/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:54:33,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:54:33,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:54:33,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:54:33,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:54:33,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:54:33,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:54:33,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:54:33,705 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:54:33,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:54:33,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:54:33,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:54:33,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:54:33,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:54:33,710 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:54:33,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:54:33,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:54:33,711 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:54:33,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:54:33,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:33,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:54:33,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:54:33,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:54:33,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:54:33,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:54:33,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:54:33,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:54:33,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:54:33,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:54:33,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:54:33,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:54:33,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:54:33,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:54:33,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-10 11:54:34,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:54:35,148 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:54:35,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-10 11:54:35,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e3039a8/4be1e74217a747dab26a40f0fd59f33e/FLAG67226a771 [2023-11-10 11:54:35,169 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e3039a8/4be1e74217a747dab26a40f0fd59f33e [2023-11-10 11:54:35,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:54:35,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:54:35,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:35,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:54:35,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:54:35,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3a73f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35, skipping insertion in model container [2023-11-10 11:54:35,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,213 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:54:35,344 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2023-11-10 11:54:35,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:35,485 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:54:35,493 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2023-11-10 11:54:35,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:35,551 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:54:35,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35 WrapperNode [2023-11-10 11:54:35,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:35,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:35,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:54:35,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:54:35,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,604 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2023-11-10 11:54:35,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:35,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:54:35,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:54:35,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:54:35,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:54:35,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:54:35,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:54:35,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:54:35,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (1/1) ... [2023-11-10 11:54:35,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:35,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:35,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 11:54:35,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 11:54:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:54:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-10 11:54:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-10 11:54:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:54:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:54:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:54:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:54:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:54:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:54:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:54:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:54:35,833 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:54:35,949 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:54:35,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:54:36,139 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:54:36,168 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:54:36,168 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:54:36,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:36 BoogieIcfgContainer [2023-11-10 11:54:36,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:54:36,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:54:36,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:54:36,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:54:36,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:54:35" (1/3) ... [2023-11-10 11:54:36,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fe5152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:36, skipping insertion in model container [2023-11-10 11:54:36,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:35" (2/3) ... [2023-11-10 11:54:36,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fe5152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:36, skipping insertion in model container [2023-11-10 11:54:36,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:36" (3/3) ... [2023-11-10 11:54:36,176 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2023-11-10 11:54:36,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:54:36,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-10 11:54:36,191 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:54:36,253 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-10 11:54:36,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 107 transitions, 221 flow [2023-11-10 11:54:36,334 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2023-11-10 11:54:36,334 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:54:36,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-10 11:54:36,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 107 transitions, 221 flow [2023-11-10 11:54:36,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 89 transitions, 181 flow [2023-11-10 11:54:36,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:54:36,356 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;@40c4147a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:54:36,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-10 11:54:36,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:54:36,374 INFO L124 PetriNetUnfolderBase]: 0/58 cut-off events. [2023-11-10 11:54:36,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:36,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:36,375 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] [2023-11-10 11:54:36,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:36,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:36,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1705985163, now seen corresponding path program 1 times [2023-11-10 11:54:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:36,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076548246] [2023-11-10 11:54:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:36,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:36,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076548246] [2023-11-10 11:54:36,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076548246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:36,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:36,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:36,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546622979] [2023-11-10 11:54:36,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:36,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:36,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:36,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2023-11-10 11:54:36,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:36,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:36,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2023-11-10 11:54:36,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:36,923 INFO L124 PetriNetUnfolderBase]: 80/408 cut-off events. [2023-11-10 11:54:36,923 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:54:36,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 408 events. 80/408 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2004 event pairs, 21 based on Foata normal form. 8/408 useless extension candidates. Maximal degree in co-relation 560. Up to 98 conditions per place. [2023-11-10 11:54:36,927 INFO L140 encePairwiseOnDemand]: 95/107 looper letters, 40 selfloop transitions, 18 changer transitions 0/119 dead transitions. [2023-11-10 11:54:36,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 119 transitions, 357 flow [2023-11-10 11:54:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:54:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:54:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 720 transitions. [2023-11-10 11:54:36,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7476635514018691 [2023-11-10 11:54:36,941 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 720 transitions. [2023-11-10 11:54:36,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 720 transitions. [2023-11-10 11:54:36,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:36,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 720 transitions. [2023-11-10 11:54:36,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 80.0) internal successors, (720), 9 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:36,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:36,958 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:36,960 INFO L175 Difference]: Start difference. First operand has 91 places, 89 transitions, 181 flow. Second operand 9 states and 720 transitions. [2023-11-10 11:54:36,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 119 transitions, 357 flow [2023-11-10 11:54:36,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 119 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:54:36,969 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 265 flow [2023-11-10 11:54:36,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=265, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2023-11-10 11:54:36,972 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2023-11-10 11:54:36,973 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 265 flow [2023-11-10 11:54:36,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:36,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:36,973 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] [2023-11-10 11:54:36,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:54:36,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:36,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1656787341, now seen corresponding path program 1 times [2023-11-10 11:54:36,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:36,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716285844] [2023-11-10 11:54:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:36,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:37,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:37,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716285844] [2023-11-10 11:54:37,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716285844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:37,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:37,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802495556] [2023-11-10 11:54:37,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:37,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:37,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:37,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:37,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2023-11-10 11:54:37,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 265 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:37,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2023-11-10 11:54:37,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:37,233 INFO L124 PetriNetUnfolderBase]: 88/430 cut-off events. [2023-11-10 11:54:37,233 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-10 11:54:37,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 430 events. 88/430 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2183 event pairs, 30 based on Foata normal form. 5/432 useless extension candidates. Maximal degree in co-relation 710. Up to 117 conditions per place. [2023-11-10 11:54:37,240 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 41 selfloop transitions, 23 changer transitions 0/125 dead transitions. [2023-11-10 11:54:37,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 467 flow [2023-11-10 11:54:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:54:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:54:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 716 transitions. [2023-11-10 11:54:37,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7435098650051921 [2023-11-10 11:54:37,245 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 716 transitions. [2023-11-10 11:54:37,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 716 transitions. [2023-11-10 11:54:37,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:37,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 716 transitions. [2023-11-10 11:54:37,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.55555555555556) internal successors, (716), 9 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,249 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,249 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 265 flow. Second operand 9 states and 716 transitions. [2023-11-10 11:54:37,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 467 flow [2023-11-10 11:54:37,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 125 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:54:37,255 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 392 flow [2023-11-10 11:54:37,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=392, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2023-11-10 11:54:37,256 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 21 predicate places. [2023-11-10 11:54:37,256 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 392 flow [2023-11-10 11:54:37,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:37,257 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] [2023-11-10 11:54:37,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:54:37,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:37,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1154250341, now seen corresponding path program 1 times [2023-11-10 11:54:37,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:37,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371437713] [2023-11-10 11:54:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:37,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371437713] [2023-11-10 11:54:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371437713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:54:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269896284] [2023-11-10 11:54:37,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:37,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:54:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:37,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:54:37,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:54:37,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-10 11:54:37,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 392 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:37,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-10 11:54:37,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:37,725 INFO L124 PetriNetUnfolderBase]: 116/526 cut-off events. [2023-11-10 11:54:37,726 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-11-10 11:54:37,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 526 events. 116/526 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2842 event pairs, 0 based on Foata normal form. 10/534 useless extension candidates. Maximal degree in co-relation 1016. Up to 50 conditions per place. [2023-11-10 11:54:37,728 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 60 selfloop transitions, 72 changer transitions 14/206 dead transitions. [2023-11-10 11:54:37,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 206 transitions, 1096 flow [2023-11-10 11:54:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:54:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:54:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1504 transitions. [2023-11-10 11:54:37,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7397934087555337 [2023-11-10 11:54:37,731 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1504 transitions. [2023-11-10 11:54:37,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1504 transitions. [2023-11-10 11:54:37,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:37,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1504 transitions. [2023-11-10 11:54:37,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 79.15789473684211) internal successors, (1504), 19 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,737 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,737 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 392 flow. Second operand 19 states and 1504 transitions. [2023-11-10 11:54:37,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 206 transitions, 1096 flow [2023-11-10 11:54:37,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 206 transitions, 1092 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-10 11:54:37,746 INFO L231 Difference]: Finished difference. Result has 143 places, 153 transitions, 918 flow [2023-11-10 11:54:37,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=918, PETRI_PLACES=143, PETRI_TRANSITIONS=153} [2023-11-10 11:54:37,747 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 52 predicate places. [2023-11-10 11:54:37,747 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 153 transitions, 918 flow [2023-11-10 11:54:37,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:37,747 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] [2023-11-10 11:54:37,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:54:37,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:37,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1245270927, now seen corresponding path program 1 times [2023-11-10 11:54:37,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:37,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901929727] [2023-11-10 11:54:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:37,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:37,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901929727] [2023-11-10 11:54:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901929727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:37,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:37,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:54:37,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998293810] [2023-11-10 11:54:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:37,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:54:37,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:54:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:54:37,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-10 11:54:37,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 153 transitions, 918 flow. Second operand has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:37,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:37,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-10 11:54:37,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:38,034 INFO L124 PetriNetUnfolderBase]: 102/465 cut-off events. [2023-11-10 11:54:38,034 INFO L125 PetriNetUnfolderBase]: For 607/607 co-relation queries the response was YES. [2023-11-10 11:54:38,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 465 events. 102/465 cut-off events. For 607/607 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2348 event pairs, 4 based on Foata normal form. 4/466 useless extension candidates. Maximal degree in co-relation 1229. Up to 46 conditions per place. [2023-11-10 11:54:38,037 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 60 selfloop transitions, 84 changer transitions 0/204 dead transitions. [2023-11-10 11:54:38,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 204 transitions, 1466 flow [2023-11-10 11:54:38,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:54:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:54:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1485 transitions. [2023-11-10 11:54:38,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7304476143630103 [2023-11-10 11:54:38,057 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1485 transitions. [2023-11-10 11:54:38,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1485 transitions. [2023-11-10 11:54:38,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:38,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1485 transitions. [2023-11-10 11:54:38,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 78.15789473684211) internal successors, (1485), 19 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,064 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,064 INFO L175 Difference]: Start difference. First operand has 143 places, 153 transitions, 918 flow. Second operand 19 states and 1485 transitions. [2023-11-10 11:54:38,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 204 transitions, 1466 flow [2023-11-10 11:54:38,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 204 transitions, 1285 flow, removed 35 selfloop flow, removed 10 redundant places. [2023-11-10 11:54:38,075 INFO L231 Difference]: Finished difference. Result has 155 places, 175 transitions, 1135 flow [2023-11-10 11:54:38,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1135, PETRI_PLACES=155, PETRI_TRANSITIONS=175} [2023-11-10 11:54:38,077 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 64 predicate places. [2023-11-10 11:54:38,077 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 175 transitions, 1135 flow [2023-11-10 11:54:38,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:38,078 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] [2023-11-10 11:54:38,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:54:38,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:38,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:38,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1990691006, now seen corresponding path program 1 times [2023-11-10 11:54:38,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:38,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191688922] [2023-11-10 11:54:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:38,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:38,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:38,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191688922] [2023-11-10 11:54:38,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191688922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:38,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:38,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:54:38,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183157587] [2023-11-10 11:54:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:38,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:54:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:38,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:54:38,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:54:38,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2023-11-10 11:54:38,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 175 transitions, 1135 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:38,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2023-11-10 11:54:38,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:38,282 INFO L124 PetriNetUnfolderBase]: 19/240 cut-off events. [2023-11-10 11:54:38,282 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2023-11-10 11:54:38,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 240 events. 19/240 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 726 event pairs, 9 based on Foata normal form. 8/248 useless extension candidates. Maximal degree in co-relation 543. Up to 41 conditions per place. [2023-11-10 11:54:38,284 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 19 selfloop transitions, 10 changer transitions 0/110 dead transitions. [2023-11-10 11:54:38,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 110 transitions, 540 flow [2023-11-10 11:54:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:54:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:54:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 398 transitions. [2023-11-10 11:54:38,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7439252336448599 [2023-11-10 11:54:38,285 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 398 transitions. [2023-11-10 11:54:38,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 398 transitions. [2023-11-10 11:54:38,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:38,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 398 transitions. [2023-11-10 11:54:38,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,288 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,288 INFO L175 Difference]: Start difference. First operand has 155 places, 175 transitions, 1135 flow. Second operand 5 states and 398 transitions. [2023-11-10 11:54:38,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 110 transitions, 540 flow [2023-11-10 11:54:38,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 406 flow, removed 16 selfloop flow, removed 26 redundant places. [2023-11-10 11:54:38,292 INFO L231 Difference]: Finished difference. Result has 116 places, 107 transitions, 374 flow [2023-11-10 11:54:38,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=374, PETRI_PLACES=116, PETRI_TRANSITIONS=107} [2023-11-10 11:54:38,292 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 25 predicate places. [2023-11-10 11:54:38,292 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 107 transitions, 374 flow [2023-11-10 11:54:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:38,293 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] [2023-11-10 11:54:38,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:54:38,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:38,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:38,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1873173023, now seen corresponding path program 1 times [2023-11-10 11:54:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:38,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808029295] [2023-11-10 11:54:38,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:38,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:38,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808029295] [2023-11-10 11:54:38,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808029295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:38,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:38,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:54:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066865945] [2023-11-10 11:54:38,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:38,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:54:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:38,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:54:38,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:54:38,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2023-11-10 11:54:38,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 107 transitions, 374 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:38,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2023-11-10 11:54:38,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:38,528 INFO L124 PetriNetUnfolderBase]: 4/168 cut-off events. [2023-11-10 11:54:38,528 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-11-10 11:54:38,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 168 events. 4/168 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 368 event pairs, 0 based on Foata normal form. 2/170 useless extension candidates. Maximal degree in co-relation 343. Up to 24 conditions per place. [2023-11-10 11:54:38,529 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 26 selfloop transitions, 27 changer transitions 0/113 dead transitions. [2023-11-10 11:54:38,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 113 transitions, 490 flow [2023-11-10 11:54:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-10 11:54:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-10 11:54:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1261 transitions. [2023-11-10 11:54:38,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6932380428807037 [2023-11-10 11:54:38,532 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1261 transitions. [2023-11-10 11:54:38,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1261 transitions. [2023-11-10 11:54:38,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:38,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1261 transitions. [2023-11-10 11:54:38,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.17647058823529) internal successors, (1261), 17 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,537 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,537 INFO L175 Difference]: Start difference. First operand has 116 places, 107 transitions, 374 flow. Second operand 17 states and 1261 transitions. [2023-11-10 11:54:38,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 113 transitions, 490 flow [2023-11-10 11:54:38,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 113 transitions, 463 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-10 11:54:38,539 INFO L231 Difference]: Finished difference. Result has 124 places, 105 transitions, 393 flow [2023-11-10 11:54:38,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=393, PETRI_PLACES=124, PETRI_TRANSITIONS=105} [2023-11-10 11:54:38,540 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 33 predicate places. [2023-11-10 11:54:38,540 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 105 transitions, 393 flow [2023-11-10 11:54:38,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:38,541 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 11:54:38,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:54:38,541 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:38,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:38,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1068882275, now seen corresponding path program 1 times [2023-11-10 11:54:38,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:38,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945670517] [2023-11-10 11:54:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:38,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945670517] [2023-11-10 11:54:38,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945670517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:38,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:38,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:54:38,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270857108] [2023-11-10 11:54:38,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:38,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:54:38,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:54:38,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:54:38,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2023-11-10 11:54:38,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 105 transitions, 393 flow. Second operand has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:38,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2023-11-10 11:54:38,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:38,760 INFO L124 PetriNetUnfolderBase]: 4/164 cut-off events. [2023-11-10 11:54:38,760 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-10 11:54:38,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 164 events. 4/164 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 339 event pairs, 0 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 363. Up to 22 conditions per place. [2023-11-10 11:54:38,761 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 25 selfloop transitions, 27 changer transitions 0/111 dead transitions. [2023-11-10 11:54:38,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 111 transitions, 507 flow [2023-11-10 11:54:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-10 11:54:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-10 11:54:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1260 transitions. [2023-11-10 11:54:38,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6926882902693787 [2023-11-10 11:54:38,764 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1260 transitions. [2023-11-10 11:54:38,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1260 transitions. [2023-11-10 11:54:38,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:38,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1260 transitions. [2023-11-10 11:54:38,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.11764705882354) internal successors, (1260), 17 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,769 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,769 INFO L175 Difference]: Start difference. First operand has 124 places, 105 transitions, 393 flow. Second operand 17 states and 1260 transitions. [2023-11-10 11:54:38,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 111 transitions, 507 flow [2023-11-10 11:54:38,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 111 transitions, 450 flow, removed 3 selfloop flow, removed 15 redundant places. [2023-11-10 11:54:38,771 INFO L231 Difference]: Finished difference. Result has 123 places, 103 transitions, 382 flow [2023-11-10 11:54:38,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=382, PETRI_PLACES=123, PETRI_TRANSITIONS=103} [2023-11-10 11:54:38,772 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2023-11-10 11:54:38,772 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 103 transitions, 382 flow [2023-11-10 11:54:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:38,773 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] [2023-11-10 11:54:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-10 11:54:38,773 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:38,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:38,773 INFO L85 PathProgramCache]: Analyzing trace with hash 686703828, now seen corresponding path program 1 times [2023-11-10 11:54:38,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:38,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279831380] [2023-11-10 11:54:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:38,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:38,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:38,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279831380] [2023-11-10 11:54:38,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279831380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:38,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:54:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092693280] [2023-11-10 11:54:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:38,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:54:38,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:54:38,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:54:38,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2023-11-10 11:54:38,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 103 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:38,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2023-11-10 11:54:38,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:38,941 INFO L124 PetriNetUnfolderBase]: 12/178 cut-off events. [2023-11-10 11:54:38,941 INFO L125 PetriNetUnfolderBase]: For 69/71 co-relation queries the response was YES. [2023-11-10 11:54:38,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 178 events. 12/178 cut-off events. For 69/71 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 398 event pairs, 1 based on Foata normal form. 9/187 useless extension candidates. Maximal degree in co-relation 339. Up to 31 conditions per place. [2023-11-10 11:54:38,942 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 23 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2023-11-10 11:54:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 106 transitions, 452 flow [2023-11-10 11:54:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:54:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:54:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-11-10 11:54:38,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7364485981308411 [2023-11-10 11:54:38,944 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-11-10 11:54:38,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-11-10 11:54:38,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:38,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-11-10 11:54:38,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,946 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,946 INFO L175 Difference]: Start difference. First operand has 123 places, 103 transitions, 382 flow. Second operand 5 states and 394 transitions. [2023-11-10 11:54:38,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 106 transitions, 452 flow [2023-11-10 11:54:38,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 106 transitions, 385 flow, removed 3 selfloop flow, removed 17 redundant places. [2023-11-10 11:54:38,949 INFO L231 Difference]: Finished difference. Result has 110 places, 103 transitions, 327 flow [2023-11-10 11:54:38,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=110, PETRI_TRANSITIONS=103} [2023-11-10 11:54:38,949 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2023-11-10 11:54:38,949 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 103 transitions, 327 flow [2023-11-10 11:54:38,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:38,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:38,950 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] [2023-11-10 11:54:38,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:54:38,950 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-10 11:54:38,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash -331786569, now seen corresponding path program 1 times [2023-11-10 11:54:38,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:38,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146920435] [2023-11-10 11:54:38,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:38,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:39,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:39,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146920435] [2023-11-10 11:54:39,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146920435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:39,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:39,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:54:39,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524202597] [2023-11-10 11:54:39,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:39,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:54:39,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:39,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:54:39,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:54:39,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2023-11-10 11:54:39,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 103 transitions, 327 flow. Second operand has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:39,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:39,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2023-11-10 11:54:39,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:39,164 INFO L124 PetriNetUnfolderBase]: 4/147 cut-off events. [2023-11-10 11:54:39,164 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-10 11:54:39,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 147 events. 4/147 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 265 event pairs, 0 based on Foata normal form. 1/148 useless extension candidates. Maximal degree in co-relation 265. Up to 20 conditions per place. [2023-11-10 11:54:39,164 INFO L140 encePairwiseOnDemand]: 89/107 looper letters, 0 selfloop transitions, 0 changer transitions 103/103 dead transitions. [2023-11-10 11:54:39,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 103 transitions, 417 flow [2023-11-10 11:54:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-10 11:54:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-10 11:54:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2023-11-10 11:54:39,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6915887850467289 [2023-11-10 11:54:39,166 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2023-11-10 11:54:39,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2023-11-10 11:54:39,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:39,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2023-11-10 11:54:39,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:39,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:39,170 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:39,170 INFO L175 Difference]: Start difference. First operand has 110 places, 103 transitions, 327 flow. Second operand 12 states and 888 transitions. [2023-11-10 11:54:39,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 103 transitions, 417 flow [2023-11-10 11:54:39,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 103 transitions, 404 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:54:39,172 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2023-11-10 11:54:39,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2023-11-10 11:54:39,172 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 24 predicate places. [2023-11-10 11:54:39,173 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2023-11-10 11:54:39,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:39,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-10 11:54:39,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-10 11:54:39,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-11-10 11:54:39,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-10 11:54:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-10 11:54:39,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:39,178 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:54:39,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:54:39,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:54:39 BasicIcfg [2023-11-10 11:54:39,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:54:39,182 INFO L158 Benchmark]: Toolchain (without parser) took 4010.73ms. Allocated memory was 318.8MB in the beginning and 382.7MB in the end (delta: 64.0MB). Free memory was 267.4MB in the beginning and 262.6MB in the end (delta: 4.8MB). Peak memory consumption was 69.4MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,182 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 255.9MB. Free memory is still 208.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:54:39,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.58ms. Allocated memory is still 318.8MB. Free memory was 267.1MB in the beginning and 247.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.32ms. Allocated memory is still 318.8MB. Free memory was 247.7MB in the beginning and 245.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,183 INFO L158 Benchmark]: Boogie Preprocessor took 29.67ms. Allocated memory is still 318.8MB. Free memory was 245.7MB in the beginning and 244.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,183 INFO L158 Benchmark]: RCFGBuilder took 535.21ms. Allocated memory is still 318.8MB. Free memory was 244.0MB in the beginning and 285.2MB in the end (delta: -41.1MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,183 INFO L158 Benchmark]: TraceAbstraction took 3009.46ms. Allocated memory was 318.8MB in the beginning and 382.7MB in the end (delta: 64.0MB). Free memory was 284.6MB in the beginning and 262.6MB in the end (delta: 22.1MB). Peak memory consumption was 85.5MB. Max. memory is 8.0GB. [2023-11-10 11:54:39,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 255.9MB. Free memory is still 208.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 379.58ms. Allocated memory is still 318.8MB. Free memory was 267.1MB in the beginning and 247.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.32ms. Allocated memory is still 318.8MB. Free memory was 247.7MB in the beginning and 245.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.67ms. Allocated memory is still 318.8MB. Free memory was 245.7MB in the beginning and 244.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 535.21ms. Allocated memory is still 318.8MB. Free memory was 244.0MB in the beginning and 285.2MB in the end (delta: -41.1MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3009.46ms. Allocated memory was 318.8MB in the beginning and 382.7MB in the end (delta: 64.0MB). Free memory was 284.6MB in the beginning and 262.6MB in the end (delta: 22.1MB). Peak memory consumption was 85.5MB. 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, 125 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 550 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 550 mSDsluCounter, 644 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 472 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 775 IncrementalHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 172 mSDtfsCounter, 775 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1135occurred in iteration=4, InterpolantAutomatonStates: 112, 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, 1.1s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 1726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 11:54:39,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...