/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 --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:08:26,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:08:27,032 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 [2023-08-27 12:08:27,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:08:27,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:08:27,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:08:27,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:08:27,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:08:27,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:08:27,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:08:27,068 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:08:27,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:08:27,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:08:27,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:08:27,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:08:27,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:08:27,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:08:27,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:08:27,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:08:27,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:08:27,072 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:08:27,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:08:27,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:08:27,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:08:27,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:08:27,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:08:27,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:08:27,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:08:27,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:08:27,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:08:27,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:08:27,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:08:27,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:08:27,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:08:27,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:08:27,345 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:08:27,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-27 12:08:28,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:08:28,594 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:08:28,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-27 12:08:28,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36d8ffb9/35c86df7c6134827bf5945ad3a32b7f2/FLAGafad534bc [2023-08-27 12:08:28,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36d8ffb9/35c86df7c6134827bf5945ad3a32b7f2 [2023-08-27 12:08:28,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:08:28,624 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:08:28,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:08:28,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:08:28,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:08:28,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:28,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a02deeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28, skipping insertion in model container [2023-08-27 12:08:28,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:28,657 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:08:28,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:08:28,851 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:08:28,875 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [236] [2023-08-27 12:08:28,876 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-27 12:08:28,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:08:28,953 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:08:28,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28 WrapperNode [2023-08-27 12:08:28,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:08:28,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:08:28,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:08:28,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:08:28,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:28,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,012 INFO L138 Inliner]: procedures = 165, calls = 43, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 181 [2023-08-27 12:08:29,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:08:29,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:08:29,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:08:29,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:08:29,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:08:29,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:08:29,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:08:29,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:08:29,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (1/1) ... [2023-08-27 12:08:29,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:08:29,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:08:29,081 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) [2023-08-27 12:08:29,097 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 [2023-08-27 12:08:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:08:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 12:08:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:08:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:08:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 12:08:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 12:08:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:08:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:08:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:08:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:08:29,116 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:08:29,240 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:08:29,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:08:29,523 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:08:29,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:08:29,529 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:08:29,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:08:29 BoogieIcfgContainer [2023-08-27 12:08:29,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:08:29,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:08:29,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:08:29,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:08:29,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:08:28" (1/3) ... [2023-08-27 12:08:29,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b35af1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:08:29, skipping insertion in model container [2023-08-27 12:08:29,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:28" (2/3) ... [2023-08-27 12:08:29,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b35af1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:08:29, skipping insertion in model container [2023-08-27 12:08:29,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:08:29" (3/3) ... [2023-08-27 12:08:29,536 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-27 12:08:29,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:08:29,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-27 12:08:29,575 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:08:29,616 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 12:08:29,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 223 transitions, 451 flow [2023-08-27 12:08:29,695 INFO L124 PetriNetUnfolderBase]: 15/225 cut-off events. [2023-08-27 12:08:29,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:29,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 225 events. 15/225 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 308 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 178. Up to 2 conditions per place. [2023-08-27 12:08:29,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 223 transitions, 451 flow [2023-08-27 12:08:29,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 221 transitions, 445 flow [2023-08-27 12:08:29,707 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:08:29,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 221 transitions, 445 flow [2023-08-27 12:08:29,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 221 transitions, 445 flow [2023-08-27 12:08:29,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 221 transitions, 445 flow [2023-08-27 12:08:29,753 INFO L124 PetriNetUnfolderBase]: 15/221 cut-off events. [2023-08-27 12:08:29,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:29,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 221 events. 15/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 300 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 178. Up to 2 conditions per place. [2023-08-27 12:08:29,759 INFO L119 LiptonReduction]: Number of co-enabled transitions 14960 [2023-08-27 12:08:37,024 INFO L134 LiptonReduction]: Checked pairs total: 25699 [2023-08-27 12:08:37,024 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-08-27 12:08:37,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:08:37,061 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;@58a8ef72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:08:37,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-27 12:08:37,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:08:37,079 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2023-08-27 12:08:37,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:37,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:37,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 12:08:37,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:37,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1230828147, now seen corresponding path program 1 times [2023-08-27 12:08:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:37,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229340151] [2023-08-27 12:08:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:37,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:37,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229340151] [2023-08-27 12:08:37,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229340151] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:37,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:37,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 12:08:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316332728] [2023-08-27 12:08:37,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:37,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 12:08:37,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 12:08:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 12:08:37,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 490 [2023-08-27 12:08:37,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 196.5) internal successors, (786), 4 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:37,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 490 [2023-08-27 12:08:37,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:37,679 INFO L124 PetriNetUnfolderBase]: 195/479 cut-off events. [2023-08-27 12:08:37,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:37,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 479 events. 195/479 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2316 event pairs, 24 based on Foata normal form. 36/406 useless extension candidates. Maximal degree in co-relation 903. Up to 273 conditions per place. [2023-08-27 12:08:37,682 INFO L140 encePairwiseOnDemand]: 468/490 looper letters, 56 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2023-08-27 12:08:37,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 261 flow [2023-08-27 12:08:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:08:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:08:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1078 transitions. [2023-08-27 12:08:37,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-27 12:08:37,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1078 transitions. [2023-08-27 12:08:37,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1078 transitions. [2023-08-27 12:08:37,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:37,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1078 transitions. [2023-08-27 12:08:37,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 215.6) internal successors, (1078), 5 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,709 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,711 INFO L175 Difference]: Start difference. First operand has 48 places, 49 transitions, 101 flow. Second operand 5 states and 1078 transitions. [2023-08-27 12:08:37,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 261 flow [2023-08-27 12:08:37,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 66 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:08:37,715 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 118 flow [2023-08-27 12:08:37,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-08-27 12:08:37,718 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-08-27 12:08:37,718 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 118 flow [2023-08-27 12:08:37,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 196.5) internal successors, (786), 4 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:37,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 12:08:37,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:08:37,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:37,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:37,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1228069706, now seen corresponding path program 1 times [2023-08-27 12:08:37,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:37,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566794507] [2023-08-27 12:08:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566794507] [2023-08-27 12:08:37,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566794507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:37,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:37,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:08:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784357383] [2023-08-27 12:08:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:37,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:08:37,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:37,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:08:37,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:08:37,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 490 [2023-08-27 12:08:37,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:37,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 490 [2023-08-27 12:08:37,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:37,827 INFO L124 PetriNetUnfolderBase]: 180/419 cut-off events. [2023-08-27 12:08:37,827 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-27 12:08:37,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 419 events. 180/419 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1807 event pairs, 152 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 929. Up to 383 conditions per place. [2023-08-27 12:08:37,829 INFO L140 encePairwiseOnDemand]: 488/490 looper letters, 25 selfloop transitions, 1 changer transitions 7/36 dead transitions. [2023-08-27 12:08:37,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 173 flow [2023-08-27 12:08:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:08:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:08:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2023-08-27 12:08:37,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-27 12:08:37,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 637 transitions. [2023-08-27 12:08:37,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 637 transitions. [2023-08-27 12:08:37,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:37,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 637 transitions. [2023-08-27 12:08:37,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,836 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 118 flow. Second operand 3 states and 637 transitions. [2023-08-27 12:08:37,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 173 flow [2023-08-27 12:08:37,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:08:37,838 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 88 flow [2023-08-27 12:08:37,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2023-08-27 12:08:37,838 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-08-27 12:08:37,839 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 88 flow [2023-08-27 12:08:37,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:37,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:08:37,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:37,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1709771587, now seen corresponding path program 1 times [2023-08-27 12:08:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:37,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123184666] [2023-08-27 12:08:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:37,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:37,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:37,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123184666] [2023-08-27 12:08:37,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123184666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:37,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:37,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:08:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392245038] [2023-08-27 12:08:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:37,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:08:37,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:08:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:08:37,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 490 [2023-08-27 12:08:37,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 195.6) internal successors, (978), 5 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:37,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:37,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 490 [2023-08-27 12:08:37,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,119 INFO L124 PetriNetUnfolderBase]: 122/312 cut-off events. [2023-08-27 12:08:38,119 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 12:08:38,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 312 events. 122/312 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1286 event pairs, 46 based on Foata normal form. 6/306 useless extension candidates. Maximal degree in co-relation 667. Up to 154 conditions per place. [2023-08-27 12:08:38,121 INFO L140 encePairwiseOnDemand]: 483/490 looper letters, 46 selfloop transitions, 9 changer transitions 0/58 dead transitions. [2023-08-27 12:08:38,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 262 flow [2023-08-27 12:08:38,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 12:08:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 12:08:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1611 transitions. [2023-08-27 12:08:38,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41096938775510206 [2023-08-27 12:08:38,125 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1611 transitions. [2023-08-27 12:08:38,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1611 transitions. [2023-08-27 12:08:38,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1611 transitions. [2023-08-27 12:08:38,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 201.375) internal successors, (1611), 8 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 490.0) internal successors, (4410), 9 states have internal predecessors, (4410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,135 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 490.0) internal successors, (4410), 9 states have internal predecessors, (4410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,135 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 88 flow. Second operand 8 states and 1611 transitions. [2023-08-27 12:08:38,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 262 flow [2023-08-27 12:08:38,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:08:38,137 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 135 flow [2023-08-27 12:08:38,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=135, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2023-08-27 12:08:38,138 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-08-27 12:08:38,138 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 135 flow [2023-08-27 12:08:38,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 195.6) internal successors, (978), 5 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 12:08:38,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,140 INFO L85 PathProgramCache]: Analyzing trace with hash 169472404, now seen corresponding path program 1 times [2023-08-27 12:08:38,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650142128] [2023-08-27 12:08:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:38,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:38,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:38,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650142128] [2023-08-27 12:08:38,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650142128] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:38,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:38,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:08:38,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420732396] [2023-08-27 12:08:38,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:38,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:08:38,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:38,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:08:38,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:08:38,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 490 [2023-08-27 12:08:38,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:38,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 490 [2023-08-27 12:08:38,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,257 INFO L124 PetriNetUnfolderBase]: 109/280 cut-off events. [2023-08-27 12:08:38,257 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2023-08-27 12:08:38,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 280 events. 109/280 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1135 event pairs, 42 based on Foata normal form. 15/295 useless extension candidates. Maximal degree in co-relation 686. Up to 166 conditions per place. [2023-08-27 12:08:38,259 INFO L140 encePairwiseOnDemand]: 481/490 looper letters, 35 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2023-08-27 12:08:38,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 254 flow [2023-08-27 12:08:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:08:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:08:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-08-27 12:08:38,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41496598639455784 [2023-08-27 12:08:38,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-08-27 12:08:38,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-08-27 12:08:38,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-08-27 12:08:38,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,265 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 135 flow. Second operand 3 states and 610 transitions. [2023-08-27 12:08:38,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 254 flow [2023-08-27 12:08:38,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 224 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-27 12:08:38,267 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 141 flow [2023-08-27 12:08:38,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-08-27 12:08:38,268 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-08-27 12:08:38,268 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 141 flow [2023-08-27 12:08:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 12:08:38,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr8ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1881930879, now seen corresponding path program 1 times [2023-08-27 12:08:38,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444294665] [2023-08-27 12:08:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:38,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:38,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444294665] [2023-08-27 12:08:38,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444294665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:38,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:38,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:08:38,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797056147] [2023-08-27 12:08:38,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:38,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 12:08:38,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 12:08:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-27 12:08:38,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 490 [2023-08-27 12:08:38,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:38,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 490 [2023-08-27 12:08:38,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,487 INFO L124 PetriNetUnfolderBase]: 65/200 cut-off events. [2023-08-27 12:08:38,487 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-08-27 12:08:38,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 200 events. 65/200 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 812 event pairs, 34 based on Foata normal form. 10/205 useless extension candidates. Maximal degree in co-relation 535. Up to 121 conditions per place. [2023-08-27 12:08:38,488 INFO L140 encePairwiseOnDemand]: 483/490 looper letters, 24 selfloop transitions, 2 changer transitions 21/52 dead transitions. [2023-08-27 12:08:38,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 291 flow [2023-08-27 12:08:38,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 12:08:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 12:08:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1334 transitions. [2023-08-27 12:08:38,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3889212827988338 [2023-08-27 12:08:38,491 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1334 transitions. [2023-08-27 12:08:38,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1334 transitions. [2023-08-27 12:08:38,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1334 transitions. [2023-08-27 12:08:38,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 190.57142857142858) internal successors, (1334), 7 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 490.0) internal successors, (3920), 8 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 490.0) internal successors, (3920), 8 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,497 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 141 flow. Second operand 7 states and 1334 transitions. [2023-08-27 12:08:38,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 291 flow [2023-08-27 12:08:38,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:08:38,499 INFO L231 Difference]: Finished difference. Result has 52 places, 30 transitions, 123 flow [2023-08-27 12:08:38,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=123, PETRI_PLACES=52, PETRI_TRANSITIONS=30} [2023-08-27 12:08:38,500 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2023-08-27 12:08:38,500 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 30 transitions, 123 flow [2023-08-27 12:08:38,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:08:38,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1216268683, now seen corresponding path program 1 times [2023-08-27 12:08:38,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658833245] [2023-08-27 12:08:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:38,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:38,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658833245] [2023-08-27 12:08:38,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658833245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:38,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:38,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:08:38,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423719857] [2023-08-27 12:08:38,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:38,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:08:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:08:38,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:08:38,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 490 [2023-08-27 12:08:38,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 30 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:38,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 490 [2023-08-27 12:08:38,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,665 INFO L124 PetriNetUnfolderBase]: 57/159 cut-off events. [2023-08-27 12:08:38,665 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 12:08:38,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 159 events. 57/159 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 585 event pairs, 32 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 437. Up to 106 conditions per place. [2023-08-27 12:08:38,666 INFO L140 encePairwiseOnDemand]: 485/490 looper letters, 34 selfloop transitions, 5 changer transitions 1/44 dead transitions. [2023-08-27 12:08:38,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 257 flow [2023-08-27 12:08:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:08:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:08:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 913 transitions. [2023-08-27 12:08:38,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3726530612244898 [2023-08-27 12:08:38,668 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 913 transitions. [2023-08-27 12:08:38,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 913 transitions. [2023-08-27 12:08:38,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 913 transitions. [2023-08-27 12:08:38,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 182.6) internal successors, (913), 5 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,673 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,673 INFO L175 Difference]: Start difference. First operand has 52 places, 30 transitions, 123 flow. Second operand 5 states and 913 transitions. [2023-08-27 12:08:38,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 257 flow [2023-08-27 12:08:38,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 213 flow, removed 18 selfloop flow, removed 11 redundant places. [2023-08-27 12:08:38,674 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 118 flow [2023-08-27 12:08:38,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-08-27 12:08:38,675 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-08-27 12:08:38,675 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 118 flow [2023-08-27 12:08:38,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.4) internal successors, (887), 5 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:08:38,676 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -603171096, now seen corresponding path program 1 times [2023-08-27 12:08:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600501709] [2023-08-27 12:08:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:38,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600501709] [2023-08-27 12:08:38,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600501709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:38,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:08:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087724564] [2023-08-27 12:08:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:38,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:08:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:38,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:08:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:08:38,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 490 [2023-08-27 12:08:38,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 195.8) internal successors, (979), 5 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:38,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 490 [2023-08-27 12:08:38,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,779 INFO L124 PetriNetUnfolderBase]: 49/143 cut-off events. [2023-08-27 12:08:38,779 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-27 12:08:38,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 143 events. 49/143 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 528 event pairs, 17 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 360. Up to 86 conditions per place. [2023-08-27 12:08:38,780 INFO L140 encePairwiseOnDemand]: 487/490 looper letters, 27 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-08-27 12:08:38,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 184 flow [2023-08-27 12:08:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 12:08:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 12:08:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 799 transitions. [2023-08-27 12:08:38,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4076530612244898 [2023-08-27 12:08:38,782 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 799 transitions. [2023-08-27 12:08:38,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 799 transitions. [2023-08-27 12:08:38,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 799 transitions. [2023-08-27 12:08:38,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 199.75) internal successors, (799), 4 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,786 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,786 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 118 flow. Second operand 4 states and 799 transitions. [2023-08-27 12:08:38,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 184 flow [2023-08-27 12:08:38,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 177 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-27 12:08:38,787 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 109 flow [2023-08-27 12:08:38,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-08-27 12:08:38,787 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-08-27 12:08:38,787 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 109 flow [2023-08-27 12:08:38,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 195.8) internal successors, (979), 5 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 12:08:38,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,789 INFO L85 PathProgramCache]: Analyzing trace with hash -603171131, now seen corresponding path program 1 times [2023-08-27 12:08:38,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363905584] [2023-08-27 12:08:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:38,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:38,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363905584] [2023-08-27 12:08:38,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363905584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:38,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 12:08:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422813678] [2023-08-27 12:08:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:38,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 12:08:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 12:08:38,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-27 12:08:38,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 490 [2023-08-27 12:08:38,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 109 flow. Second operand has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:38,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 490 [2023-08-27 12:08:38,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:38,945 INFO L124 PetriNetUnfolderBase]: 62/160 cut-off events. [2023-08-27 12:08:38,945 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-08-27 12:08:38,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 160 events. 62/160 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 482 event pairs, 24 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 410. Up to 97 conditions per place. [2023-08-27 12:08:38,946 INFO L140 encePairwiseOnDemand]: 485/490 looper letters, 29 selfloop transitions, 7 changer transitions 1/38 dead transitions. [2023-08-27 12:08:38,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 211 flow [2023-08-27 12:08:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 12:08:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 12:08:38,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 741 transitions. [2023-08-27 12:08:38,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3780612244897959 [2023-08-27 12:08:38,948 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 741 transitions. [2023-08-27 12:08:38,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 741 transitions. [2023-08-27 12:08:38,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:38,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 741 transitions. [2023-08-27 12:08:38,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,952 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,952 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 109 flow. Second operand 4 states and 741 transitions. [2023-08-27 12:08:38,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 211 flow [2023-08-27 12:08:38,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 12:08:38,953 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 108 flow [2023-08-27 12:08:38,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-08-27 12:08:38,954 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-27 12:08:38,954 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 108 flow [2023-08-27 12:08:38,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:38,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:38,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:38,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 12:08:38,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:38,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1758701138, now seen corresponding path program 1 times [2023-08-27 12:08:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:38,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504308402] [2023-08-27 12:08:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:38,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:39,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:39,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504308402] [2023-08-27 12:08:39,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504308402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:39,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:39,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:08:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753439358] [2023-08-27 12:08:39,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:39,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:08:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:08:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:08:39,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 490 [2023-08-27 12:08:39,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:39,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 490 [2023-08-27 12:08:39,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:39,054 INFO L124 PetriNetUnfolderBase]: 38/111 cut-off events. [2023-08-27 12:08:39,055 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-27 12:08:39,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 111 events. 38/111 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 321 event pairs, 5 based on Foata normal form. 6/116 useless extension candidates. Maximal degree in co-relation 299. Up to 58 conditions per place. [2023-08-27 12:08:39,055 INFO L140 encePairwiseOnDemand]: 485/490 looper letters, 24 selfloop transitions, 4 changer transitions 2/34 dead transitions. [2023-08-27 12:08:39,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 186 flow [2023-08-27 12:08:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:08:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:08:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2023-08-27 12:08:39,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39727891156462586 [2023-08-27 12:08:39,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1168 transitions. [2023-08-27 12:08:39,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1168 transitions. [2023-08-27 12:08:39,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:39,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1168 transitions. [2023-08-27 12:08:39,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 490.0) internal successors, (3430), 7 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 490.0) internal successors, (3430), 7 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,063 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 108 flow. Second operand 6 states and 1168 transitions. [2023-08-27 12:08:39,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 186 flow [2023-08-27 12:08:39,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 177 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 12:08:39,064 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 103 flow [2023-08-27 12:08:39,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=103, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2023-08-27 12:08:39,065 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-27 12:08:39,065 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 103 flow [2023-08-27 12:08:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:39,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:39,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 12:08:39,066 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:39,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1628217393, now seen corresponding path program 1 times [2023-08-27 12:08:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:39,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72291805] [2023-08-27 12:08:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:39,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:39,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72291805] [2023-08-27 12:08:39,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72291805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:39,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:39,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 12:08:39,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372904031] [2023-08-27 12:08:39,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:39,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 12:08:39,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:39,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 12:08:39,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 12:08:39,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 490 [2023-08-27 12:08:39,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:39,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 490 [2023-08-27 12:08:39,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:39,248 INFO L124 PetriNetUnfolderBase]: 34/101 cut-off events. [2023-08-27 12:08:39,248 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-27 12:08:39,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 101 events. 34/101 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 261 event pairs, 5 based on Foata normal form. 6/106 useless extension candidates. Maximal degree in co-relation 277. Up to 38 conditions per place. [2023-08-27 12:08:39,249 INFO L140 encePairwiseOnDemand]: 484/490 looper letters, 25 selfloop transitions, 5 changer transitions 2/36 dead transitions. [2023-08-27 12:08:39,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 36 transitions, 197 flow [2023-08-27 12:08:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 12:08:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 12:08:39,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1352 transitions. [2023-08-27 12:08:39,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39416909620991253 [2023-08-27 12:08:39,252 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1352 transitions. [2023-08-27 12:08:39,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1352 transitions. [2023-08-27 12:08:39,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:39,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1352 transitions. [2023-08-27 12:08:39,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 193.14285714285714) internal successors, (1352), 7 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 490.0) internal successors, (3920), 8 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,258 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 490.0) internal successors, (3920), 8 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,258 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 103 flow. Second operand 7 states and 1352 transitions. [2023-08-27 12:08:39,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 36 transitions, 197 flow [2023-08-27 12:08:39,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 184 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-27 12:08:39,259 INFO L231 Difference]: Finished difference. Result has 40 places, 26 transitions, 98 flow [2023-08-27 12:08:39,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2023-08-27 12:08:39,260 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-27 12:08:39,260 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 98 flow [2023-08-27 12:08:39,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:39,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:39,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 12:08:39,260 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr8ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:39,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1348770547, now seen corresponding path program 1 times [2023-08-27 12:08:39,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:39,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233581189] [2023-08-27 12:08:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:39,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:39,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:39,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233581189] [2023-08-27 12:08:39,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233581189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:39,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:39,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:08:39,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808004446] [2023-08-27 12:08:39,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:39,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 12:08:39,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:39,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 12:08:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 12:08:39,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 490 [2023-08-27 12:08:39,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:39,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 490 [2023-08-27 12:08:39,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:39,380 INFO L124 PetriNetUnfolderBase]: 31/99 cut-off events. [2023-08-27 12:08:39,380 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-27 12:08:39,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 99 events. 31/99 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 21 based on Foata normal form. 3/100 useless extension candidates. Maximal degree in co-relation 270. Up to 73 conditions per place. [2023-08-27 12:08:39,380 INFO L140 encePairwiseOnDemand]: 486/490 looper letters, 16 selfloop transitions, 4 changer transitions 5/30 dead transitions. [2023-08-27 12:08:39,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 160 flow [2023-08-27 12:08:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 12:08:39,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 12:08:39,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 768 transitions. [2023-08-27 12:08:39,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39183673469387753 [2023-08-27 12:08:39,382 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 768 transitions. [2023-08-27 12:08:39,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 768 transitions. [2023-08-27 12:08:39,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:39,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 768 transitions. [2023-08-27 12:08:39,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,386 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,386 INFO L175 Difference]: Start difference. First operand has 40 places, 26 transitions, 98 flow. Second operand 4 states and 768 transitions. [2023-08-27 12:08:39,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 160 flow [2023-08-27 12:08:39,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 151 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 12:08:39,387 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 97 flow [2023-08-27 12:08:39,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-08-27 12:08:39,388 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-08-27 12:08:39,388 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 97 flow [2023-08-27 12:08:39,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:39,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:39,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 12:08:39,388 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr8ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-27 12:08:39,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:39,389 INFO L85 PathProgramCache]: Analyzing trace with hash 911161104, now seen corresponding path program 1 times [2023-08-27 12:08:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:39,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535270892] [2023-08-27 12:08:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:39,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:08:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:08:39,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:08:39,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535270892] [2023-08-27 12:08:39,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535270892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:08:39,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:08:39,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 12:08:39,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782507842] [2023-08-27 12:08:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:08:39,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 12:08:39,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:08:39,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 12:08:39,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-27 12:08:39,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 490 [2023-08-27 12:08:39,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:08:39,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 490 [2023-08-27 12:08:39,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:08:39,595 INFO L124 PetriNetUnfolderBase]: 13/52 cut-off events. [2023-08-27 12:08:39,595 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 12:08:39,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 52 events. 13/52 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 2 based on Foata normal form. 12/64 useless extension candidates. Maximal degree in co-relation 147. Up to 40 conditions per place. [2023-08-27 12:08:39,595 INFO L140 encePairwiseOnDemand]: 487/490 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-08-27 12:08:39,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 31 transitions, 174 flow [2023-08-27 12:08:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 12:08:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 12:08:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 738 transitions. [2023-08-27 12:08:39,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.376530612244898 [2023-08-27 12:08:39,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 738 transitions. [2023-08-27 12:08:39,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 738 transitions. [2023-08-27 12:08:39,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:08:39,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 738 transitions. [2023-08-27 12:08:39,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 490.0) internal successors, (2450), 5 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,601 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 97 flow. Second operand 4 states and 738 transitions. [2023-08-27 12:08:39,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 31 transitions, 174 flow [2023-08-27 12:08:39,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 12:08:39,601 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-27 12:08:39,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-27 12:08:39,602 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -12 predicate places. [2023-08-27 12:08:39,602 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-27 12:08:39,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:08:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2023-08-27 12:08:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2023-08-27 12:08:39,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (17 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONASSERT (16 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2023-08-27 12:08:39,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONASSERT (9 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (8 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONASSERT (7 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2023-08-27 12:08:39,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONASSERT (0 of 25 remaining) [2023-08-27 12:08:39,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 12:08:39,606 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:08:39,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:08:39,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:08:39,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:08:39 BasicIcfg [2023-08-27 12:08:39,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:08:39,612 INFO L158 Benchmark]: Toolchain (without parser) took 10987.91ms. Allocated memory was 402.7MB in the beginning and 664.8MB in the end (delta: 262.1MB). Free memory was 377.4MB in the beginning and 485.7MB in the end (delta: -108.3MB). Peak memory consumption was 153.7MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,612 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 402.7MB. Free memory is still 379.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:08:39,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.90ms. Allocated memory is still 402.7MB. Free memory was 377.4MB in the beginning and 357.3MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.09ms. Allocated memory is still 402.7MB. Free memory was 356.9MB in the beginning and 354.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,613 INFO L158 Benchmark]: Boogie Preprocessor took 22.05ms. Allocated memory is still 402.7MB. Free memory was 354.5MB in the beginning and 352.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,613 INFO L158 Benchmark]: RCFGBuilder took 490.99ms. Allocated memory is still 402.7MB. Free memory was 352.8MB in the beginning and 331.4MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,613 INFO L158 Benchmark]: TraceAbstraction took 10079.33ms. Allocated memory was 402.7MB in the beginning and 664.8MB in the end (delta: 262.1MB). Free memory was 330.7MB in the beginning and 485.7MB in the end (delta: -155.0MB). Peak memory consumption was 107.5MB. Max. memory is 16.0GB. [2023-08-27 12:08:39,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 402.7MB. Free memory is still 379.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 328.90ms. Allocated memory is still 402.7MB. Free memory was 377.4MB in the beginning and 357.3MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.09ms. Allocated memory is still 402.7MB. Free memory was 356.9MB in the beginning and 354.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.05ms. Allocated memory is still 402.7MB. Free memory was 354.5MB in the beginning and 352.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 490.99ms. Allocated memory is still 402.7MB. Free memory was 352.8MB in the beginning and 331.4MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 10079.33ms. Allocated memory was 402.7MB in the beginning and 664.8MB in the end (delta: 262.1MB). Free memory was 330.7MB in the beginning and 485.7MB in the end (delta: -155.0MB). Peak memory consumption was 107.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 236]: Unsoundness Warning unspecified type, defaulting to int C: short [236] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 210 PlacesBefore, 48 PlacesAfterwards, 221 TransitionsBefore, 49 TransitionsAfterwards, 14960 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 178 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 38 ConcurrentYvCompositions, 10 ChoiceCompositions, 267 TotalNumberOfCompositions, 25699 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15421, independent: 15016, independent conditional: 0, independent unconditional: 15016, dependent: 405, dependent conditional: 0, dependent unconditional: 405, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8591, independent: 8513, independent conditional: 0, independent unconditional: 8513, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15421, independent: 6503, independent conditional: 0, independent unconditional: 6503, dependent: 327, dependent conditional: 0, dependent unconditional: 327, unknown: 8591, unknown conditional: 0, unknown unconditional: 8591] , Statistics on independence cache: Total cache size (in pairs): 326, Positive cache size: 290, Positive conditional cache size: 0, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 309 locations, 25 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: 10.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 365 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 841 IncrementalHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 7 mSDtfsCounter, 841 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 12:08:39,636 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...