868 events. 97/868 cut-off events. For 630/765 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4630 event pairs, 12 based on Foata normal form. 48/873 useless extension candidates. Maximal degree in co-relation 1709. Up to 70 conditions per place. [2023-11-10 12:04:17,938 INFO L140 encePairwiseOnDemand]: 168/184 looper letters, 69 selfloop transitions, 46 changer transitions 0/264 dead transitions. [2023-11-10 12:04:17,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 264 transitions, 1193 flow [2023-11-10 12:04:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-10 12:04:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-10 12:04:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1977 transitions. [2023-11-10 12:04:17,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7674689440993789 [2023-11-10 12:04:17,941 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1977 transitions. [2023-11-10 12:04:17,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1977 transitions. [2023-11-10 12:04:17,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:17,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1977 transitions. [2023-11-10 12:04:17,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 141.21428571428572) internal successors, (1977), 14 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,946 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 184.0) internal successors, (2760), 15 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,946 INFO L175 Difference]: Start difference. First operand has 238 places, 225 transitions, 837 flow. Second operand 14 states and 1977 transitions. [2023-11-10 12:04:17,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 264 transitions, 1193 flow [2023-11-10 12:04:17,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 264 transitions, 1163 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-10 12:04:17,952 INFO L231 Difference]: Finished difference. Result has 237 places, 228 transitions, 917 flow [2023-11-10 12:04:17,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=237, PETRI_TRANSITIONS=228} [2023-11-10 12:04:17,953 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 59 predicate places. [2023-11-10 12:04:17,953 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 228 transitions, 917 flow [2023-11-10 12:04:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 137.125) internal successors, (1097), 8 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:17,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:17,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:17,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 12:04:17,954 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:17,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1852559088, now seen corresponding path program 1 times [2023-11-10 12:04:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:17,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782609274] [2023-11-10 12:04:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:18,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:18,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782609274] [2023-11-10 12:04:18,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782609274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:18,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 12:04:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116152641] [2023-11-10 12:04:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:18,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 12:04:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 12:04:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-10 12:04:18,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 184 [2023-11-10 12:04:18,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 228 transitions, 917 flow. Second operand has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:18,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 184 [2023-11-10 12:04:18,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:18,230 INFO L124 PetriNetUnfolderBase]: 61/550 cut-off events. [2023-11-10 12:04:18,230 INFO L125 PetriNetUnfolderBase]: For 372/429 co-relation queries the response was YES. [2023-11-10 12:04:18,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 550 events. 61/550 cut-off events. For 372/429 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2312 event pairs, 7 based on Foata normal form. 5/541 useless extension candidates. Maximal degree in co-relation 1110. Up to 52 conditions per place. [2023-11-10 12:04:18,233 INFO L140 encePairwiseOnDemand]: 176/184 looper letters, 25 selfloop transitions, 8 changer transitions 24/208 dead transitions. [2023-11-10 12:04:18,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 208 transitions, 822 flow [2023-11-10 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 12:04:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 12:04:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 768 transitions. [2023-11-10 12:04:18,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8347826086956521 [2023-11-10 12:04:18,235 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 768 transitions. [2023-11-10 12:04:18,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 768 transitions. [2023-11-10 12:04:18,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:18,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 768 transitions. [2023-11-10 12:04:18,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,237 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,237 INFO L175 Difference]: Start difference. First operand has 237 places, 228 transitions, 917 flow. Second operand 5 states and 768 transitions. [2023-11-10 12:04:18,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 208 transitions, 822 flow [2023-11-10 12:04:18,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 208 transitions, 747 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-11-10 12:04:18,258 INFO L231 Difference]: Finished difference. Result has 214 places, 179 transitions, 583 flow [2023-11-10 12:04:18,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=583, PETRI_PLACES=214, PETRI_TRANSITIONS=179} [2023-11-10 12:04:18,259 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 36 predicate places. [2023-11-10 12:04:18,259 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 179 transitions, 583 flow [2023-11-10 12:04:18,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:18,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:18,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 12:04:18,260 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:18,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash -427065902, now seen corresponding path program 1 times [2023-11-10 12:04:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055589062] [2023-11-10 12:04:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055589062] [2023-11-10 12:04:18,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055589062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:18,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:18,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-10 12:04:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292974023] [2023-11-10 12:04:18,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:18,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-10 12:04:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:18,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-10 12:04:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-10 12:04:18,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 184 [2023-11-10 12:04:18,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 179 transitions, 583 flow. Second operand has 11 states, 11 states have (on average 132.45454545454547) internal successors, (1457), 11 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:18,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 184 [2023-11-10 12:04:18,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:18,677 INFO L124 PetriNetUnfolderBase]: 87/553 cut-off events. [2023-11-10 12:04:18,677 INFO L125 PetriNetUnfolderBase]: For 670/674 co-relation queries the response was YES. [2023-11-10 12:04:18,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 553 events. 87/553 cut-off events. For 670/674 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2513 event pairs, 28 based on Foata normal form. 10/557 useless extension candidates. Maximal degree in co-relation 1374. Up to 131 conditions per place. [2023-11-10 12:04:18,679 INFO L140 encePairwiseOnDemand]: 166/184 looper letters, 26 selfloop transitions, 16 changer transitions 39/200 dead transitions. [2023-11-10 12:04:18,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 200 transitions, 885 flow [2023-11-10 12:04:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 12:04:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 12:04:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2513 transitions. [2023-11-10 12:04:18,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7188215102974829 [2023-11-10 12:04:18,682 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2513 transitions. [2023-11-10 12:04:18,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2513 transitions. [2023-11-10 12:04:18,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:18,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2513 transitions. [2023-11-10 12:04:18,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 132.26315789473685) internal successors, (2513), 19 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,688 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,688 INFO L175 Difference]: Start difference. First operand has 214 places, 179 transitions, 583 flow. Second operand 19 states and 2513 transitions. [2023-11-10 12:04:18,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 200 transitions, 885 flow [2023-11-10 12:04:18,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 200 transitions, 818 flow, removed 26 selfloop flow, removed 5 redundant places. [2023-11-10 12:04:18,693 INFO L231 Difference]: Finished difference. Result has 214 places, 161 transitions, 497 flow [2023-11-10 12:04:18,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=497, PETRI_PLACES=214, PETRI_TRANSITIONS=161} [2023-11-10 12:04:18,694 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 36 predicate places. [2023-11-10 12:04:18,694 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 161 transitions, 497 flow [2023-11-10 12:04:18,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.45454545454547) internal successors, (1457), 11 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:04:18,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:18,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 12:04:18,695 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-10 12:04:18,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:04:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -197805111, now seen corresponding path program 1 times [2023-11-10 12:04:18,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:04:18,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653889616] [2023-11-10 12:04:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:04:18,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:04:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:04:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:04:18,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:04:18,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653889616] [2023-11-10 12:04:18,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653889616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:04:18,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:04:18,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:04:18,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652068696] [2023-11-10 12:04:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:04:18,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:04:18,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:04:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:04:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:04:18,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 184 [2023-11-10 12:04:18,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 161 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 144.75) internal successors, (1158), 8 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:18,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:04:18,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 184 [2023-11-10 12:04:18,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:04:19,073 INFO L124 PetriNetUnfolderBase]: 8/187 cut-off events. [2023-11-10 12:04:19,073 INFO L125 PetriNetUnfolderBase]: For 118/119 co-relation queries the response was YES. [2023-11-10 12:04:19,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 187 events. 8/187 cut-off events. For 118/119 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 182 event pairs, 0 based on Foata normal form. 7/192 useless extension candidates. Maximal degree in co-relation 349. Up to 25 conditions per place. [2023-11-10 12:04:19,074 INFO L140 encePairwiseOnDemand]: 179/184 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-11-10 12:04:19,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 150 transitions, 529 flow [2023-11-10 12:04:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 12:04:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 12:04:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 884 transitions. [2023-11-10 12:04:19,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8007246376811594 [2023-11-10 12:04:19,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 884 transitions. [2023-11-10 12:04:19,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 884 transitions. [2023-11-10 12:04:19,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:04:19,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 884 transitions. [2023-11-10 12:04:19,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:19,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 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) [2023-11-10 12:04:19,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 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) [2023-11-10 12:04:19,078 INFO L175 Difference]: Start difference. First operand has 214 places, 161 transitions, 497 flow. Second operand 6 states and 884 transitions. [2023-11-10 12:04:19,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 150 transitions, 529 flow [2023-11-10 12:04:19,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 150 transitions, 440 flow, removed 4 selfloop flow, removed 24 redundant places. [2023-11-10 12:04:19,080 INFO L231 Difference]: Finished difference. Result has 164 places, 0 transitions, 0 flow [2023-11-10 12:04:19,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=164, PETRI_TRANSITIONS=0} [2023-11-10 12:04:19,081 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, -14 predicate places. [2023-11-10 12:04:19,081 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 0 transitions, 0 flow [2023-11-10 12:04:19,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.75) internal successors, (1158), 8 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:04:19,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-10 12:04:19,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-10 12:04:19,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-10 12:04:19,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-11-10 12:04:19,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-11-10 12:04:19,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-10 12:04:19,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-10 12:04:19,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-10 12:04:19,085 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:04:19,088 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 12:04:19,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 12:04:19,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:04:19 BasicIcfg [2023-11-10 12:04:19,095 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 12:04:19,095 INFO L158 Benchmark]: Toolchain (without parser) took 7402.17ms. Allocated memory was 268.4MB in the beginning and 460.3MB in the end (delta: 191.9MB). Free memory was 215.4MB in the beginning and 404.0MB in the end (delta: -188.6MB). Peak memory consumption was 3.6MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,095 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 151.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:04:19,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.13ms. Allocated memory is still 268.4MB. Free memory was 215.1MB in the beginning and 195.0MB in the end (delta: 20.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.10ms. Allocated memory is still 268.4MB. Free memory was 195.0MB in the beginning and 192.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,096 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 268.4MB. Free memory was 192.6MB in the beginning and 191.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,098 INFO L158 Benchmark]: RCFGBuilder took 471.91ms. Allocated memory is still 268.4MB. Free memory was 191.0MB in the beginning and 219.1MB in the end (delta: -28.1MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,098 INFO L158 Benchmark]: TraceAbstraction took 6372.97ms. Allocated memory was 268.4MB in the beginning and 460.3MB in the end (delta: 191.9MB). Free memory was 218.1MB in the beginning and 404.0MB in the end (delta: -185.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2023-11-10 12:04:19,099 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 199.2MB. Free memory is still 151.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 476.13ms. Allocated memory is still 268.4MB. Free memory was 215.1MB in the beginning and 195.0MB in the end (delta: 20.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.10ms. Allocated memory is still 268.4MB. Free memory was 195.0MB in the beginning and 192.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 268.4MB. Free memory was 192.6MB in the beginning and 191.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 471.91ms. Allocated memory is still 268.4MB. Free memory was 191.0MB in the beginning and 219.1MB in the end (delta: -28.1MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * TraceAbstraction took 6372.97ms. Allocated memory was 268.4MB in the beginning and 460.3MB in the end (delta: 191.9MB). Free memory was 218.1MB in the beginning and 404.0MB in the end (delta: -185.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 259 locations, 7 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: 6.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1231 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1231 mSDsluCounter, 2605 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2206 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1578 IncrementalHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 399 mSDtfsCounter, 1578 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=954occurred in iteration=6, InterpolantAutomatonStates: 165, 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, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1156 NumberOfCodeBlocks, 1156 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1145 ConstructedInterpolants, 0 QuantifiedInterpolants, 5636 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 12:04:19,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...