/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:39:08,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:39:08,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 23:39:08,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:39:08,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:39:08,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:39:08,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:39:08,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:39:08,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:39:08,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:39:08,933 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:39:08,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:39:08,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:39:08,935 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:39:08,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:39:08,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:39:08,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:39:08,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:39:08,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:39:08,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:39:08,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:39:08,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:39:08,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:39:08,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:39:08,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:39:08,938 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:39:08,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:39:08,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:39:08,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:39:08,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:39:08,940 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:39:09,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:39:09,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:39:09,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:39:09,250 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:39:09,251 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:39:09,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-26 23:39:10,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:39:10,690 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:39:10,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-26 23:39:10,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070b31996/c7cf4a0839ac45a3bc94324a5ec9a9d7/FLAG51a456694 [2023-08-26 23:39:10,710 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070b31996/c7cf4a0839ac45a3bc94324a5ec9a9d7 [2023-08-26 23:39:10,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:39:10,716 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:39:10,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:39:10,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:39:10,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:39:10,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:10,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0a0774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10, skipping insertion in model container [2023-08-26 23:39:10,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:10,749 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:39:10,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:39:10,943 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:39:10,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:39:10,991 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:39:10,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10 WrapperNode [2023-08-26 23:39:10,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:39:10,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:39:10,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:39:10,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:39:10,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,045 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 297 [2023-08-26 23:39:11,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:39:11,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:39:11,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:39:11,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:39:11,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:39:11,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:39:11,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:39:11,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:39:11,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (1/1) ... [2023-08-26 23:39:11,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:39:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:39:11,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 23:39:11,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 23:39:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:39:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:39:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:39:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:39:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:39:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 23:39:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:39:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:39:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:39:11,156 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:39:11,275 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:39:11,277 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:39:11,763 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:39:11,779 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:39:11,779 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:39:11,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:39:11 BoogieIcfgContainer [2023-08-26 23:39:11,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:39:11,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:39:11,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:39:11,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:39:11,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:39:10" (1/3) ... [2023-08-26 23:39:11,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65776614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:39:11, skipping insertion in model container [2023-08-26 23:39:11,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:39:10" (2/3) ... [2023-08-26 23:39:11,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65776614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:39:11, skipping insertion in model container [2023-08-26 23:39:11,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:39:11" (3/3) ... [2023-08-26 23:39:11,790 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2023-08-26 23:39:11,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:39:11,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-08-26 23:39:11,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:39:11,948 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 23:39:11,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 382 transitions, 788 flow [2023-08-26 23:39:12,097 INFO L124 PetriNetUnfolderBase]: 25/379 cut-off events. [2023-08-26 23:39:12,097 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:39:12,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 379 events. 25/379 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 880 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-26 23:39:12,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 382 transitions, 788 flow [2023-08-26 23:39:12,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 368 transitions, 754 flow [2023-08-26 23:39:12,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:39:12,126 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 368 transitions, 754 flow [2023-08-26 23:39:12,128 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 368 transitions, 754 flow [2023-08-26 23:39:12,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 368 transitions, 754 flow [2023-08-26 23:39:12,225 INFO L124 PetriNetUnfolderBase]: 25/368 cut-off events. [2023-08-26 23:39:12,225 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:39:12,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 368 events. 25/368 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 885 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-26 23:39:12,255 INFO L119 LiptonReduction]: Number of co-enabled transitions 56238 [2023-08-26 23:39:46,121 INFO L134 LiptonReduction]: Checked pairs total: 56186 [2023-08-26 23:39:46,121 INFO L136 LiptonReduction]: Total number of compositions: 516 [2023-08-26 23:39:46,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:39:46,138 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;@73f912e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:39:46,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2023-08-26 23:39:46,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:39:46,140 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 23:39:46,140 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:46,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:46,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:46,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:46,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1630310, now seen corresponding path program 1 times [2023-08-26 23:39:46,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:46,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869970267] [2023-08-26 23:39:46,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:46,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:46,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:46,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869970267] [2023-08-26 23:39:46,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869970267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:46,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:46,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844471074] [2023-08-26 23:39:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:46,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:46,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:46,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:46,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:46,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:46,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:46,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:46,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:47,969 INFO L124 PetriNetUnfolderBase]: 4205/6224 cut-off events. [2023-08-26 23:39:47,969 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2023-08-26 23:39:47,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12753 conditions, 6224 events. 4205/6224 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 36311 event pairs, 4205 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 11566. Up to 6224 conditions per place. [2023-08-26 23:39:48,000 INFO L140 encePairwiseOnDemand]: 883/898 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-26 23:39:48,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 170 flow [2023-08-26 23:39:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:48,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1126 transitions. [2023-08-26 23:39:48,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4179658500371195 [2023-08-26 23:39:48,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1126 transitions. [2023-08-26 23:39:48,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1126 transitions. [2023-08-26 23:39:48,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:48,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1126 transitions. [2023-08-26 23:39:48,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:48,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:48,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:48,042 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 122 flow. Second operand 3 states and 1126 transitions. [2023-08-26 23:39:48,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 170 flow [2023-08-26 23:39:48,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 23:39:48,050 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 84 flow [2023-08-26 23:39:48,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-26 23:39:48,054 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -18 predicate places. [2023-08-26 23:39:48,054 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 84 flow [2023-08-26 23:39:48,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:48,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:48,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:48,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:39:48,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:48,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1630419, now seen corresponding path program 1 times [2023-08-26 23:39:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:48,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081217106] [2023-08-26 23:39:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:48,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081217106] [2023-08-26 23:39:48,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081217106] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:48,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:48,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105198424] [2023-08-26 23:39:48,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:48,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:48,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:48,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:48,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:48,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:48,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:48,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:49,258 INFO L124 PetriNetUnfolderBase]: 3363/5002 cut-off events. [2023-08-26 23:39:49,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:49,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10089 conditions, 5002 events. 3363/5002 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 28238 event pairs, 3363 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 10083. Up to 5002 conditions per place. [2023-08-26 23:39:49,283 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-26 23:39:49,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 152 flow [2023-08-26 23:39:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:49,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-08-26 23:39:49,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41276911655530807 [2023-08-26 23:39:49,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-08-26 23:39:49,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-08-26 23:39:49,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:49,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-08-26 23:39:49,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:49,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:49,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:49,297 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 84 flow. Second operand 3 states and 1112 transitions. [2023-08-26 23:39:49,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 152 flow [2023-08-26 23:39:49,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:49,299 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 81 flow [2023-08-26 23:39:49,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=79, 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=81, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-08-26 23:39:49,300 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -19 predicate places. [2023-08-26 23:39:49,300 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 81 flow [2023-08-26 23:39:49,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:49,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:49,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:49,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:39:49,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:49,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:49,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1630420, now seen corresponding path program 1 times [2023-08-26 23:39:49,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:49,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614720381] [2023-08-26 23:39:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:49,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:49,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614720381] [2023-08-26 23:39:49,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614720381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:49,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:49,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040853554] [2023-08-26 23:39:49,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:49,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:49,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:49,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:49,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:49,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:49,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:50,292 INFO L124 PetriNetUnfolderBase]: 2615/3914 cut-off events. [2023-08-26 23:39:50,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:50,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7897 conditions, 3914 events. 2615/3914 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 21427 event pairs, 2615 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 7890. Up to 3914 conditions per place. [2023-08-26 23:39:50,310 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-26 23:39:50,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 145 flow [2023-08-26 23:39:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2023-08-26 23:39:50,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41202672605790647 [2023-08-26 23:39:50,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2023-08-26 23:39:50,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2023-08-26 23:39:50,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:50,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2023-08-26 23:39:50,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:50,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:50,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:50,323 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 81 flow. Second operand 3 states and 1110 transitions. [2023-08-26 23:39:50,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 145 flow [2023-08-26 23:39:50,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:50,324 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 78 flow [2023-08-26 23:39:50,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-26 23:39:50,326 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -20 predicate places. [2023-08-26 23:39:50,326 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 78 flow [2023-08-26 23:39:50,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:50,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:50,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:50,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 23:39:50,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:50,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1630421, now seen corresponding path program 1 times [2023-08-26 23:39:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:50,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955446793] [2023-08-26 23:39:50,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955446793] [2023-08-26 23:39:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955446793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:50,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622854630] [2023-08-26 23:39:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:50,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:50,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:50,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:50,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:50,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:50,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:51,073 INFO L124 PetriNetUnfolderBase]: 1961/2960 cut-off events. [2023-08-26 23:39:51,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:51,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5975 conditions, 2960 events. 1961/2960 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 15571 event pairs, 1961 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 5967. Up to 2960 conditions per place. [2023-08-26 23:39:51,087 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-26 23:39:51,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 138 flow [2023-08-26 23:39:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1108 transitions. [2023-08-26 23:39:51,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4112843355605048 [2023-08-26 23:39:51,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1108 transitions. [2023-08-26 23:39:51,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1108 transitions. [2023-08-26 23:39:51,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:51,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1108 transitions. [2023-08-26 23:39:51,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,102 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 78 flow. Second operand 3 states and 1108 transitions. [2023-08-26 23:39:51,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 138 flow [2023-08-26 23:39:51,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:51,104 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 75 flow [2023-08-26 23:39:51,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2023-08-26 23:39:51,105 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -21 predicate places. [2023-08-26 23:39:51,105 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 75 flow [2023-08-26 23:39:51,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:51,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:51,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 23:39:51,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:51,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1630383, now seen corresponding path program 1 times [2023-08-26 23:39:51,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:51,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897665707] [2023-08-26 23:39:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:51,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:51,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:51,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897665707] [2023-08-26 23:39:51,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897665707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:51,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:51,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814771371] [2023-08-26 23:39:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:51,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:51,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:51,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:51,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:51,717 INFO L124 PetriNetUnfolderBase]: 1471/2242 cut-off events. [2023-08-26 23:39:51,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:51,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4532 conditions, 2242 events. 1471/2242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 11257 event pairs, 1471 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 4523. Up to 2242 conditions per place. [2023-08-26 23:39:51,726 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-26 23:39:51,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 131 flow [2023-08-26 23:39:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:51,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2023-08-26 23:39:51,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105419450631032 [2023-08-26 23:39:51,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1106 transitions. [2023-08-26 23:39:51,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1106 transitions. [2023-08-26 23:39:51,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:51,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1106 transitions. [2023-08-26 23:39:51,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,739 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 75 flow. Second operand 3 states and 1106 transitions. [2023-08-26 23:39:51,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 131 flow [2023-08-26 23:39:51,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:51,741 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 72 flow [2023-08-26 23:39:51,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-26 23:39:51,741 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -22 predicate places. [2023-08-26 23:39:51,742 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 72 flow [2023-08-26 23:39:51,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:51,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:51,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:39:51,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:51,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:51,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1630382, now seen corresponding path program 1 times [2023-08-26 23:39:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:51,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452604414] [2023-08-26 23:39:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:51,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:51,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:51,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452604414] [2023-08-26 23:39:51,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452604414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:51,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:51,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:51,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780640342] [2023-08-26 23:39:51,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:51,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:51,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:51,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:51,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:51,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:51,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:51,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:51,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:51,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:52,187 INFO L124 PetriNetUnfolderBase]: 1047/1618 cut-off events. [2023-08-26 23:39:52,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:52,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3277 conditions, 1618 events. 1047/1618 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7738 event pairs, 1047 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 3267. Up to 1618 conditions per place. [2023-08-26 23:39:52,193 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-26 23:39:52,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 28 transitions, 124 flow [2023-08-26 23:39:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:52,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1104 transitions. [2023-08-26 23:39:52,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40979955456570155 [2023-08-26 23:39:52,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1104 transitions. [2023-08-26 23:39:52,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1104 transitions. [2023-08-26 23:39:52,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:52,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1104 transitions. [2023-08-26 23:39:52,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,207 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 72 flow. Second operand 3 states and 1104 transitions. [2023-08-26 23:39:52,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 28 transitions, 124 flow [2023-08-26 23:39:52,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:52,208 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 69 flow [2023-08-26 23:39:52,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-26 23:39:52,210 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-26 23:39:52,210 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 69 flow [2023-08-26 23:39:52,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:52,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:52,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 23:39:52,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:52,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1630385, now seen corresponding path program 1 times [2023-08-26 23:39:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:52,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785682330] [2023-08-26 23:39:52,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785682330] [2023-08-26 23:39:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785682330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:52,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:52,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221018860] [2023-08-26 23:39:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:52,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:52,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:52,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:52,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:52,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:52,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:52,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:52,502 INFO L124 PetriNetUnfolderBase]: 689/1088 cut-off events. [2023-08-26 23:39:52,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:52,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1088 events. 689/1088 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 4846 event pairs, 689 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 2199. Up to 1088 conditions per place. [2023-08-26 23:39:52,506 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-26 23:39:52,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 117 flow [2023-08-26 23:39:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1102 transitions. [2023-08-26 23:39:52,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40905716406829995 [2023-08-26 23:39:52,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1102 transitions. [2023-08-26 23:39:52,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1102 transitions. [2023-08-26 23:39:52,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:52,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1102 transitions. [2023-08-26 23:39:52,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,516 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 69 flow. Second operand 3 states and 1102 transitions. [2023-08-26 23:39:52,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 117 flow [2023-08-26 23:39:52,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:52,517 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 66 flow [2023-08-26 23:39:52,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-08-26 23:39:52,518 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -24 predicate places. [2023-08-26 23:39:52,518 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 66 flow [2023-08-26 23:39:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:52,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:39:52,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 23:39:52,519 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:52,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:52,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1630396, now seen corresponding path program 1 times [2023-08-26 23:39:52,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:52,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975116247] [2023-08-26 23:39:52,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:52,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975116247] [2023-08-26 23:39:52,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975116247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:52,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:52,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:52,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667130012] [2023-08-26 23:39:52,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:52,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:52,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:52,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:52,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:52,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:52,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:52,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:52,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:52,771 INFO L124 PetriNetUnfolderBase]: 405/664 cut-off events. [2023-08-26 23:39:52,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:52,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 664 events. 405/664 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2717 event pairs, 405 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 1341. Up to 664 conditions per place. [2023-08-26 23:39:52,773 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-26 23:39:52,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 110 flow [2023-08-26 23:39:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1100 transitions. [2023-08-26 23:39:52,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083147735708983 [2023-08-26 23:39:52,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1100 transitions. [2023-08-26 23:39:52,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1100 transitions. [2023-08-26 23:39:52,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:52,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1100 transitions. [2023-08-26 23:39:52,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.6666666666667) internal successors, (1100), 3 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,783 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 66 flow. Second operand 3 states and 1100 transitions. [2023-08-26 23:39:52,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 110 flow [2023-08-26 23:39:52,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 109 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:52,784 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 63 flow [2023-08-26 23:39:52,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-08-26 23:39:52,785 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -25 predicate places. [2023-08-26 23:39:52,785 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 63 flow [2023-08-26 23:39:52,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:52,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:39:52,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 23:39:52,786 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:52,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685277, now seen corresponding path program 1 times [2023-08-26 23:39:52,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:52,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584604882] [2023-08-26 23:39:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:52,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:52,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:52,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584604882] [2023-08-26 23:39:52,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584604882] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:52,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072112855] [2023-08-26 23:39:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:52,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:52,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:52,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:52,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:52,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:52,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:52,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:52,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:52,993 INFO L124 PetriNetUnfolderBase]: 277/464 cut-off events. [2023-08-26 23:39:52,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:52,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 464 events. 277/464 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1750 event pairs, 277 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 939. Up to 464 conditions per place. [2023-08-26 23:39:52,995 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-26 23:39:52,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 22 transitions, 103 flow [2023-08-26 23:39:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1098 transitions. [2023-08-26 23:39:52,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40757238307349664 [2023-08-26 23:39:52,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1098 transitions. [2023-08-26 23:39:52,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1098 transitions. [2023-08-26 23:39:52,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:52,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1098 transitions. [2023-08-26 23:39:53,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,018 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 63 flow. Second operand 3 states and 1098 transitions. [2023-08-26 23:39:53,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 22 transitions, 103 flow [2023-08-26 23:39:53,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 22 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:53,019 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 60 flow [2023-08-26 23:39:53,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2023-08-26 23:39:53,019 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -26 predicate places. [2023-08-26 23:39:53,019 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 60 flow [2023-08-26 23:39:53,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:53,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:39:53,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 23:39:53,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:53,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:53,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685299, now seen corresponding path program 1 times [2023-08-26 23:39:53,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:53,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453244408] [2023-08-26 23:39:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:53,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:53,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:53,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453244408] [2023-08-26 23:39:53,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453244408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:53,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:53,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:53,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299086580] [2023-08-26 23:39:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:53,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:53,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:53,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:53,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:53,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:53,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:53,229 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-26 23:39:53,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:53,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 300 events. 173/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 997 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 609. Up to 300 conditions per place. [2023-08-26 23:39:53,231 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-26 23:39:53,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 20 transitions, 96 flow [2023-08-26 23:39:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1096 transitions. [2023-08-26 23:39:53,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40682999257609503 [2023-08-26 23:39:53,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1096 transitions. [2023-08-26 23:39:53,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1096 transitions. [2023-08-26 23:39:53,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:53,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1096 transitions. [2023-08-26 23:39:53,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,240 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 60 flow. Second operand 3 states and 1096 transitions. [2023-08-26 23:39:53,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 20 transitions, 96 flow [2023-08-26 23:39:53,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:53,242 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 57 flow [2023-08-26 23:39:53,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2023-08-26 23:39:53,244 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -27 predicate places. [2023-08-26 23:39:53,245 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 57 flow [2023-08-26 23:39:53,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:53,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:39:53,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 23:39:53,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:53,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:53,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685300, now seen corresponding path program 1 times [2023-08-26 23:39:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:53,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368043344] [2023-08-26 23:39:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:53,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:53,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368043344] [2023-08-26 23:39:53,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368043344] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:53,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:53,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:53,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044927339] [2023-08-26 23:39:53,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:53,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:53,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:53,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:53,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:53,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:53,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:53,367 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-26 23:39:53,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:53,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 172 events. 93/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 472 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 351. Up to 172 conditions per place. [2023-08-26 23:39:53,368 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-26 23:39:53,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 89 flow [2023-08-26 23:39:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2023-08-26 23:39:53,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4060876020786934 [2023-08-26 23:39:53,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1094 transitions. [2023-08-26 23:39:53,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1094 transitions. [2023-08-26 23:39:53,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:53,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1094 transitions. [2023-08-26 23:39:53,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,378 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 57 flow. Second operand 3 states and 1094 transitions. [2023-08-26 23:39:53,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 89 flow [2023-08-26 23:39:53,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 18 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:53,380 INFO L231 Difference]: Finished difference. Result has 34 places, 18 transitions, 54 flow [2023-08-26 23:39:53,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=34, PETRI_TRANSITIONS=18} [2023-08-26 23:39:53,380 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -28 predicate places. [2023-08-26 23:39:53,380 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 18 transitions, 54 flow [2023-08-26 23:39:53,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:53,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:39:53,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 23:39:53,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:53,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:53,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685297, now seen corresponding path program 1 times [2023-08-26 23:39:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329666869] [2023-08-26 23:39:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:53,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:53,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329666869] [2023-08-26 23:39:53,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329666869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:53,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:53,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:39:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343249123] [2023-08-26 23:39:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:39:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:39:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:39:53,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-26 23:39:53,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 18 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:53,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-26 23:39:53,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:53,474 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-26 23:39:53,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:39:53,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 80 events. 37/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place. [2023-08-26 23:39:53,475 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-26 23:39:53,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 82 flow [2023-08-26 23:39:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:39:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:39:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2023-08-26 23:39:53,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053452115812918 [2023-08-26 23:39:53,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2023-08-26 23:39:53,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2023-08-26 23:39:53,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:53,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2023-08-26 23:39:53,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,485 INFO L175 Difference]: Start difference. First operand has 34 places, 18 transitions, 54 flow. Second operand 3 states and 1092 transitions. [2023-08-26 23:39:53,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 82 flow [2023-08-26 23:39:53,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 16 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:53,485 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 51 flow [2023-08-26 23:39:53,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2023-08-26 23:39:53,487 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -29 predicate places. [2023-08-26 23:39:53,487 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 51 flow [2023-08-26 23:39:53,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:53,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:53,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:39:53,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 23:39:53,488 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:53,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1313744900, now seen corresponding path program 1 times [2023-08-26 23:39:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:53,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276142879] [2023-08-26 23:39:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:55,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:55,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276142879] [2023-08-26 23:39:55,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276142879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:55,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:55,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:39:55,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109073897] [2023-08-26 23:39:55,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:55,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:39:55,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:39:55,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:39:55,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:39:55,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:55,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:55,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:39:55,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:55,862 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-26 23:39:55,862 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 23:39:55,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 335 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 218. Up to 48 conditions per place. [2023-08-26 23:39:55,863 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-26 23:39:55,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 205 flow [2023-08-26 23:39:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:39:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:39:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-26 23:39:55,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3769487750556793 [2023-08-26 23:39:55,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-26 23:39:55,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-26 23:39:55,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:55,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-26 23:39:55,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:55,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:55,879 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:55,880 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 51 flow. Second operand 6 states and 2031 transitions. [2023-08-26 23:39:55,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 205 flow [2023-08-26 23:39:55,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:55,881 INFO L231 Difference]: Finished difference. Result has 39 places, 18 transitions, 69 flow [2023-08-26 23:39:55,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2023-08-26 23:39:55,881 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-26 23:39:55,882 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 69 flow [2023-08-26 23:39:55,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:55,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:55,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:39:55,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 23:39:55,882 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:55,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:55,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1766429654, now seen corresponding path program 2 times [2023-08-26 23:39:55,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454096036] [2023-08-26 23:39:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:57,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:57,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454096036] [2023-08-26 23:39:57,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454096036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:57,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:57,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:39:57,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635216559] [2023-08-26 23:39:57,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:57,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:39:57,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:57,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:39:57,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:39:57,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:39:57,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:57,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:57,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:39:57,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:57,524 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-26 23:39:57,524 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-26 23:39:57,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 401 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 291. Up to 45 conditions per place. [2023-08-26 23:39:57,525 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-26 23:39:57,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 247 flow [2023-08-26 23:39:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:39:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:39:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2032 transitions. [2023-08-26 23:39:57,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3771343726800297 [2023-08-26 23:39:57,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2032 transitions. [2023-08-26 23:39:57,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2032 transitions. [2023-08-26 23:39:57,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:57,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2032 transitions. [2023-08-26 23:39:57,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:57,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:57,540 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:57,541 INFO L175 Difference]: Start difference. First operand has 39 places, 18 transitions, 69 flow. Second operand 6 states and 2032 transitions. [2023-08-26 23:39:57,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 247 flow [2023-08-26 23:39:57,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 243 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 23:39:57,542 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 107 flow [2023-08-26 23:39:57,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=107, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-08-26 23:39:57,543 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2023-08-26 23:39:57,543 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 107 flow [2023-08-26 23:39:57,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:57,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:57,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:39:57,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 23:39:57,544 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:57,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1116597358, now seen corresponding path program 3 times [2023-08-26 23:39:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:57,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125228715] [2023-08-26 23:39:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:57,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:39:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:39:58,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:39:58,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125228715] [2023-08-26 23:39:58,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125228715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:39:58,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:39:58,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:39:58,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599424488] [2023-08-26 23:39:58,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:39:58,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:39:58,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:39:58,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:39:58,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:39:58,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:39:58,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:58,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:39:58,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:39:58,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:39:58,870 INFO L124 PetriNetUnfolderBase]: 33/101 cut-off events. [2023-08-26 23:39:58,871 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2023-08-26 23:39:58,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 101 events. 33/101 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 7 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 324. Up to 48 conditions per place. [2023-08-26 23:39:58,871 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 23 selfloop transitions, 8 changer transitions 10/41 dead transitions. [2023-08-26 23:39:58,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 255 flow [2023-08-26 23:39:58,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 23:39:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 23:39:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1693 transitions. [2023-08-26 23:39:58,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3770601336302895 [2023-08-26 23:39:58,876 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1693 transitions. [2023-08-26 23:39:58,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1693 transitions. [2023-08-26 23:39:58,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:39:58,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1693 transitions. [2023-08-26 23:39:58,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 338.6) internal successors, (1693), 5 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:58,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:58,884 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:58,884 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 107 flow. Second operand 5 states and 1693 transitions. [2023-08-26 23:39:58,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 255 flow [2023-08-26 23:39:58,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-26 23:39:58,886 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 126 flow [2023-08-26 23:39:58,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2023-08-26 23:39:58,887 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -14 predicate places. [2023-08-26 23:39:58,887 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 126 flow [2023-08-26 23:39:58,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:39:58,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:39:58,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:39:58,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 23:39:58,888 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:39:58,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:39:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1213169028, now seen corresponding path program 4 times [2023-08-26 23:39:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:39:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152147277] [2023-08-26 23:39:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:39:58,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:39:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:00,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:00,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152147277] [2023-08-26 23:40:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152147277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:00,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:00,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:40:00,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284486340] [2023-08-26 23:40:00,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:00,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:40:00,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:00,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:40:00,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:40:00,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:40:00,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:00,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:00,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:40:00,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:00,210 INFO L124 PetriNetUnfolderBase]: 17/57 cut-off events. [2023-08-26 23:40:00,211 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-08-26 23:40:00,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 57 events. 17/57 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 2 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 204. Up to 22 conditions per place. [2023-08-26 23:40:00,211 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 18 selfloop transitions, 5 changer transitions 9/32 dead transitions. [2023-08-26 23:40:00,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 32 transitions, 217 flow [2023-08-26 23:40:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 23:40:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 23:40:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1685 transitions. [2023-08-26 23:40:00,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3752783964365256 [2023-08-26 23:40:00,216 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1685 transitions. [2023-08-26 23:40:00,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1685 transitions. [2023-08-26 23:40:00,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:00,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1685 transitions. [2023-08-26 23:40:00,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 337.0) internal successors, (1685), 5 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:00,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:00,223 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:00,224 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 126 flow. Second operand 5 states and 1685 transitions. [2023-08-26 23:40:00,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 32 transitions, 217 flow [2023-08-26 23:40:00,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 32 transitions, 192 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-26 23:40:00,225 INFO L231 Difference]: Finished difference. Result has 46 places, 19 transitions, 102 flow [2023-08-26 23:40:00,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=46, PETRI_TRANSITIONS=19} [2023-08-26 23:40:00,226 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2023-08-26 23:40:00,226 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 19 transitions, 102 flow [2023-08-26 23:40:00,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:00,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:00,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:00,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 23:40:00,227 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:40:00,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:00,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2053080942, now seen corresponding path program 5 times [2023-08-26 23:40:00,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:00,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22202070] [2023-08-26 23:40:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:00,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:01,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:01,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22202070] [2023-08-26 23:40:01,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22202070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:01,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:01,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:40:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101902904] [2023-08-26 23:40:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:01,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:40:01,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:01,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:40:01,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:40:01,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:40:01,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 19 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:01,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:01,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:40:01,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:01,673 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-26 23:40:01,673 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-26 23:40:01,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 40 events. 8/40 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 129. Up to 19 conditions per place. [2023-08-26 23:40:01,674 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-26 23:40:01,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 30 transitions, 187 flow [2023-08-26 23:40:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:40:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:40:01,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2017 transitions. [2023-08-26 23:40:01,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37435040831477356 [2023-08-26 23:40:01,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2017 transitions. [2023-08-26 23:40:01,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2017 transitions. [2023-08-26 23:40:01,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:01,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2017 transitions. [2023-08-26 23:40:01,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:01,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:01,688 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:01,688 INFO L175 Difference]: Start difference. First operand has 46 places, 19 transitions, 102 flow. Second operand 6 states and 2017 transitions. [2023-08-26 23:40:01,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 30 transitions, 187 flow [2023-08-26 23:40:01,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 30 transitions, 162 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-26 23:40:01,689 INFO L231 Difference]: Finished difference. Result has 45 places, 16 transitions, 69 flow [2023-08-26 23:40:01,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=45, PETRI_TRANSITIONS=16} [2023-08-26 23:40:01,690 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -17 predicate places. [2023-08-26 23:40:01,690 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 16 transitions, 69 flow [2023-08-26 23:40:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:01,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:01,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 23:40:01,691 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-26 23:40:01,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1135130752, now seen corresponding path program 6 times [2023-08-26 23:40:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497354570] [2023-08-26 23:40:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:02,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:02,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497354570] [2023-08-26 23:40:02,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497354570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:02,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:02,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:40:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64985789] [2023-08-26 23:40:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:02,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:40:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:40:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:40:02,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-26 23:40:02,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 16 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:02,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:02,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-26 23:40:02,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:02,957 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-26 23:40:02,957 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-26 23:40:02,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 21 events. 3/21 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2023-08-26 23:40:02,957 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-26 23:40:02,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 18 transitions, 107 flow [2023-08-26 23:40:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:40:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:40:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2005 transitions. [2023-08-26 23:40:02,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37212323682256865 [2023-08-26 23:40:02,963 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2005 transitions. [2023-08-26 23:40:02,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2005 transitions. [2023-08-26 23:40:02,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:02,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2005 transitions. [2023-08-26 23:40:02,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:02,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:02,973 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:02,973 INFO L175 Difference]: Start difference. First operand has 45 places, 16 transitions, 69 flow. Second operand 6 states and 2005 transitions. [2023-08-26 23:40:02,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 18 transitions, 107 flow [2023-08-26 23:40:02,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 18 transitions, 91 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-26 23:40:02,974 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-26 23:40:02,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-26 23:40:02,975 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -22 predicate places. [2023-08-26 23:40:02,975 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-26 23:40:02,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:02,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 76 remaining) [2023-08-26 23:40:02,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 76 remaining) [2023-08-26 23:40:02,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 76 remaining) [2023-08-26 23:40:02,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 76 remaining) [2023-08-26 23:40:02,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 76 remaining) [2023-08-26 23:40:02,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 76 remaining) [2023-08-26 23:40:02,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 76 remaining) [2023-08-26 23:40:02,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 76 remaining) [2023-08-26 23:40:02,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 76 remaining) [2023-08-26 23:40:02,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 76 remaining) [2023-08-26 23:40:02,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 76 remaining) [2023-08-26 23:40:02,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 76 remaining) [2023-08-26 23:40:02,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (39 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 76 remaining) [2023-08-26 23:40:02,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 76 remaining) [2023-08-26 23:40:02,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 76 remaining) [2023-08-26 23:40:02,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 76 remaining) [2023-08-26 23:40:02,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 76 remaining) [2023-08-26 23:40:02,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 76 remaining) [2023-08-26 23:40:02,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 76 remaining) [2023-08-26 23:40:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 23:40:02,988 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:02,993 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:40:02,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:40:02,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:40:02 BasicIcfg [2023-08-26 23:40:02,996 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:40:02,997 INFO L158 Benchmark]: Toolchain (without parser) took 52280.47ms. Allocated memory was 375.4MB in the beginning and 1.3GB in the end (delta: 952.1MB). Free memory was 351.9MB in the beginning and 1.1GB in the end (delta: -711.4MB). Peak memory consumption was 239.8MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,997 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 375.4MB. Free memory is still 351.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:40:02,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.38ms. Allocated memory is still 375.4MB. Free memory was 351.6MB in the beginning and 340.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.66ms. Allocated memory is still 375.4MB. Free memory was 340.2MB in the beginning and 337.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,997 INFO L158 Benchmark]: Boogie Preprocessor took 39.74ms. Allocated memory is still 375.4MB. Free memory was 337.5MB in the beginning and 335.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,998 INFO L158 Benchmark]: RCFGBuilder took 696.47ms. Allocated memory is still 375.4MB. Free memory was 335.7MB in the beginning and 307.5MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,998 INFO L158 Benchmark]: TraceAbstraction took 51210.51ms. Allocated memory was 375.4MB in the beginning and 1.3GB in the end (delta: 952.1MB). Free memory was 306.7MB in the beginning and 1.1GB in the end (delta: -756.7MB). Peak memory consumption was 193.7MB. Max. memory is 16.0GB. [2023-08-26 23:40:02,999 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 375.4MB. Free memory is still 351.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 270.38ms. Allocated memory is still 375.4MB. Free memory was 351.6MB in the beginning and 340.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.66ms. Allocated memory is still 375.4MB. Free memory was 340.2MB in the beginning and 337.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.74ms. Allocated memory is still 375.4MB. Free memory was 337.5MB in the beginning and 335.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 696.47ms. Allocated memory is still 375.4MB. Free memory was 335.7MB in the beginning and 307.5MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 51210.51ms. Allocated memory was 375.4MB in the beginning and 1.3GB in the end (delta: 952.1MB). Free memory was 306.7MB in the beginning and 1.1GB in the end (delta: -756.7MB). Peak memory consumption was 193.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0s, 353 PlacesBefore, 62 PlacesAfterwards, 368 TransitionsBefore, 52 TransitionsAfterwards, 56238 CoEnabledTransitionPairs, 10 FixpointIterations, 69 TrivialSequentialCompositions, 356 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 63 ConcurrentYvCompositions, 25 ChoiceCompositions, 516 TotalNumberOfCompositions, 56186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 56186, independent: 56186, independent conditional: 0, independent unconditional: 56186, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32456, independent: 32456, independent conditional: 0, independent unconditional: 32456, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 56186, independent: 23730, independent conditional: 0, independent unconditional: 23730, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 32456, unknown conditional: 0, unknown unconditional: 32456] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 0, Positive unconditional cache size: 198, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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 7 procedures, 613 locations, 76 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: 51.0s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 34.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 486 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 486 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 697 IncrementalHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 697 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=15, InterpolantAutomatonStates: 70, 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, 0.7s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 37 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 23:40:03,023 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...