/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/parallel-ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 00:32:56,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 00:32:56,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 00:32:56,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 00:32:56,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 00:32:56,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 00:32:56,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 00:32:56,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 00:32:56,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 00:32:56,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 00:32:56,451 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 00:32:56,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 00:32:56,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 00:32:56,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 00:32:56,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 00:32:56,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 00:32:56,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 00:32:56,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 00:32:56,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 00:32:56,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 00:32:56,454 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 00:32:56,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 00:32:56,458 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 00:32:56,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 00:32:56,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 00:32:56,459 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 00:32:56,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 00:32:56,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 00:32:56,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 00:32:56,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 00:32:56,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 00:32:56,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 00:32:56,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 00:32:56,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 00:32:56,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 00:32:56,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 00:32:56,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 00:32:56,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 00:32:56,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 00:32:56,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 00:32:56,766 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 00:32:56,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-27 00:32:57,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 00:32:58,121 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 00:32:58,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-27 00:32:58,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96a5545a2/b76e7c79a6aa4c62a75abb697f30f623/FLAG80bccdacb [2023-08-27 00:32:58,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96a5545a2/b76e7c79a6aa4c62a75abb697f30f623 [2023-08-27 00:32:58,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 00:32:58,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 00:32:58,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 00:32:58,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 00:32:58,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 00:32:58,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723e9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58, skipping insertion in model container [2023-08-27 00:32:58,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,172 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 00:32:58,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 00:32:58,308 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 00:32:58,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 00:32:58,353 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 00:32:58,353 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 00:32:58,360 INFO L206 MainTranslator]: Completed translation [2023-08-27 00:32:58,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58 WrapperNode [2023-08-27 00:32:58,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 00:32:58,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 00:32:58,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 00:32:58,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 00:32:58,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,413 INFO L138 Inliner]: procedures = 21, calls = 41, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 134 [2023-08-27 00:32:58,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 00:32:58,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 00:32:58,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 00:32:58,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 00:32:58,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 00:32:58,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 00:32:58,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 00:32:58,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 00:32:58,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (1/1) ... [2023-08-27 00:32:58,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 00:32:58,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 00:32:58,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 00:32:58,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 00:32:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 00:32:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 00:32:58,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 00:32:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 00:32:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 00:32:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 00:32:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 00:32:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 00:32:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 00:32:58,540 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 00:32:58,655 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 00:32:58,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 00:32:58,932 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 00:32:59,015 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 00:32:59,015 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 00:32:59,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:32:59 BoogieIcfgContainer [2023-08-27 00:32:59,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 00:32:59,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 00:32:59,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 00:32:59,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 00:32:59,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:32:58" (1/3) ... [2023-08-27 00:32:59,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab796c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:32:59, skipping insertion in model container [2023-08-27 00:32:59,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:32:58" (2/3) ... [2023-08-27 00:32:59,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab796c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:32:59, skipping insertion in model container [2023-08-27 00:32:59,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:32:59" (3/3) ... [2023-08-27 00:32:59,029 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-08-27 00:32:59,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 00:32:59,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-27 00:32:59,046 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 00:32:59,105 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 00:32:59,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 224 flow [2023-08-27 00:32:59,171 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2023-08-27 00:32:59,171 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 00:32:59,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 102 events. 2/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-27 00:32:59,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 104 transitions, 224 flow [2023-08-27 00:32:59,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 198 flow [2023-08-27 00:32:59,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 00:32:59,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 93 transitions, 198 flow [2023-08-27 00:32:59,191 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 93 transitions, 198 flow [2023-08-27 00:32:59,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 198 flow [2023-08-27 00:32:59,214 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-08-27 00:32:59,215 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 00:32:59,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 2/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-27 00:32:59,216 INFO L119 LiptonReduction]: Number of co-enabled transitions 538 [2023-08-27 00:33:01,787 INFO L134 LiptonReduction]: Checked pairs total: 2915 [2023-08-27 00:33:01,787 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-27 00:33:01,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 00:33:01,805 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;@70cd3458, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 00:33:01,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-27 00:33:01,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 00:33:01,813 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 00:33:01,813 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 00:33:01,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:01,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 00:33:01,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:01,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash 417490, now seen corresponding path program 1 times [2023-08-27 00:33:01,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123003607] [2023-08-27 00:33:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123003607] [2023-08-27 00:33:02,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123003607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:02,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:02,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 00:33:02,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089199883] [2023-08-27 00:33:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:02,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:33:02,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:33:02,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:33:02,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:02,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:02,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:02,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:02,369 INFO L124 PetriNetUnfolderBase]: 161/328 cut-off events. [2023-08-27 00:33:02,370 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-27 00:33:02,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 328 events. 161/328 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1601 event pairs, 86 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 584. Up to 300 conditions per place. [2023-08-27 00:33:02,377 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 25 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-08-27 00:33:02,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 133 flow [2023-08-27 00:33:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:33:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:33:02,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-27 00:33:02,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5065176908752328 [2023-08-27 00:33:02,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:02,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,411 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 64 flow. Second operand 3 states and 272 transitions. [2023-08-27 00:33:02,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 133 flow [2023-08-27 00:33:02,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 123 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 00:33:02,416 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 81 flow [2023-08-27 00:33:02,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2023-08-27 00:33:02,420 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-27 00:33:02,420 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 81 flow [2023-08-27 00:33:02,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:02,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 00:33:02,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 00:33:02,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:02,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:02,422 INFO L85 PathProgramCache]: Analyzing trace with hash -444552387, now seen corresponding path program 1 times [2023-08-27 00:33:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981360108] [2023-08-27 00:33:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:02,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:02,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981360108] [2023-08-27 00:33:02,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981360108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:02,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:02,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 00:33:02,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472956641] [2023-08-27 00:33:02,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:02,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 00:33:02,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 00:33:02,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 00:33:02,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:02,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:02,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:02,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:02,620 INFO L124 PetriNetUnfolderBase]: 133/278 cut-off events. [2023-08-27 00:33:02,620 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-27 00:33:02,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 278 events. 133/278 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1271 event pairs, 18 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 203. Up to 148 conditions per place. [2023-08-27 00:33:02,625 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 32 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-27 00:33:02,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 177 flow [2023-08-27 00:33:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 00:33:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 00:33:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2023-08-27 00:33:02,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013966480446927 [2023-08-27 00:33:02,629 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 359 transitions. [2023-08-27 00:33:02,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 359 transitions. [2023-08-27 00:33:02,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:02,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 359 transitions. [2023-08-27 00:33:02,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,635 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,635 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 81 flow. Second operand 4 states and 359 transitions. [2023-08-27 00:33:02,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 177 flow [2023-08-27 00:33:02,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:33:02,637 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 80 flow [2023-08-27 00:33:02,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-27 00:33:02,638 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-27 00:33:02,639 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 80 flow [2023-08-27 00:33:02,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:02,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 00:33:02,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 00:33:02,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:02,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash -444552388, now seen corresponding path program 1 times [2023-08-27 00:33:02,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:02,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051547269] [2023-08-27 00:33:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:02,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:02,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:02,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051547269] [2023-08-27 00:33:02,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051547269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:02,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:02,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 00:33:02,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653877122] [2023-08-27 00:33:02,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:02,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:33:02,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:33:02,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:33:02,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:02,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:02,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:02,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:02,778 INFO L124 PetriNetUnfolderBase]: 105/222 cut-off events. [2023-08-27 00:33:02,778 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-08-27 00:33:02,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 222 events. 105/222 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 959 event pairs, 95 based on Foata normal form. 22/185 useless extension candidates. Maximal degree in co-relation 115. Up to 204 conditions per place. [2023-08-27 00:33:02,780 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 00:33:02,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 114 flow [2023-08-27 00:33:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:33:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:33:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-08-27 00:33:02,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4860335195530726 [2023-08-27 00:33:02,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-08-27 00:33:02,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-08-27 00:33:02,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:02,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-08-27 00:33:02,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,785 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 80 flow. Second operand 3 states and 261 transitions. [2023-08-27 00:33:02,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 114 flow [2023-08-27 00:33:02,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 101 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-27 00:33:02,787 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 61 flow [2023-08-27 00:33:02,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=61, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-27 00:33:02,787 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-27 00:33:02,788 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 61 flow [2023-08-27 00:33:02,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:02,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:02,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 00:33:02,789 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:02,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:02,789 INFO L85 PathProgramCache]: Analyzing trace with hash -975345002, now seen corresponding path program 1 times [2023-08-27 00:33:02,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:02,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516384279] [2023-08-27 00:33:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:02,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516384279] [2023-08-27 00:33:02,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516384279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:02,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:02,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 00:33:02,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64865396] [2023-08-27 00:33:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:02,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:33:02,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:33:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:33:02,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:02,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:02,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:02,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:02,901 INFO L124 PetriNetUnfolderBase]: 53/128 cut-off events. [2023-08-27 00:33:02,901 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-27 00:33:02,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 128 events. 53/128 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 413 event pairs, 22 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 253. Up to 72 conditions per place. [2023-08-27 00:33:02,903 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 27 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-08-27 00:33:02,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 142 flow [2023-08-27 00:33:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:33:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:33:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-27 00:33:02,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5065176908752328 [2023-08-27 00:33:02,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:02,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-27 00:33:02,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,909 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 61 flow. Second operand 3 states and 272 transitions. [2023-08-27 00:33:02,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 142 flow [2023-08-27 00:33:02,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:33:02,911 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 85 flow [2023-08-27 00:33:02,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-27 00:33:02,913 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2023-08-27 00:33:02,913 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 85 flow [2023-08-27 00:33:02,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:02,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:02,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 00:33:02,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:02,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1663460585, now seen corresponding path program 1 times [2023-08-27 00:33:02,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:02,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346607175] [2023-08-27 00:33:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:02,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:02,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346607175] [2023-08-27 00:33:02,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346607175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:02,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:02,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 00:33:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266493852] [2023-08-27 00:33:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:02,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 00:33:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 00:33:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 00:33:02,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:02,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:02,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:02,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:02,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:03,024 INFO L124 PetriNetUnfolderBase]: 49/120 cut-off events. [2023-08-27 00:33:03,025 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-27 00:33:03,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 120 events. 49/120 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 389 event pairs, 41 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 275. Up to 106 conditions per place. [2023-08-27 00:33:03,026 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 00:33:03,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 119 flow [2023-08-27 00:33:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 00:33:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 00:33:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-27 00:33:03,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823091247672253 [2023-08-27 00:33:03,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-27 00:33:03,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-27 00:33:03,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:03,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-27 00:33:03,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,031 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 85 flow. Second operand 3 states and 259 transitions. [2023-08-27 00:33:03,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 119 flow [2023-08-27 00:33:03,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:33:03,033 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 76 flow [2023-08-27 00:33:03,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=76, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-08-27 00:33:03,036 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-08-27 00:33:03,036 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 76 flow [2023-08-27 00:33:03,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:03,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:03,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 00:33:03,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:03,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:03,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1723398156, now seen corresponding path program 1 times [2023-08-27 00:33:03,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:03,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50661288] [2023-08-27 00:33:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:03,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50661288] [2023-08-27 00:33:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50661288] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:03,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 00:33:03,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168977448] [2023-08-27 00:33:03,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:03,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 00:33:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:03,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 00:33:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-27 00:33:03,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 179 [2023-08-27 00:33:03,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 76 flow. Second operand has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:03,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 179 [2023-08-27 00:33:03,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:03,317 INFO L124 PetriNetUnfolderBase]: 68/183 cut-off events. [2023-08-27 00:33:03,318 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-27 00:33:03,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 183 events. 68/183 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 757 event pairs, 12 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 383. Up to 63 conditions per place. [2023-08-27 00:33:03,319 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 32 selfloop transitions, 13 changer transitions 0/48 dead transitions. [2023-08-27 00:33:03,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 48 transitions, 229 flow [2023-08-27 00:33:03,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 00:33:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 00:33:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2023-08-27 00:33:03,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4664804469273743 [2023-08-27 00:33:03,321 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 501 transitions. [2023-08-27 00:33:03,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 501 transitions. [2023-08-27 00:33:03,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:03,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 501 transitions. [2023-08-27 00:33:03,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,325 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,326 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 76 flow. Second operand 6 states and 501 transitions. [2023-08-27 00:33:03,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 48 transitions, 229 flow [2023-08-27 00:33:03,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 00:33:03,327 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 148 flow [2023-08-27 00:33:03,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2023-08-27 00:33:03,328 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-27 00:33:03,328 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 148 flow [2023-08-27 00:33:03,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:03,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:03,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 00:33:03,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:03,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1893802174, now seen corresponding path program 2 times [2023-08-27 00:33:03,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672971131] [2023-08-27 00:33:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672971131] [2023-08-27 00:33:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672971131] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:03,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:03,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 00:33:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805788409] [2023-08-27 00:33:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:03,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 00:33:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 00:33:03,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 00:33:03,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 179 [2023-08-27 00:33:03,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:03,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 179 [2023-08-27 00:33:03,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:03,450 INFO L124 PetriNetUnfolderBase]: 64/168 cut-off events. [2023-08-27 00:33:03,451 INFO L125 PetriNetUnfolderBase]: For 245/257 co-relation queries the response was YES. [2023-08-27 00:33:03,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 168 events. 64/168 cut-off events. For 245/257 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 645 event pairs, 28 based on Foata normal form. 6/169 useless extension candidates. Maximal degree in co-relation 434. Up to 62 conditions per place. [2023-08-27 00:33:03,452 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 24 selfloop transitions, 9 changer transitions 0/36 dead transitions. [2023-08-27 00:33:03,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 220 flow [2023-08-27 00:33:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 00:33:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 00:33:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-08-27 00:33:03,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48743016759776536 [2023-08-27 00:33:03,453 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-08-27 00:33:03,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-08-27 00:33:03,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:03,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-08-27 00:33:03,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,456 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,456 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 148 flow. Second operand 4 states and 349 transitions. [2023-08-27 00:33:03,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 220 flow [2023-08-27 00:33:03,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 203 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-27 00:33:03,459 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 137 flow [2023-08-27 00:33:03,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-27 00:33:03,459 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-27 00:33:03,459 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 137 flow [2023-08-27 00:33:03,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:03,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:03,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 00:33:03,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:03,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:03,460 INFO L85 PathProgramCache]: Analyzing trace with hash 422321600, now seen corresponding path program 1 times [2023-08-27 00:33:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234933029] [2023-08-27 00:33:03,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:03,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:03,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234933029] [2023-08-27 00:33:03,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234933029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:03,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:03,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 00:33:03,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636283673] [2023-08-27 00:33:03,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:03,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 00:33:03,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 00:33:03,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 00:33:03,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-08-27 00:33:03,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 137 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:03,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-08-27 00:33:03,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:03,658 INFO L124 PetriNetUnfolderBase]: 54/155 cut-off events. [2023-08-27 00:33:03,659 INFO L125 PetriNetUnfolderBase]: For 267/275 co-relation queries the response was YES. [2023-08-27 00:33:03,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 155 events. 54/155 cut-off events. For 267/275 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 596 event pairs, 14 based on Foata normal form. 4/157 useless extension candidates. Maximal degree in co-relation 395. Up to 79 conditions per place. [2023-08-27 00:33:03,660 INFO L140 encePairwiseOnDemand]: 173/179 looper letters, 29 selfloop transitions, 8 changer transitions 0/40 dead transitions. [2023-08-27 00:33:03,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 237 flow [2023-08-27 00:33:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 00:33:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 00:33:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2023-08-27 00:33:03,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44692737430167595 [2023-08-27 00:33:03,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2023-08-27 00:33:03,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2023-08-27 00:33:03,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:03,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2023-08-27 00:33:03,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,666 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,666 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 137 flow. Second operand 6 states and 480 transitions. [2023-08-27 00:33:03,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 237 flow [2023-08-27 00:33:03,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 218 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-27 00:33:03,669 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 138 flow [2023-08-27 00:33:03,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-27 00:33:03,670 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-27 00:33:03,671 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 138 flow [2023-08-27 00:33:03,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:03,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:03,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 00:33:03,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:03,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:03,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1442140898, now seen corresponding path program 2 times [2023-08-27 00:33:03,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:03,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877845103] [2023-08-27 00:33:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:03,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:03,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877845103] [2023-08-27 00:33:03,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877845103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:03,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:03,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 00:33:03,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155947680] [2023-08-27 00:33:03,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:03,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 00:33:03,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 00:33:03,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 00:33:03,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-08-27 00:33:03,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:03,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-08-27 00:33:03,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:03,992 INFO L124 PetriNetUnfolderBase]: 113/248 cut-off events. [2023-08-27 00:33:03,992 INFO L125 PetriNetUnfolderBase]: For 358/358 co-relation queries the response was YES. [2023-08-27 00:33:03,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 248 events. 113/248 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 916 event pairs, 45 based on Foata normal form. 2/250 useless extension candidates. Maximal degree in co-relation 675. Up to 108 conditions per place. [2023-08-27 00:33:03,993 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 20 selfloop transitions, 3 changer transitions 30/53 dead transitions. [2023-08-27 00:33:03,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 343 flow [2023-08-27 00:33:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 00:33:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 00:33:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2023-08-27 00:33:03,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45251396648044695 [2023-08-27 00:33:03,995 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2023-08-27 00:33:03,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2023-08-27 00:33:03,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:03,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2023-08-27 00:33:03,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:03,999 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 138 flow. Second operand 6 states and 486 transitions. [2023-08-27 00:33:03,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 343 flow [2023-08-27 00:33:04,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 315 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-27 00:33:04,002 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 86 flow [2023-08-27 00:33:04,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-27 00:33:04,002 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-27 00:33:04,003 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 86 flow [2023-08-27 00:33:04,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 00:33:04,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 00:33:04,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 00:33:04,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-27 00:33:04,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 00:33:04,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1234031082, now seen corresponding path program 3 times [2023-08-27 00:33:04,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 00:33:04,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102466004] [2023-08-27 00:33:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 00:33:04,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 00:33:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 00:33:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 00:33:04,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 00:33:04,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102466004] [2023-08-27 00:33:04,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102466004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 00:33:04,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 00:33:04,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 00:33:04,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713958547] [2023-08-27 00:33:04,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 00:33:04,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 00:33:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 00:33:04,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 00:33:04,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 00:33:04,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-08-27 00:33:04,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 00:33:04,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-08-27 00:33:04,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 00:33:04,207 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-08-27 00:33:04,207 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-27 00:33:04,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 19 events. 6/19 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 58. Up to 8 conditions per place. [2023-08-27 00:33:04,208 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-27 00:33:04,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 11 transitions, 62 flow [2023-08-27 00:33:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 00:33:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 00:33:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 382 transitions. [2023-08-27 00:33:04,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42681564245810055 [2023-08-27 00:33:04,209 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 382 transitions. [2023-08-27 00:33:04,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 382 transitions. [2023-08-27 00:33:04,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 00:33:04,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 382 transitions. [2023-08-27 00:33:04,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,212 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,213 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 86 flow. Second operand 5 states and 382 transitions. [2023-08-27 00:33:04,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 11 transitions, 62 flow [2023-08-27 00:33:04,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 11 transitions, 51 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-27 00:33:04,213 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2023-08-27 00:33:04,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2023-08-27 00:33:04,215 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -10 predicate places. [2023-08-27 00:33:04,215 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2023-08-27 00:33:04,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 00:33:04,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2023-08-27 00:33:04,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (10 of 19 remaining) [2023-08-27 00:33:04,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2023-08-27 00:33:04,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2023-08-27 00:33:04,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 00:33:04,221 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-08-27 00:33:04,225 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 00:33:04,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 00:33:04,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:33:04 BasicIcfg [2023-08-27 00:33:04,230 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 00:33:04,230 INFO L158 Benchmark]: Toolchain (without parser) took 6084.43ms. Allocated memory was 356.5MB in the beginning and 463.5MB in the end (delta: 107.0MB). Free memory was 316.3MB in the beginning and 424.7MB in the end (delta: -108.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 00:33:04,230 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 356.5MB. Free memory is still 333.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 00:33:04,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.40ms. Allocated memory is still 356.5MB. Free memory was 315.8MB in the beginning and 305.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 00:33:04,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.30ms. Allocated memory is still 356.5MB. Free memory was 305.1MB in the beginning and 303.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 00:33:04,231 INFO L158 Benchmark]: Boogie Preprocessor took 34.42ms. Allocated memory is still 356.5MB. Free memory was 303.2MB in the beginning and 302.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 00:33:04,231 INFO L158 Benchmark]: RCFGBuilder took 573.15ms. Allocated memory is still 356.5MB. Free memory was 302.0MB in the beginning and 327.9MB in the end (delta: -25.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.0GB. [2023-08-27 00:33:04,232 INFO L158 Benchmark]: TraceAbstraction took 5205.95ms. Allocated memory was 356.5MB in the beginning and 463.5MB in the end (delta: 107.0MB). Free memory was 327.9MB in the beginning and 424.7MB in the end (delta: -96.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.0GB. [2023-08-27 00:33:04,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 356.5MB. Free memory is still 333.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 214.40ms. Allocated memory is still 356.5MB. Free memory was 315.8MB in the beginning and 305.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.30ms. Allocated memory is still 356.5MB. Free memory was 305.1MB in the beginning and 303.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.42ms. Allocated memory is still 356.5MB. Free memory was 303.2MB in the beginning and 302.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 573.15ms. Allocated memory is still 356.5MB. Free memory was 302.0MB in the beginning and 327.9MB in the end (delta: -25.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5205.95ms. Allocated memory was 356.5MB in the beginning and 463.5MB in the end (delta: 107.0MB). Free memory was 327.9MB in the beginning and 424.7MB in the end (delta: -96.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 98 PlacesBefore, 33 PlacesAfterwards, 93 TransitionsBefore, 26 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 2915 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1674, independent: 1484, independent conditional: 0, independent unconditional: 1484, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 292, independent: 268, independent conditional: 0, independent unconditional: 268, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1674, independent: 1216, independent conditional: 0, independent unconditional: 1216, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 292, unknown conditional: 0, unknown unconditional: 292] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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 5 procedures, 128 locations, 19 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: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 4 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=6, InterpolantAutomatonStates: 43, 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 407 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 00:33:04,249 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...