/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:14:58,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:14:58,620 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 06:14:58,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:14:58,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:14:58,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:14:58,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:14:58,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:14:58,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:14:58,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:14:58,664 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:14:58,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:14:58,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:14:58,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:14:58,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:14:58,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:14:58,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:14:58,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:14:58,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:14:58,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:14:58,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:14:58,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:14:58,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:14:58,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:14:58,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:14:58,674 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:14:58,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:14:58,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:14:58,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:14:58,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:14:58,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:14:58,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:14:58,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:14:58,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:14:58,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:14:58,676 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:14:58,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:14:58,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:14:58,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:14:58,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:14:58,984 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:14:58,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-08-27 06:15:00,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:15:00,322 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:15:00,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-08-27 06:15:00,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d15c75c5/8b9142b990614fa7a13c61138ded4144/FLAGb951463eb [2023-08-27 06:15:00,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d15c75c5/8b9142b990614fa7a13c61138ded4144 [2023-08-27 06:15:00,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:15:00,346 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:15:00,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:00,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:15:00,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:15:00,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22000f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00, skipping insertion in model container [2023-08-27 06:15:00,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,381 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:15:00,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:00,574 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:15:00,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:00,618 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:15:00,618 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:15:00,626 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:15:00,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00 WrapperNode [2023-08-27 06:15:00,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:00,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:00,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:15:00,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:15:00,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,688 INFO L138 Inliner]: procedures = 22, calls = 36, calls flagged for inlining = 16, calls inlined = 30, statements flattened = 376 [2023-08-27 06:15:00,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:00,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:15:00,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:15:00,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:15:00,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:15:00,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:15:00,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:15:00,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:15:00,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (1/1) ... [2023-08-27 06:15:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:15:00,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:15:00,778 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 06:15:00,805 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 06:15:00,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:15:00,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:15:00,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:15:00,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:15:00,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:15:00,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:15:00,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:15:00,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:15:00,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:15:00,824 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 06:15:00,944 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:15:00,945 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:15:01,450 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:15:04,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:15:04,881 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 06:15:04,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:04 BoogieIcfgContainer [2023-08-27 06:15:04,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:15:04,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:15:04,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:15:04,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:15:04,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:15:00" (1/3) ... [2023-08-27 06:15:04,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4925cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:04, skipping insertion in model container [2023-08-27 06:15:04,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:00" (2/3) ... [2023-08-27 06:15:04,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4925cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:04, skipping insertion in model container [2023-08-27 06:15:04,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:04" (3/3) ... [2023-08-27 06:15:04,890 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2023-08-27 06:15:04,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:15:04,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-08-27 06:15:04,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:15:05,821 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 06:15:05,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 164 transitions, 344 flow [2023-08-27 06:15:06,079 INFO L124 PetriNetUnfolderBase]: 3/162 cut-off events. [2023-08-27 06:15:06,080 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:15:06,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 162 events. 3/162 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 331 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-08-27 06:15:06,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 164 transitions, 344 flow [2023-08-27 06:15:06,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 153 transitions, 318 flow [2023-08-27 06:15:06,091 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:15:06,098 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 153 transitions, 318 flow [2023-08-27 06:15:06,100 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 153 transitions, 318 flow [2023-08-27 06:15:06,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 153 transitions, 318 flow [2023-08-27 06:15:06,336 INFO L124 PetriNetUnfolderBase]: 3/153 cut-off events. [2023-08-27 06:15:06,336 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:15:06,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 153 events. 3/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 330 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-27 06:15:06,338 INFO L119 LiptonReduction]: Number of co-enabled transitions 2268 [2023-08-27 06:15:16,491 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 1096 DAG size of output: 459 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 06:15:29,821 INFO L134 LiptonReduction]: Checked pairs total: 1619 [2023-08-27 06:15:29,821 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-27 06:15:29,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:15:29,837 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;@38e03cee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:15:29,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 99 error locations. [2023-08-27 06:15:29,839 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:15:29,839 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 06:15:29,839 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:15:29,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:29,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:29,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:29,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:29,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1789880, now seen corresponding path program 1 times [2023-08-27 06:15:29,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:29,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016609075] [2023-08-27 06:15:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:29,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:15:30,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:30,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016609075] [2023-08-27 06:15:30,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016609075] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:30,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:30,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926554723] [2023-08-27 06:15:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:30,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 06:15:30,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:30,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 06:15:30,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 06:15:30,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 267 [2023-08-27 06:15:30,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 130 flow. Second operand has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 06:15:30,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:30,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 267 [2023-08-27 06:15:30,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:32,860 INFO L124 PetriNetUnfolderBase]: 969/1692 cut-off events. [2023-08-27 06:15:32,860 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-27 06:15:32,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3445 conditions, 1692 events. 969/1692 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 10730 event pairs, 969 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 3272. Up to 1693 conditions per place. [2023-08-27 06:15:32,872 INFO L140 encePairwiseOnDemand]: 251/267 looper letters, 43 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2023-08-27 06:15:32,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 43 transitions, 184 flow [2023-08-27 06:15:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 06:15:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 06:15:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2023-08-27 06:15:32,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5074906367041199 [2023-08-27 06:15:32,883 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 271 transitions. [2023-08-27 06:15:32,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 271 transitions. [2023-08-27 06:15:32,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:32,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 271 transitions. [2023-08-27 06:15:32,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 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 06:15:32,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 06:15:32,893 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 06:15:32,895 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 130 flow. Second operand 2 states and 271 transitions. [2023-08-27 06:15:32,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 43 transitions, 184 flow [2023-08-27 06:15:32,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 06:15:32,900 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 90 flow [2023-08-27 06:15:32,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-08-27 06:15:32,905 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -19 predicate places. [2023-08-27 06:15:32,906 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 90 flow [2023-08-27 06:15:32,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 06:15:32,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:32,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:32,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:15:32,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:32,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1789881, now seen corresponding path program 1 times [2023-08-27 06:15:32,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432981729] [2023-08-27 06:15:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:32,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:32,994 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 06:15:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432981729] [2023-08-27 06:15:32,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432981729] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:32,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:32,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:32,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771882676] [2023-08-27 06:15:32,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:32,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:32,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:32,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:32,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:32,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:32,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:32,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:32,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:32,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:35,259 INFO L124 PetriNetUnfolderBase]: 864/1513 cut-off events. [2023-08-27 06:15:35,259 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 06:15:35,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3047 conditions, 1513 events. 864/1513 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 9367 event pairs, 864 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 3044. Up to 1513 conditions per place. [2023-08-27 06:15:35,273 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 40 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-08-27 06:15:35,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 168 flow [2023-08-27 06:15:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-08-27 06:15:35,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4431960049937578 [2023-08-27 06:15:35,279 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-08-27 06:15:35,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-08-27 06:15:35,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:35,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-08-27 06:15:35,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 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 06:15:35,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:35,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:35,284 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 90 flow. Second operand 3 states and 355 transitions. [2023-08-27 06:15:35,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 168 flow [2023-08-27 06:15:35,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 06:15:35,285 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 88 flow [2023-08-27 06:15:35,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-08-27 06:15:35,286 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -19 predicate places. [2023-08-27 06:15:35,286 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 88 flow [2023-08-27 06:15:35,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:35,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:35,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:35,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:15:35,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:35,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:35,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1789882, now seen corresponding path program 1 times [2023-08-27 06:15:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:35,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089052657] [2023-08-27 06:15:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:35,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:35,392 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 06:15:35,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:35,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089052657] [2023-08-27 06:15:35,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089052657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:35,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:35,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:35,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97855022] [2023-08-27 06:15:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:35,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:35,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:35,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:35,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:35,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:35,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:35,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:35,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:35,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:37,521 INFO L124 PetriNetUnfolderBase]: 765/1344 cut-off events. [2023-08-27 06:15:37,521 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-27 06:15:37,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1344 events. 765/1344 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 8143 event pairs, 765 based on Foata normal form. 0/392 useless extension candidates. Maximal degree in co-relation 2706. Up to 1344 conditions per place. [2023-08-27 06:15:37,526 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 38 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2023-08-27 06:15:37,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 162 flow [2023-08-27 06:15:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-27 06:15:37,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44069912609238454 [2023-08-27 06:15:37,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-27 06:15:37,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-27 06:15:37,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:37,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-27 06:15:37,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 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 06:15:37,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:37,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:37,532 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 88 flow. Second operand 3 states and 353 transitions. [2023-08-27 06:15:37,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 162 flow [2023-08-27 06:15:37,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 161 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:37,534 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 85 flow [2023-08-27 06:15:37,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-27 06:15:37,534 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -20 predicate places. [2023-08-27 06:15:37,535 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 85 flow [2023-08-27 06:15:37,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:37,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:37,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:15:37,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:37,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1789884, now seen corresponding path program 1 times [2023-08-27 06:15:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:37,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848478689] [2023-08-27 06:15:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:37,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:37,684 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 06:15:37,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:37,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848478689] [2023-08-27 06:15:37,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848478689] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:37,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:37,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:37,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116978312] [2023-08-27 06:15:37,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:37,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:37,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:37,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:37,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:37,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:37,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:37,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:37,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:37,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:39,638 INFO L124 PetriNetUnfolderBase]: 672/1185 cut-off events. [2023-08-27 06:15:39,638 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-27 06:15:39,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2392 conditions, 1185 events. 672/1185 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 7016 event pairs, 672 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 2388. Up to 1185 conditions per place. [2023-08-27 06:15:39,643 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 36 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2023-08-27 06:15:39,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 155 flow [2023-08-27 06:15:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-08-27 06:15:39,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43820224719101125 [2023-08-27 06:15:39,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-08-27 06:15:39,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-08-27 06:15:39,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:39,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-08-27 06:15:39,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 06:15:39,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:39,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:39,649 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 85 flow. Second operand 3 states and 351 transitions. [2023-08-27 06:15:39,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 155 flow [2023-08-27 06:15:39,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:39,650 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 82 flow [2023-08-27 06:15:39,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-27 06:15:39,651 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -21 predicate places. [2023-08-27 06:15:39,651 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 82 flow [2023-08-27 06:15:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:39,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:39,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:39,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:15:39,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:39,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1789885, now seen corresponding path program 1 times [2023-08-27 06:15:39,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:39,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499428409] [2023-08-27 06:15:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:39,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:39,818 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 06:15:39,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:39,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499428409] [2023-08-27 06:15:39,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499428409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:39,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:39,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:39,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255432836] [2023-08-27 06:15:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:39,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:39,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:39,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:39,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:39,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:39,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:39,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:41,683 INFO L124 PetriNetUnfolderBase]: 585/1036 cut-off events. [2023-08-27 06:15:41,683 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 06:15:41,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1036 events. 585/1036 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 5990 event pairs, 585 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 2090. Up to 1036 conditions per place. [2023-08-27 06:15:41,688 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 34 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2023-08-27 06:15:41,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 148 flow [2023-08-27 06:15:41,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-08-27 06:15:41,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43570536828963796 [2023-08-27 06:15:41,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-08-27 06:15:41,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-08-27 06:15:41,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:41,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-08-27 06:15:41,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 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 06:15:41,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:41,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:41,695 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 82 flow. Second operand 3 states and 349 transitions. [2023-08-27 06:15:41,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 148 flow [2023-08-27 06:15:41,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 147 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:41,697 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 79 flow [2023-08-27 06:15:41,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-08-27 06:15:41,700 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -22 predicate places. [2023-08-27 06:15:41,701 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 79 flow [2023-08-27 06:15:41,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:41,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:41,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:41,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:15:41,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:41,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:41,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1789887, now seen corresponding path program 1 times [2023-08-27 06:15:41,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:41,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696433039] [2023-08-27 06:15:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:41,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:41,763 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 06:15:41,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:41,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696433039] [2023-08-27 06:15:41,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696433039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:41,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:41,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:41,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286394638] [2023-08-27 06:15:41,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:41,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:41,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:41,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:41,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:41,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:41,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:41,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:41,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:43,590 INFO L124 PetriNetUnfolderBase]: 504/897 cut-off events. [2023-08-27 06:15:43,590 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 06:15:43,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1816 conditions, 897 events. 504/897 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 5029 event pairs, 504 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 1812. Up to 897 conditions per place. [2023-08-27 06:15:43,593 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 32 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-08-27 06:15:43,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 33 transitions, 141 flow [2023-08-27 06:15:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2023-08-27 06:15:43,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332084893882647 [2023-08-27 06:15:43,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2023-08-27 06:15:43,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2023-08-27 06:15:43,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:43,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2023-08-27 06:15:43,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 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 06:15:43,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:43,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:43,599 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 79 flow. Second operand 3 states and 347 transitions. [2023-08-27 06:15:43,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 33 transitions, 141 flow [2023-08-27 06:15:43,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:43,600 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 76 flow [2023-08-27 06:15:43,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2023-08-27 06:15:43,601 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -23 predicate places. [2023-08-27 06:15:43,601 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 76 flow [2023-08-27 06:15:43,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:43,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:43,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:43,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:15:43,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:43,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1789888, now seen corresponding path program 1 times [2023-08-27 06:15:43,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:43,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475380515] [2023-08-27 06:15:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:43,673 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 06:15:43,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:43,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475380515] [2023-08-27 06:15:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475380515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:43,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:43,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:43,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221979735] [2023-08-27 06:15:43,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:43,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:43,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:43,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:43,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:43,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:43,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:43,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:45,281 INFO L124 PetriNetUnfolderBase]: 429/768 cut-off events. [2023-08-27 06:15:45,281 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-27 06:15:45,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 768 events. 429/768 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 4135 event pairs, 429 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 1554. Up to 768 conditions per place. [2023-08-27 06:15:45,284 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 30 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-08-27 06:15:45,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 134 flow [2023-08-27 06:15:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-08-27 06:15:45,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307116104868914 [2023-08-27 06:15:45,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-08-27 06:15:45,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-08-27 06:15:45,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:45,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-08-27 06:15:45,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 06:15:45,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:45,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:45,289 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 76 flow. Second operand 3 states and 345 transitions. [2023-08-27 06:15:45,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 134 flow [2023-08-27 06:15:45,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 133 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:45,290 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 73 flow [2023-08-27 06:15:45,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-27 06:15:45,291 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -24 predicate places. [2023-08-27 06:15:45,291 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 73 flow [2023-08-27 06:15:45,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:45,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:45,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:45,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:15:45,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:45,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1789890, now seen corresponding path program 1 times [2023-08-27 06:15:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564742530] [2023-08-27 06:15:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:45,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:45,444 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 06:15:45,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564742530] [2023-08-27 06:15:45,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564742530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:45,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:45,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:45,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798655120] [2023-08-27 06:15:45,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:45,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:45,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:45,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:45,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:45,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:45,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:45,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:45,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:46,765 INFO L124 PetriNetUnfolderBase]: 360/649 cut-off events. [2023-08-27 06:15:46,765 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-27 06:15:46,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 649 events. 360/649 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 3385 event pairs, 360 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 1316. Up to 649 conditions per place. [2023-08-27 06:15:46,767 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 28 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2023-08-27 06:15:46,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 127 flow [2023-08-27 06:15:46,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-08-27 06:15:46,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4282147315855181 [2023-08-27 06:15:46,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-08-27 06:15:46,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-08-27 06:15:46,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:46,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-08-27 06:15:46,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 06:15:46,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:46,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:46,772 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 73 flow. Second operand 3 states and 343 transitions. [2023-08-27 06:15:46,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 127 flow [2023-08-27 06:15:46,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:46,773 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 70 flow [2023-08-27 06:15:46,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2023-08-27 06:15:46,773 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -25 predicate places. [2023-08-27 06:15:46,773 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 70 flow [2023-08-27 06:15:46,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:46,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:46,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:46,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:15:46,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:46,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1789891, now seen corresponding path program 1 times [2023-08-27 06:15:46,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:46,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258852153] [2023-08-27 06:15:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:46,944 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 06:15:46,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258852153] [2023-08-27 06:15:46,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258852153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:46,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:46,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:46,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207064962] [2023-08-27 06:15:46,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:46,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:46,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:46,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:46,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:46,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:46,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:48,169 INFO L124 PetriNetUnfolderBase]: 297/540 cut-off events. [2023-08-27 06:15:48,169 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 06:15:48,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 540 events. 297/540 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 2699 event pairs, 297 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 1098. Up to 540 conditions per place. [2023-08-27 06:15:48,171 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 26 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-08-27 06:15:48,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 27 transitions, 120 flow [2023-08-27 06:15:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-08-27 06:15:48,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257178526841448 [2023-08-27 06:15:48,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-08-27 06:15:48,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-08-27 06:15:48,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:48,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-08-27 06:15:48,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 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 06:15:48,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:48,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:48,181 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 70 flow. Second operand 3 states and 341 transitions. [2023-08-27 06:15:48,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 27 transitions, 120 flow [2023-08-27 06:15:48,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 27 transitions, 119 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:48,183 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 67 flow [2023-08-27 06:15:48,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2023-08-27 06:15:48,184 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -26 predicate places. [2023-08-27 06:15:48,184 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 67 flow [2023-08-27 06:15:48,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:48,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:48,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:48,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:15:48,185 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:48,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:48,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1789893, now seen corresponding path program 1 times [2023-08-27 06:15:48,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959483837] [2023-08-27 06:15:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:48,259 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 06:15:48,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:48,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959483837] [2023-08-27 06:15:48,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959483837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:48,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:48,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:48,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313661088] [2023-08-27 06:15:48,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:48,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:48,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:48,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:48,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:48,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:48,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:48,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:48,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:48,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:49,456 INFO L124 PetriNetUnfolderBase]: 240/441 cut-off events. [2023-08-27 06:15:49,456 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 06:15:49,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 441 events. 240/441 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 2100 event pairs, 240 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 900. Up to 441 conditions per place. [2023-08-27 06:15:49,458 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 24 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-08-27 06:15:49,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 113 flow [2023-08-27 06:15:49,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2023-08-27 06:15:49,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4232209737827715 [2023-08-27 06:15:49,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2023-08-27 06:15:49,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2023-08-27 06:15:49,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:49,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2023-08-27 06:15:49,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 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 06:15:49,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:49,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:49,462 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 67 flow. Second operand 3 states and 339 transitions. [2023-08-27 06:15:49,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 113 flow [2023-08-27 06:15:49,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 25 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:49,463 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 64 flow [2023-08-27 06:15:49,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-08-27 06:15:49,464 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2023-08-27 06:15:49,464 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 64 flow [2023-08-27 06:15:49,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:49,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:49,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:49,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:15:49,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:49,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1789894, now seen corresponding path program 1 times [2023-08-27 06:15:49,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:49,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032588978] [2023-08-27 06:15:49,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:49,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:49,611 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 06:15:49,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:49,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032588978] [2023-08-27 06:15:49,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032588978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:49,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:49,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101428309] [2023-08-27 06:15:49,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:49,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:49,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:49,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:49,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:49,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:49,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:49,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:49,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:49,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:50,596 INFO L124 PetriNetUnfolderBase]: 189/352 cut-off events. [2023-08-27 06:15:50,596 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:15:50,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 352 events. 189/352 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 1579 event pairs, 189 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 722. Up to 352 conditions per place. [2023-08-27 06:15:50,597 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 22 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-08-27 06:15:50,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 23 transitions, 106 flow [2023-08-27 06:15:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-08-27 06:15:50,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4207240948813982 [2023-08-27 06:15:50,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-08-27 06:15:50,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-08-27 06:15:50,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:50,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-08-27 06:15:50,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 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 06:15:50,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:50,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:50,601 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 64 flow. Second operand 3 states and 337 transitions. [2023-08-27 06:15:50,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 23 transitions, 106 flow [2023-08-27 06:15:50,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 23 transitions, 105 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:50,602 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 61 flow [2023-08-27 06:15:50,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2023-08-27 06:15:50,602 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -28 predicate places. [2023-08-27 06:15:50,603 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 61 flow [2023-08-27 06:15:50,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:50,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:50,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:15:50,603 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:50,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1789896, now seen corresponding path program 1 times [2023-08-27 06:15:50,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554165960] [2023-08-27 06:15:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,089 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 06:15:51,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554165960] [2023-08-27 06:15:51,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554165960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001680907] [2023-08-27 06:15:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:51,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:51,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:51,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:52,053 INFO L124 PetriNetUnfolderBase]: 144/273 cut-off events. [2023-08-27 06:15:52,053 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:15:52,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 273 events. 144/273 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1140 event pairs, 144 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 564. Up to 273 conditions per place. [2023-08-27 06:15:52,054 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 20 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-08-27 06:15:52,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 21 transitions, 99 flow [2023-08-27 06:15:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2023-08-27 06:15:52,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.418227215980025 [2023-08-27 06:15:52,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 335 transitions. [2023-08-27 06:15:52,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 335 transitions. [2023-08-27 06:15:52,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:52,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 335 transitions. [2023-08-27 06:15:52,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 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 06:15:52,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:52,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:52,058 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 61 flow. Second operand 3 states and 335 transitions. [2023-08-27 06:15:52,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 21 transitions, 99 flow [2023-08-27 06:15:52,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 21 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:52,059 INFO L231 Difference]: Finished difference. Result has 37 places, 21 transitions, 58 flow [2023-08-27 06:15:52,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=37, PETRI_TRANSITIONS=21} [2023-08-27 06:15:52,059 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -29 predicate places. [2023-08-27 06:15:52,060 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 21 transitions, 58 flow [2023-08-27 06:15:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:52,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:52,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:52,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:15:52,060 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:52,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1789897, now seen corresponding path program 1 times [2023-08-27 06:15:52,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:52,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802170362] [2023-08-27 06:15:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:52,385 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 06:15:52,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802170362] [2023-08-27 06:15:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802170362] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354214573] [2023-08-27 06:15:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:52,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:52,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 21 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:52,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:52,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:52,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:53,165 INFO L124 PetriNetUnfolderBase]: 105/204 cut-off events. [2023-08-27 06:15:53,165 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-27 06:15:53,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 204 events. 105/204 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 775 event pairs, 105 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 426. Up to 204 conditions per place. [2023-08-27 06:15:53,166 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-08-27 06:15:53,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 19 transitions, 92 flow [2023-08-27 06:15:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:53,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2023-08-27 06:15:53,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4157303370786517 [2023-08-27 06:15:53,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 333 transitions. [2023-08-27 06:15:53,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 333 transitions. [2023-08-27 06:15:53,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:53,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 333 transitions. [2023-08-27 06:15:53,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 06:15:53,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:53,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:53,172 INFO L175 Difference]: Start difference. First operand has 37 places, 21 transitions, 58 flow. Second operand 3 states and 333 transitions. [2023-08-27 06:15:53,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 19 transitions, 92 flow [2023-08-27 06:15:53,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 19 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:53,174 INFO L231 Difference]: Finished difference. Result has 36 places, 19 transitions, 55 flow [2023-08-27 06:15:53,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=36, PETRI_TRANSITIONS=19} [2023-08-27 06:15:53,175 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -30 predicate places. [2023-08-27 06:15:53,175 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 19 transitions, 55 flow [2023-08-27 06:15:53,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:53,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:53,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:53,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 06:15:53,176 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:53,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1789899, now seen corresponding path program 1 times [2023-08-27 06:15:53,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:53,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532997811] [2023-08-27 06:15:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:53,318 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 06:15:53,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:53,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532997811] [2023-08-27 06:15:53,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532997811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:53,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:53,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:53,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763122763] [2023-08-27 06:15:53,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:53,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:53,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:53,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:53,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 19 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:53,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:53,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:53,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:53,863 INFO L124 PetriNetUnfolderBase]: 72/145 cut-off events. [2023-08-27 06:15:53,863 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 06:15:53,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 145 events. 72/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 495 event pairs, 72 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 308. Up to 145 conditions per place. [2023-08-27 06:15:53,864 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-27 06:15:53,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 17 transitions, 85 flow [2023-08-27 06:15:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:53,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-08-27 06:15:53,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4132334581772784 [2023-08-27 06:15:53,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-08-27 06:15:53,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-08-27 06:15:53,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:53,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-08-27 06:15:53,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 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 06:15:53,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:53,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:53,867 INFO L175 Difference]: Start difference. First operand has 36 places, 19 transitions, 55 flow. Second operand 3 states and 331 transitions. [2023-08-27 06:15:53,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 17 transitions, 85 flow [2023-08-27 06:15:53,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 17 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:53,868 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 52 flow [2023-08-27 06:15:53,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2023-08-27 06:15:53,868 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -31 predicate places. [2023-08-27 06:15:53,868 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 17 transitions, 52 flow [2023-08-27 06:15:53,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:53,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:53,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:53,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 06:15:53,869 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:53,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1789900, now seen corresponding path program 1 times [2023-08-27 06:15:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834667540] [2023-08-27 06:15:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:54,056 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 06:15:54,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:54,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834667540] [2023-08-27 06:15:54,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834667540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:54,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:54,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328783228] [2023-08-27 06:15:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:54,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:54,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:54,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:54,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 17 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:54,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:54,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:54,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:54,406 INFO L124 PetriNetUnfolderBase]: 45/96 cut-off events. [2023-08-27 06:15:54,407 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:15:54,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 96 events. 45/96 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 274 event pairs, 45 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 210. Up to 96 conditions per place. [2023-08-27 06:15:54,407 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-08-27 06:15:54,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 78 flow [2023-08-27 06:15:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2023-08-27 06:15:54,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107365792759051 [2023-08-27 06:15:54,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 329 transitions. [2023-08-27 06:15:54,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 329 transitions. [2023-08-27 06:15:54,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:54,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 329 transitions. [2023-08-27 06:15:54,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 06:15:54,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:54,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:54,412 INFO L175 Difference]: Start difference. First operand has 35 places, 17 transitions, 52 flow. Second operand 3 states and 329 transitions. [2023-08-27 06:15:54,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 78 flow [2023-08-27 06:15:54,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 15 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:54,413 INFO L231 Difference]: Finished difference. Result has 34 places, 15 transitions, 49 flow [2023-08-27 06:15:54,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=34, PETRI_TRANSITIONS=15} [2023-08-27 06:15:54,413 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -32 predicate places. [2023-08-27 06:15:54,414 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 15 transitions, 49 flow [2023-08-27 06:15:54,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:54,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:54,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:54,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 06:15:54,414 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:54,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1789902, now seen corresponding path program 1 times [2023-08-27 06:15:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:54,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602265544] [2023-08-27 06:15:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:54,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:55,136 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 06:15:55,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:55,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602265544] [2023-08-27 06:15:55,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602265544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:55,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:55,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:55,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782752221] [2023-08-27 06:15:55,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:55,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:55,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:55,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 15 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:55,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:55,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:55,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:55,302 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-27 06:15:55,302 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:15:55,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 57 events. 24/57 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 122 event pairs, 24 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 132. Up to 57 conditions per place. [2023-08-27 06:15:55,303 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-27 06:15:55,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 13 transitions, 71 flow [2023-08-27 06:15:55,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2023-08-27 06:15:55,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40823970037453183 [2023-08-27 06:15:55,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2023-08-27 06:15:55,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2023-08-27 06:15:55,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:55,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2023-08-27 06:15:55,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 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 06:15:55,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:55,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:55,307 INFO L175 Difference]: Start difference. First operand has 34 places, 15 transitions, 49 flow. Second operand 3 states and 327 transitions. [2023-08-27 06:15:55,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 13 transitions, 71 flow [2023-08-27 06:15:55,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 13 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:55,307 INFO L231 Difference]: Finished difference. Result has 33 places, 13 transitions, 46 flow [2023-08-27 06:15:55,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=33, PETRI_TRANSITIONS=13} [2023-08-27 06:15:55,308 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -33 predicate places. [2023-08-27 06:15:55,308 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 13 transitions, 46 flow [2023-08-27 06:15:55,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:55,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:55,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:55,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 06:15:55,309 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:55,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:55,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1789903, now seen corresponding path program 1 times [2023-08-27 06:15:55,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:55,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925182578] [2023-08-27 06:15:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:55,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:55,909 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 06:15:55,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:55,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925182578] [2023-08-27 06:15:55,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925182578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:55,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:55,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:55,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853663887] [2023-08-27 06:15:55,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:55,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:55,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:55,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:55,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:55,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 267 [2023-08-27 06:15:55,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 13 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:55,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:55,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 267 [2023-08-27 06:15:55,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:55,983 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-27 06:15:55,983 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 06:15:55,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 9 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 74. Up to 28 conditions per place. [2023-08-27 06:15:55,984 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-27 06:15:55,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 11 transitions, 64 flow [2023-08-27 06:15:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2023-08-27 06:15:55,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40574282147315854 [2023-08-27 06:15:55,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2023-08-27 06:15:55,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2023-08-27 06:15:55,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:55,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2023-08-27 06:15:55,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 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 06:15:55,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:55,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 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 06:15:55,987 INFO L175 Difference]: Start difference. First operand has 33 places, 13 transitions, 46 flow. Second operand 3 states and 325 transitions. [2023-08-27 06:15:55,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 11 transitions, 64 flow [2023-08-27 06:15:55,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 11 transitions, 63 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:55,988 INFO L231 Difference]: Finished difference. Result has 32 places, 11 transitions, 43 flow [2023-08-27 06:15:55,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=32, PETRI_TRANSITIONS=11} [2023-08-27 06:15:55,989 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -34 predicate places. [2023-08-27 06:15:55,989 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 11 transitions, 43 flow [2023-08-27 06:15:55,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 06:15:55,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:55,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:55,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 06:15:55,989 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:15:55,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:55,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1465984925, now seen corresponding path program 1 times [2023-08-27 06:15:55,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:55,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414892101] [2023-08-27 06:15:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:55,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:16:00,044 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 06:16:00,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:16:00,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414892101] [2023-08-27 06:16:00,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414892101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:16:00,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:16:00,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:16:00,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234924120] [2023-08-27 06:16:00,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:16:00,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:16:00,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:16:00,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:16:00,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:16:00,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 267 [2023-08-27 06:16:00,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 11 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 06:16:00,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:16:00,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 267 [2023-08-27 06:16:00,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:16:00,254 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-27 06:16:00,255 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 06:16:00,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 32 events. 8/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 83. Up to 16 conditions per place. [2023-08-27 06:16:00,255 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions. [2023-08-27 06:16:00,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 19 transitions, 100 flow [2023-08-27 06:16:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:16:00,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:16:00,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-08-27 06:16:00,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3295880149812734 [2023-08-27 06:16:00,256 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 352 transitions. [2023-08-27 06:16:00,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 352 transitions. [2023-08-27 06:16:00,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:16:00,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 352 transitions. [2023-08-27 06:16:00,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 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 06:16:00,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 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 06:16:00,259 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 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 06:16:00,259 INFO L175 Difference]: Start difference. First operand has 32 places, 11 transitions, 43 flow. Second operand 4 states and 352 transitions. [2023-08-27 06:16:00,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 19 transitions, 100 flow [2023-08-27 06:16:00,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:16:00,260 INFO L231 Difference]: Finished difference. Result has 36 places, 11 transitions, 49 flow [2023-08-27 06:16:00,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=49, PETRI_PLACES=36, PETRI_TRANSITIONS=11} [2023-08-27 06:16:00,261 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -30 predicate places. [2023-08-27 06:16:00,261 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 11 transitions, 49 flow [2023-08-27 06:16:00,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 06:16:00,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:16:00,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:16:00,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 06:16:00,262 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 96 more)] === [2023-08-27 06:16:00,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:16:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash 485984897, now seen corresponding path program 2 times [2023-08-27 06:16:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:16:00,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312016925] [2023-08-27 06:16:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:16:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:16:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:16:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:16:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:16:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312016925] [2023-08-27 06:16:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312016925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:16:03,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:16:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:16:03,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396418071] [2023-08-27 06:16:03,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:16:03,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:16:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:16:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:16:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:16:03,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 267 [2023-08-27 06:16:03,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 11 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 06:16:03,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:16:03,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 267 [2023-08-27 06:16:03,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:16:03,427 INFO L124 PetriNetUnfolderBase]: 5/23 cut-off events. [2023-08-27 06:16:03,427 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 06:16:03,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 23 events. 5/23 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 73. Up to 15 conditions per place. [2023-08-27 06:16:03,428 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-27 06:16:03,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 15 transitions, 89 flow [2023-08-27 06:16:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:16:03,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:16:03,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2023-08-27 06:16:03,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3258426966292135 [2023-08-27 06:16:03,429 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2023-08-27 06:16:03,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2023-08-27 06:16:03,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:16:03,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2023-08-27 06:16:03,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 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 06:16:03,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 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 06:16:03,431 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 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 06:16:03,431 INFO L175 Difference]: Start difference. First operand has 36 places, 11 transitions, 49 flow. Second operand 4 states and 348 transitions. [2023-08-27 06:16:03,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 15 transitions, 89 flow [2023-08-27 06:16:03,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 15 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:16:03,432 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-27 06:16:03,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-27 06:16:03,432 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -30 predicate places. [2023-08-27 06:16:03,432 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-27 06:16:03,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 06:16:03,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 99 remaining) [2023-08-27 06:16:03,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 99 remaining) [2023-08-27 06:16:03,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 99 remaining) [2023-08-27 06:16:03,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 99 remaining) [2023-08-27 06:16:03,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 99 remaining) [2023-08-27 06:16:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 99 remaining) [2023-08-27 06:16:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 99 remaining) [2023-08-27 06:16:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 99 remaining) [2023-08-27 06:16:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (50 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 99 remaining) [2023-08-27 06:16:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 99 remaining) [2023-08-27 06:16:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 99 remaining) [2023-08-27 06:16:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 99 remaining) [2023-08-27 06:16:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 99 remaining) [2023-08-27 06:16:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 99 remaining) [2023-08-27 06:16:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 99 remaining) [2023-08-27 06:16:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 99 remaining) [2023-08-27 06:16:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 99 remaining) [2023-08-27 06:16:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 99 remaining) [2023-08-27 06:16:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 99 remaining) [2023-08-27 06:16:03,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 06:16:03,446 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:16:03,451 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:16:03,451 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:16:03,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:16:03 BasicIcfg [2023-08-27 06:16:03,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:16:03,454 INFO L158 Benchmark]: Toolchain (without parser) took 63108.58ms. Allocated memory was 375.4MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 351.5MB in the beginning and 1.1GB in the end (delta: -736.2MB). Peak memory consumption was 500.7MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,455 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 375.4MB. Free memory was 353.1MB in the beginning and 353.0MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:16:03,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.70ms. Allocated memory is still 375.4MB. Free memory was 351.1MB in the beginning and 340.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.11ms. Allocated memory is still 375.4MB. Free memory was 339.5MB in the beginning and 336.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,455 INFO L158 Benchmark]: Boogie Preprocessor took 39.83ms. Allocated memory is still 375.4MB. Free memory was 336.9MB in the beginning and 334.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,456 INFO L158 Benchmark]: RCFGBuilder took 4153.52ms. Allocated memory was 375.4MB in the beginning and 805.3MB in the end (delta: 429.9MB). Free memory was 334.8MB in the beginning and 715.4MB in the end (delta: -380.7MB). Peak memory consumption was 290.0MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,456 INFO L158 Benchmark]: TraceAbstraction took 58569.00ms. Allocated memory was 805.3MB in the beginning and 1.6GB in the end (delta: 805.3MB). Free memory was 714.4MB in the beginning and 1.1GB in the end (delta: -373.3MB). Peak memory consumption was 431.0MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 375.4MB. Free memory was 353.1MB in the beginning and 353.0MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 279.70ms. Allocated memory is still 375.4MB. Free memory was 351.1MB in the beginning and 340.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.11ms. Allocated memory is still 375.4MB. Free memory was 339.5MB in the beginning and 336.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.83ms. Allocated memory is still 375.4MB. Free memory was 336.9MB in the beginning and 334.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 4153.52ms. Allocated memory was 375.4MB in the beginning and 805.3MB in the end (delta: 429.9MB). Free memory was 334.8MB in the beginning and 715.4MB in the end (delta: -380.7MB). Peak memory consumption was 290.0MB. Max. memory is 16.0GB. * TraceAbstraction took 58569.00ms. Allocated memory was 805.3MB in the beginning and 1.6GB in the end (delta: 805.3MB). Free memory was 714.4MB in the beginning and 1.1GB in the end (delta: -373.3MB). Peak memory consumption was 431.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.7s, 157 PlacesBefore, 66 PlacesAfterwards, 153 TransitionsBefore, 59 TransitionsAfterwards, 2268 CoEnabledTransitionPairs, 7 FixpointIterations, 82 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 103 TotalNumberOfCompositions, 1619 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1619, independent: 1619, independent conditional: 0, independent unconditional: 1619, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 521, independent: 521, independent conditional: 0, independent unconditional: 521, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1619, independent: 1098, independent conditional: 0, independent unconditional: 1098, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 521, unknown conditional: 0, unknown unconditional: 521] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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, 220 locations, 99 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: 57.6s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 24.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 531 IncrementalHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 0 mSDtfsCounter, 531 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, InterpolantAutomatonStates: 58, 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, 0.8s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 49 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 06:16:03,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...