/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:11:47,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:11:47,629 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-VariableLbe.epf [2023-08-26 22:11:47,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:11:47,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:11:47,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:11:47,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:11:47,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:11:47,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:11:47,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:11:47,664 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:11:47,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:11:47,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:11:47,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:11:47,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:11:47,666 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:11:47,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:11:47,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:11:47,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:11:47,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:11:47,668 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:11:47,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:11:47,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:47,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:11:47,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:11:47,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:11:47,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:11:47,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:11:47,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:11:47,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:11:47,670 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:11:47,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:11:47,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:11:47,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:11:47,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:11:47,922 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:11:47,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-08-26 22:11:48,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:11:49,197 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:11:49,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-08-26 22:11:49,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0710c4754/1c980147954647718b39d14db061a467/FLAGb4d3cae6e [2023-08-26 22:11:49,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0710c4754/1c980147954647718b39d14db061a467 [2023-08-26 22:11:49,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:11:49,225 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:11:49,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:49,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:11:49,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:11:49,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b973b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49, skipping insertion in model container [2023-08-26 22:11:49,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,266 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:11:49,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:49,557 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:11:49,572 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [121] [2023-08-26 22:11:49,580 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-26 22:11:49,585 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-26 22:11:49,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:49,633 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:11:49,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49 WrapperNode [2023-08-26 22:11:49,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:49,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:49,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:11:49,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:11:49,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,686 INFO L138 Inliner]: procedures = 266, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2023-08-26 22:11:49,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:49,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:11:49,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:11:49,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:11:49,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:11:49,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:11:49,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:11:49,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:11:49,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (1/1) ... [2023-08-26 22:11:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:49,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:11:49,740 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) [2023-08-26 22:11:49,743 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 [2023-08-26 22:11:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:11:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:11:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:11:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:11:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:11:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:11:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:11:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:11:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:11:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:11:49,778 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:11:49,888 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:11:49,889 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:11:50,040 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:11:50,046 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:11:50,046 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 22:11:50,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:50 BoogieIcfgContainer [2023-08-26 22:11:50,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:11:50,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:11:50,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:11:50,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:11:50,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:11:49" (1/3) ... [2023-08-26 22:11:50,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce0dda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:50, skipping insertion in model container [2023-08-26 22:11:50,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:49" (2/3) ... [2023-08-26 22:11:50,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce0dda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:50, skipping insertion in model container [2023-08-26 22:11:50,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:50" (3/3) ... [2023-08-26 22:11:50,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2023-08-26 22:11:50,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:11:50,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-26 22:11:50,064 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:11:50,115 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 22:11:50,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 175 flow [2023-08-26 22:11:50,206 INFO L124 PetriNetUnfolderBase]: 4/84 cut-off events. [2023-08-26 22:11:50,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:50,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 4/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-08-26 22:11:50,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 85 transitions, 175 flow [2023-08-26 22:11:50,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 84 transitions, 171 flow [2023-08-26 22:11:50,216 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:11:50,225 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 171 flow [2023-08-26 22:11:50,227 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 171 flow [2023-08-26 22:11:50,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 171 flow [2023-08-26 22:11:50,250 INFO L124 PetriNetUnfolderBase]: 4/84 cut-off events. [2023-08-26 22:11:50,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:50,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 4/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-08-26 22:11:50,251 INFO L119 LiptonReduction]: Number of co-enabled transitions 1274 [2023-08-26 22:11:52,400 INFO L134 LiptonReduction]: Checked pairs total: 2163 [2023-08-26 22:11:52,401 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-08-26 22:11:52,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:11:52,413 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=LoopsAndPotentialCycles, 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;@71ca50d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:11:52,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-26 22:11:52,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:11:52,415 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-26 22:11:52,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:52,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:52,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:11:52,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:52,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash 319754, now seen corresponding path program 1 times [2023-08-26 22:11:52,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:52,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335311167] [2023-08-26 22:11:52,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:52,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:52,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:52,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335311167] [2023-08-26 22:11:52,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335311167] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:52,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:52,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623628414] [2023-08-26 22:11:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:52,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 22:11:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 22:11:52,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 22:11:52,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 187 [2023-08-26 22:11:52,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 22 transitions, 47 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-08-26 22:11:52,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:52,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 187 [2023-08-26 22:11:52,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:52,643 INFO L124 PetriNetUnfolderBase]: 80/165 cut-off events. [2023-08-26 22:11:52,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:52,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 165 events. 80/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 653 event pairs, 66 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 326. Up to 166 conditions per place. [2023-08-26 22:11:52,645 INFO L140 encePairwiseOnDemand]: 186/187 looper letters, 21 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-08-26 22:11:52,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 87 flow [2023-08-26 22:11:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 22:11:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 22:11:52,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2023-08-26 22:11:52,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5080213903743316 [2023-08-26 22:11:52,654 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2023-08-26 22:11:52,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2023-08-26 22:11:52,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:52,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2023-08-26 22:11:52,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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) [2023-08-26 22:11:52,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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) [2023-08-26 22:11:52,661 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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) [2023-08-26 22:11:52,663 INFO L175 Difference]: Start difference. First operand has 24 places, 22 transitions, 47 flow. Second operand 2 states and 190 transitions. [2023-08-26 22:11:52,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 87 flow [2023-08-26 22:11:52,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:52,665 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2023-08-26 22:11:52,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-08-26 22:11:52,669 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-08-26 22:11:52,669 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2023-08-26 22:11:52,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-08-26 22:11:52,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:52,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:11:52,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:11:52,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:52,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash 319751, now seen corresponding path program 1 times [2023-08-26 22:11:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:52,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689300111] [2023-08-26 22:11:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:52,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689300111] [2023-08-26 22:11:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689300111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:52,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:52,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108113065] [2023-08-26 22:11:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:52,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:52,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:52,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 22:11:52,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-08-26 22:11:52,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:52,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 22:11:52,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:52,768 INFO L124 PetriNetUnfolderBase]: 68/139 cut-off events. [2023-08-26 22:11:52,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:52,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 139 events. 68/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 498 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 280. Up to 139 conditions per place. [2023-08-26 22:11:52,771 INFO L140 encePairwiseOnDemand]: 184/187 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-08-26 22:11:52,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 78 flow [2023-08-26 22:11:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-26 22:11:52,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39037433155080214 [2023-08-26 22:11:52,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-26 22:11:52,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-26 22:11:52,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:52,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-26 22:11:52,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2023-08-26 22:11:52,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,776 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 219 transitions. [2023-08-26 22:11:52,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 78 flow [2023-08-26 22:11:52,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 22:11:52,777 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2023-08-26 22:11:52,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-08-26 22:11:52,778 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-08-26 22:11:52,778 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2023-08-26 22:11:52,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-08-26 22:11:52,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:52,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:11:52,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:11:52,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:52,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:52,779 INFO L85 PathProgramCache]: Analyzing trace with hash 319753, now seen corresponding path program 1 times [2023-08-26 22:11:52,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:52,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174874196] [2023-08-26 22:11:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:52,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:52,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174874196] [2023-08-26 22:11:52,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174874196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:52,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:52,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:52,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301534689] [2023-08-26 22:11:52,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:52,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:52,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:52,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:52,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:52,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 22:11:52,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-08-26 22:11:52,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:52,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 22:11:52,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:52,880 INFO L124 PetriNetUnfolderBase]: 56/113 cut-off events. [2023-08-26 22:11:52,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:52,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 113 events. 56/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 362 event pairs, 42 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 229. Up to 113 conditions per place. [2023-08-26 22:11:52,881 INFO L140 encePairwiseOnDemand]: 184/187 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-26 22:11:52,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 72 flow [2023-08-26 22:11:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-26 22:11:52,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868092691622103 [2023-08-26 22:11:52,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-26 22:11:52,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-26 22:11:52,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:52,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-26 22:11:52,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2023-08-26 22:11:52,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,888 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 217 transitions. [2023-08-26 22:11:52,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 72 flow [2023-08-26 22:11:52,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:52,889 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 39 flow [2023-08-26 22:11:52,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=39, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-08-26 22:11:52,890 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-08-26 22:11:52,890 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 39 flow [2023-08-26 22:11:52,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-08-26 22:11:52,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:52,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 22:11:52,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 22:11:52,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:52,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash 9912536, now seen corresponding path program 1 times [2023-08-26 22:11:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243733087] [2023-08-26 22:11:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:52,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:52,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243733087] [2023-08-26 22:11:52,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243733087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:52,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:52,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:11:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225828644] [2023-08-26 22:11:52,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:52,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:52,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 22:11:52,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-08-26 22:11:52,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:52,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 22:11:52,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:52,974 INFO L124 PetriNetUnfolderBase]: 61/132 cut-off events. [2023-08-26 22:11:52,974 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:52,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 526 event pairs, 42 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 268. Up to 107 conditions per place. [2023-08-26 22:11:52,975 INFO L140 encePairwiseOnDemand]: 183/187 looper letters, 18 selfloop transitions, 3 changer transitions 3/24 dead transitions. [2023-08-26 22:11:52,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 101 flow [2023-08-26 22:11:52,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2023-08-26 22:11:52,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39750445632798576 [2023-08-26 22:11:52,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2023-08-26 22:11:52,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2023-08-26 22:11:52,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:52,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2023-08-26 22:11:52,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-08-26 22:11:52,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:52,979 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 39 flow. Second operand 3 states and 223 transitions. [2023-08-26 22:11:52,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 101 flow [2023-08-26 22:11:52,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:52,979 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 53 flow [2023-08-26 22:11:52,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-26 22:11:52,980 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2023-08-26 22:11:52,980 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 53 flow [2023-08-26 22:11:52,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-08-26 22:11:52,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:52,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 22:11:52,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 22:11:52,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:52,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash 9912440, now seen corresponding path program 1 times [2023-08-26 22:11:52,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:52,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782012565] [2023-08-26 22:11:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:52,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782012565] [2023-08-26 22:11:53,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782012565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221945758] [2023-08-26 22:11:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:53,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:53,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:53,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 187 [2023-08-26 22:11:53,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 187 [2023-08-26 22:11:53,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,045 INFO L124 PetriNetUnfolderBase]: 48/116 cut-off events. [2023-08-26 22:11:53,045 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-26 22:11:53,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 116 events. 48/116 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 418 event pairs, 23 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 276. Up to 62 conditions per place. [2023-08-26 22:11:53,046 INFO L140 encePairwiseOnDemand]: 180/187 looper letters, 24 selfloop transitions, 5 changer transitions 3/32 dead transitions. [2023-08-26 22:11:53,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 158 flow [2023-08-26 22:11:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-26 22:11:53,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47950089126559714 [2023-08-26 22:11:53,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-26 22:11:53,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-26 22:11:53,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-26 22:11:53,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-08-26 22:11:53,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,050 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 53 flow. Second operand 3 states and 269 transitions. [2023-08-26 22:11:53,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 158 flow [2023-08-26 22:11:53,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 32 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:53,051 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 90 flow [2023-08-26 22:11:53,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-08-26 22:11:53,051 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-08-26 22:11:53,052 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 90 flow [2023-08-26 22:11:53,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 22:11:53,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 22:11:53,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash 9912442, now seen corresponding path program 1 times [2023-08-26 22:11:53,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619310253] [2023-08-26 22:11:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619310253] [2023-08-26 22:11:53,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619310253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:53,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262439630] [2023-08-26 22:11:53,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:53,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:53,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:53,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 187 [2023-08-26 22:11:53,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 187 [2023-08-26 22:11:53,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,126 INFO L124 PetriNetUnfolderBase]: 39/93 cut-off events. [2023-08-26 22:11:53,126 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-26 22:11:53,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 93 events. 39/93 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 308 event pairs, 15 based on Foata normal form. 9/90 useless extension candidates. Maximal degree in co-relation 259. Up to 57 conditions per place. [2023-08-26 22:11:53,127 INFO L140 encePairwiseOnDemand]: 180/187 looper letters, 19 selfloop transitions, 5 changer transitions 6/30 dead transitions. [2023-08-26 22:11:53,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 172 flow [2023-08-26 22:11:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-26 22:11:53,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47593582887700536 [2023-08-26 22:11:53,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-26 22:11:53,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-26 22:11:53,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-26 22:11:53,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-26 22:11:53,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,130 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 90 flow. Second operand 3 states and 267 transitions. [2023-08-26 22:11:53,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 172 flow [2023-08-26 22:11:53,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 22:11:53,132 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 70 flow [2023-08-26 22:11:53,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2023-08-26 22:11:53,132 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-08-26 22:11:53,132 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 70 flow [2023-08-26 22:11:53,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 22:11:53,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash 935929648, now seen corresponding path program 1 times [2023-08-26 22:11:53,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894715441] [2023-08-26 22:11:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894715441] [2023-08-26 22:11:53,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894715441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:11:53,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970044411] [2023-08-26 22:11:53,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:53,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:53,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:53,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 22:11:53,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-08-26 22:11:53,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 22:11:53,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,206 INFO L124 PetriNetUnfolderBase]: 20/54 cut-off events. [2023-08-26 22:11:53,207 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-26 22:11:53,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 54 events. 20/54 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 6 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 149. Up to 29 conditions per place. [2023-08-26 22:11:53,209 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 14 selfloop transitions, 4 changer transitions 5/23 dead transitions. [2023-08-26 22:11:53,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 138 flow [2023-08-26 22:11:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-26 22:11:53,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39037433155080214 [2023-08-26 22:11:53,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-26 22:11:53,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-26 22:11:53,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-26 22:11:53,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2023-08-26 22:11:53,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 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) [2023-08-26 22:11:53,213 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 70 flow. Second operand 3 states and 219 transitions. [2023-08-26 22:11:53,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 138 flow [2023-08-26 22:11:53,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 136 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:53,214 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 64 flow [2023-08-26 22:11:53,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2023-08-26 22:11:53,216 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-08-26 22:11:53,216 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 64 flow [2023-08-26 22:11:53,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-08-26 22:11:53,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 22:11:53,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1052987778, now seen corresponding path program 1 times [2023-08-26 22:11:53,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962842386] [2023-08-26 22:11:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962842386] [2023-08-26 22:11:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962842386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:11:53,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774604795] [2023-08-26 22:11:53,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 22:11:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 22:11:53,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 22:11:53,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 187 [2023-08-26 22:11:53,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 187 [2023-08-26 22:11:53,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,347 INFO L124 PetriNetUnfolderBase]: 14/44 cut-off events. [2023-08-26 22:11:53,347 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-26 22:11:53,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 44 events. 14/44 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 5 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 127. Up to 13 conditions per place. [2023-08-26 22:11:53,347 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 12 selfloop transitions, 5 changer transitions 5/22 dead transitions. [2023-08-26 22:11:53,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 126 flow [2023-08-26 22:11:53,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 22:11:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 22:11:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 534 transitions. [2023-08-26 22:11:53,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4079449961802903 [2023-08-26 22:11:53,349 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 534 transitions. [2023-08-26 22:11:53,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 534 transitions. [2023-08-26 22:11:53,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 534 transitions. [2023-08-26 22:11:53,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 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) [2023-08-26 22:11:53,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 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) [2023-08-26 22:11:53,351 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 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) [2023-08-26 22:11:53,352 INFO L175 Difference]: Start difference. First operand has 26 places, 14 transitions, 64 flow. Second operand 7 states and 534 transitions. [2023-08-26 22:11:53,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 126 flow [2023-08-26 22:11:53,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 22:11:53,352 INFO L231 Difference]: Finished difference. Result has 29 places, 13 transitions, 60 flow [2023-08-26 22:11:53,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=13} [2023-08-26 22:11:53,353 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-08-26 22:11:53,353 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 13 transitions, 60 flow [2023-08-26 22:11:53,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 22:11:53,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1052987777, now seen corresponding path program 1 times [2023-08-26 22:11:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382609771] [2023-08-26 22:11:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382609771] [2023-08-26 22:11:53,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382609771] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:11:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526679195] [2023-08-26 22:11:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 22:11:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 22:11:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 22:11:53,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 187 [2023-08-26 22:11:53,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 13 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 187 [2023-08-26 22:11:53,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,429 INFO L124 PetriNetUnfolderBase]: 12/36 cut-off events. [2023-08-26 22:11:53,429 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-26 22:11:53,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 36 events. 12/36 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 79 event pairs, 3 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 105. Up to 10 conditions per place. [2023-08-26 22:11:53,429 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 8 selfloop transitions, 3 changer transitions 7/18 dead transitions. [2023-08-26 22:11:53,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 104 flow [2023-08-26 22:11:53,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 22:11:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 22:11:53,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 384 transitions. [2023-08-26 22:11:53,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4106951871657754 [2023-08-26 22:11:53,430 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 384 transitions. [2023-08-26 22:11:53,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 384 transitions. [2023-08-26 22:11:53,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 384 transitions. [2023-08-26 22:11:53,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2023-08-26 22:11:53,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2023-08-26 22:11:53,433 INFO L175 Difference]: Start difference. First operand has 29 places, 13 transitions, 60 flow. Second operand 5 states and 384 transitions. [2023-08-26 22:11:53,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 104 flow [2023-08-26 22:11:53,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 22:11:53,433 INFO L231 Difference]: Finished difference. Result has 28 places, 9 transitions, 42 flow [2023-08-26 22:11:53,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=42, PETRI_PLACES=28, PETRI_TRANSITIONS=9} [2023-08-26 22:11:53,434 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-08-26 22:11:53,434 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 9 transitions, 42 flow [2023-08-26 22:11:53,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:53,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 22:11:53,435 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1053064411, now seen corresponding path program 1 times [2023-08-26 22:11:53,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335341230] [2023-08-26 22:11:53,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335341230] [2023-08-26 22:11:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335341230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:11:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550227673] [2023-08-26 22:11:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 22:11:53,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 22:11:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 22:11:53,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 187 [2023-08-26 22:11:53,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 9 transitions, 42 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) [2023-08-26 22:11:53,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 187 [2023-08-26 22:11:53,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,536 INFO L124 PetriNetUnfolderBase]: 5/18 cut-off events. [2023-08-26 22:11:53,536 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-26 22:11:53,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 18 events. 5/18 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 1 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2023-08-26 22:11:53,536 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 8 selfloop transitions, 4 changer transitions 0/12 dead transitions. [2023-08-26 22:11:53,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 12 transitions, 74 flow [2023-08-26 22:11:53,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 22:11:53,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 22:11:53,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-08-26 22:11:53,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40819964349376114 [2023-08-26 22:11:53,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-08-26 22:11:53,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-08-26 22:11:53,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-08-26 22:11:53,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2023-08-26 22:11:53,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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) [2023-08-26 22:11:53,540 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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) [2023-08-26 22:11:53,540 INFO L175 Difference]: Start difference. First operand has 28 places, 9 transitions, 42 flow. Second operand 6 states and 458 transitions. [2023-08-26 22:11:53,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 12 transitions, 74 flow [2023-08-26 22:11:53,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 12 transitions, 58 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-26 22:11:53,541 INFO L231 Difference]: Finished difference. Result has 21 places, 8 transitions, 32 flow [2023-08-26 22:11:53,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=32, PETRI_PLACES=21, PETRI_TRANSITIONS=8} [2023-08-26 22:11:53,542 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-08-26 22:11:53,542 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 8 transitions, 32 flow [2023-08-26 22:11:53,542 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) [2023-08-26 22:11:53,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:53,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 22:11:53,543 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:53,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:53,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1053064413, now seen corresponding path program 1 times [2023-08-26 22:11:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:53,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605160688] [2023-08-26 22:11:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:53,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:53,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:53,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605160688] [2023-08-26 22:11:53,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605160688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:53,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:53,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:11:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269246509] [2023-08-26 22:11:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 22:11:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:53,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 22:11:53,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 22:11:53,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 187 [2023-08-26 22:11:53,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 8 transitions, 32 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) [2023-08-26 22:11:53,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:53,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 187 [2023-08-26 22:11:53,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:53,601 INFO L124 PetriNetUnfolderBase]: 4/15 cut-off events. [2023-08-26 22:11:53,601 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:11:53,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 15 events. 4/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 1 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 43. Up to 6 conditions per place. [2023-08-26 22:11:53,602 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-08-26 22:11:53,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 10 transitions, 54 flow [2023-08-26 22:11:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 22:11:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 22:11:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 456 transitions. [2023-08-26 22:11:53,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40641711229946526 [2023-08-26 22:11:53,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 456 transitions. [2023-08-26 22:11:53,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 456 transitions. [2023-08-26 22:11:53,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:53,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 456 transitions. [2023-08-26 22:11:53,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 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) [2023-08-26 22:11:53,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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) [2023-08-26 22:11:53,605 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 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) [2023-08-26 22:11:53,605 INFO L175 Difference]: Start difference. First operand has 21 places, 8 transitions, 32 flow. Second operand 6 states and 456 transitions. [2023-08-26 22:11:53,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 10 transitions, 54 flow [2023-08-26 22:11:53,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 10 transitions, 45 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 22:11:53,606 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-26 22:11:53,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-26 22:11:53,606 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -5 predicate places. [2023-08-26 22:11:53,606 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-26 22:11:53,607 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) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-26 22:11:53,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-26 22:11:53,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-26 22:11:53,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-26 22:11:53,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-26 22:11:53,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-26 22:11:53,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-26 22:11:53,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-26 22:11:53,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 22:11:53,612 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:53,615 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:11:53,616 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:11:53,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:11:53 BasicIcfg [2023-08-26 22:11:53,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:11:53,618 INFO L158 Benchmark]: Toolchain (without parser) took 4393.10ms. Allocated memory was 337.6MB in the beginning and 461.4MB in the end (delta: 123.7MB). Free memory was 312.1MB in the beginning and 411.3MB in the end (delta: -99.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.0GB. [2023-08-26 22:11:53,618 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 337.6MB. Free memory is still 313.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:53,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.43ms. Allocated memory is still 337.6MB. Free memory was 312.1MB in the beginning and 284.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 22:11:53,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.59ms. Allocated memory is still 337.6MB. Free memory was 284.5MB in the beginning and 282.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:11:53,620 INFO L158 Benchmark]: Boogie Preprocessor took 20.74ms. Allocated memory is still 337.6MB. Free memory was 282.4MB in the beginning and 280.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:11:53,620 INFO L158 Benchmark]: RCFGBuilder took 336.07ms. Allocated memory is still 337.6MB. Free memory was 280.8MB in the beginning and 267.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 22:11:53,620 INFO L158 Benchmark]: TraceAbstraction took 3568.98ms. Allocated memory was 337.6MB in the beginning and 461.4MB in the end (delta: 123.7MB). Free memory was 266.7MB in the beginning and 411.3MB in the end (delta: -144.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:53,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 337.6MB. Free memory is still 313.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 407.43ms. Allocated memory is still 337.6MB. Free memory was 312.1MB in the beginning and 284.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.59ms. Allocated memory is still 337.6MB. Free memory was 284.5MB in the beginning and 282.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.74ms. Allocated memory is still 337.6MB. Free memory was 282.4MB in the beginning and 280.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 336.07ms. Allocated memory is still 337.6MB. Free memory was 280.8MB in the beginning and 267.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3568.98ms. Allocated memory was 337.6MB in the beginning and 461.4MB in the end (delta: 123.7MB). Free memory was 266.7MB in the beginning and 411.3MB in the end (delta: -144.7MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 121]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [121] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 84 PlacesBefore, 24 PlacesAfterwards, 84 TransitionsBefore, 22 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 102 TotalNumberOfCompositions, 2163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1384, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 777, independent: 755, independent conditional: 0, independent unconditional: 755, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1384, independent: 556, independent conditional: 0, independent unconditional: 556, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 777, unknown conditional: 0, unknown unconditional: 777] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 13 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: 3.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=5, InterpolantAutomatonStates: 44, 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, 0.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 22:11:53,651 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...