/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:23:55,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:23:55,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 21:23:55,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:23:55,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:23:55,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:23:55,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:23:55,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:23:55,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:23:55,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:23:55,412 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:23:55,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:23:55,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:23:55,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:23:55,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:23:55,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:23:55,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:23:55,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:23:55,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:23:55,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:23:55,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:23:55,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:23:55,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:23:55,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:23:55,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:23:55,424 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:23:55,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:23:55,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:23:55,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:23:55,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:23:55,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:23:55,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:23:55,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:23:55,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:23:55,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:23:55,427 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:23:55,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:23:55,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:23:55,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:23:55,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:23:55,729 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:23:55,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-08-26 21:23:56,794 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:23:57,029 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:23:57,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2023-08-26 21:23:57,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be904b7b3/a721229af8d64be18e18e2b0066ce8ce/FLAGb37bc6668 [2023-08-26 21:23:57,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be904b7b3/a721229af8d64be18e18e2b0066ce8ce [2023-08-26 21:23:57,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:23:57,057 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:23:57,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:23:57,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:23:57,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:23:57,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a5d731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57, skipping insertion in model container [2023-08-26 21:23:57,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,122 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:23:57,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:23:57,458 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:23:57,485 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:23:57,487 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:23:57,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:23:57,551 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:23:57,551 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:23:57,557 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:23:57,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57 WrapperNode [2023-08-26 21:23:57,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:23:57,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:23:57,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:23:57,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:23:57,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,601 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-08-26 21:23:57,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:23:57,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:23:57,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:23:57,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:23:57,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:23:57,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:23:57,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:23:57,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:23:57,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (1/1) ... [2023-08-26 21:23:57,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:23:57,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:23:57,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 21:23:57,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 21:23:57,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:23:57,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:23:57,722 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:23:57,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:23:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 21:23:57,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 21:23:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:23:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:23:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:23:57,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:23:57,726 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 21:23:57,827 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:23:57,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:23:57,956 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:23:57,979 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:23:57,979 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:23:57,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:23:57 BoogieIcfgContainer [2023-08-26 21:23:57,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:23:57,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:23:57,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:23:57,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:23:57,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:23:57" (1/3) ... [2023-08-26 21:23:57,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50789e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:23:57, skipping insertion in model container [2023-08-26 21:23:57,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:23:57" (2/3) ... [2023-08-26 21:23:57,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50789e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:23:57, skipping insertion in model container [2023-08-26 21:23:57,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:23:57" (3/3) ... [2023-08-26 21:23:57,988 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2023-08-26 21:23:57,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:23:58,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-26 21:23:58,000 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:23:58,054 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:23:58,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 95 transitions, 205 flow [2023-08-26 21:23:58,119 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-26 21:23:58,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:23:58,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:23:58,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 95 transitions, 205 flow [2023-08-26 21:23:58,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 92 transitions, 193 flow [2023-08-26 21:23:58,137 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:23:58,144 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-26 21:23:58,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-26 21:23:58,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 92 transitions, 193 flow [2023-08-26 21:23:58,168 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-26 21:23:58,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:23:58,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:23:58,171 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-26 21:24:00,421 INFO L134 LiptonReduction]: Checked pairs total: 6787 [2023-08-26 21:24:00,421 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-26 21:24:00,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:24:00,437 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;@160006ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:24:00,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 21:24:00,440 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:24:00,440 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-26 21:24:00,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:24:00,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:00,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:24:00,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:00,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:00,445 INFO L85 PathProgramCache]: Analyzing trace with hash 336258923, now seen corresponding path program 1 times [2023-08-26 21:24:00,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:00,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522856533] [2023-08-26 21:24:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:00,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522856533] [2023-08-26 21:24:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522856533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:00,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:00,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:24:00,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107223999] [2023-08-26 21:24:00,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:00,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:24:00,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:24:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:24:00,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:00,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:00,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:00,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:00,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:00,832 INFO L124 PetriNetUnfolderBase]: 496/814 cut-off events. [2023-08-26 21:24:00,832 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 21:24:00,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 814 events. 496/814 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3702 event pairs, 127 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 1647. Up to 710 conditions per place. [2023-08-26 21:24:00,845 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 30 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2023-08-26 21:24:00,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 157 flow [2023-08-26 21:24:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:24:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:24:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-08-26 21:24:00,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083798882681564 [2023-08-26 21:24:00,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-08-26 21:24:00,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-08-26 21:24:00,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:00,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-08-26 21:24:00,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:00,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:00,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:00,875 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 59 flow. Second operand 3 states and 273 transitions. [2023-08-26 21:24:00,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 157 flow [2023-08-26 21:24:00,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 21:24:00,880 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 90 flow [2023-08-26 21:24:00,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-08-26 21:24:00,884 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-26 21:24:00,884 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 90 flow [2023-08-26 21:24:00,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:00,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:00,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:00,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:24:00,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:00,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1724779416, now seen corresponding path program 1 times [2023-08-26 21:24:00,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158314838] [2023-08-26 21:24:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:01,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:01,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158314838] [2023-08-26 21:24:01,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158314838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:01,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:01,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:24:01,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137777849] [2023-08-26 21:24:01,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:01,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:24:01,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:01,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:24:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:24:01,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:01,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:01,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:01,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:01,367 INFO L124 PetriNetUnfolderBase]: 1189/2022 cut-off events. [2023-08-26 21:24:01,368 INFO L125 PetriNetUnfolderBase]: For 227/247 co-relation queries the response was YES. [2023-08-26 21:24:01,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5023 conditions, 2022 events. 1189/2022 cut-off events. For 227/247 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 11634 event pairs, 427 based on Foata normal form. 5/1673 useless extension candidates. Maximal degree in co-relation 5012. Up to 1017 conditions per place. [2023-08-26 21:24:01,382 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 38 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-08-26 21:24:01,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 247 flow [2023-08-26 21:24:01,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:24:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:24:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-26 21:24:01,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4767225325884544 [2023-08-26 21:24:01,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-26 21:24:01,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-26 21:24:01,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:01,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-26 21:24:01,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,390 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 90 flow. Second operand 3 states and 256 transitions. [2023-08-26 21:24:01,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 247 flow [2023-08-26 21:24:01,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:01,392 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 140 flow [2023-08-26 21:24:01,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-26 21:24:01,393 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-26 21:24:01,394 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 140 flow [2023-08-26 21:24:01,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:01,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:01,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:24:01,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:01,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1928555294, now seen corresponding path program 1 times [2023-08-26 21:24:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:01,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574255624] [2023-08-26 21:24:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:01,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:01,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:01,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574255624] [2023-08-26 21:24:01,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574255624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:01,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:01,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:01,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802674799] [2023-08-26 21:24:01,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:01,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:01,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:01,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:01,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:01,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:01,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:01,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:01,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:01,834 INFO L124 PetriNetUnfolderBase]: 1137/1932 cut-off events. [2023-08-26 21:24:01,834 INFO L125 PetriNetUnfolderBase]: For 928/965 co-relation queries the response was YES. [2023-08-26 21:24:01,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5748 conditions, 1932 events. 1137/1932 cut-off events. For 928/965 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10813 event pairs, 236 based on Foata normal form. 16/1662 useless extension candidates. Maximal degree in co-relation 5734. Up to 881 conditions per place. [2023-08-26 21:24:01,849 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 48 selfloop transitions, 8 changer transitions 0/59 dead transitions. [2023-08-26 21:24:01,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 356 flow [2023-08-26 21:24:01,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-26 21:24:01,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650837988826816 [2023-08-26 21:24:01,851 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-26 21:24:01,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-26 21:24:01,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:01,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-26 21:24:01,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 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) [2023-08-26 21:24:01,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,855 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,855 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 140 flow. Second operand 4 states and 333 transitions. [2023-08-26 21:24:01,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 356 flow [2023-08-26 21:24:01,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:01,863 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 184 flow [2023-08-26 21:24:01,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-26 21:24:01,865 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-08-26 21:24:01,865 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 184 flow [2023-08-26 21:24:01,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:01,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:24:01,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:01,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:01,870 INFO L85 PathProgramCache]: Analyzing trace with hash -844185456, now seen corresponding path program 1 times [2023-08-26 21:24:01,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:01,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271233174] [2023-08-26 21:24:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:01,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:01,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271233174] [2023-08-26 21:24:01,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271233174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:01,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:01,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176929784] [2023-08-26 21:24:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:01,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:01,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:01,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:01,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:01,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:01,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:01,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:01,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:02,085 INFO L124 PetriNetUnfolderBase]: 780/1325 cut-off events. [2023-08-26 21:24:02,086 INFO L125 PetriNetUnfolderBase]: For 1576/1667 co-relation queries the response was YES. [2023-08-26 21:24:02,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4296 conditions, 1325 events. 780/1325 cut-off events. For 1576/1667 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7396 event pairs, 148 based on Foata normal form. 61/1129 useless extension candidates. Maximal degree in co-relation 4279. Up to 977 conditions per place. [2023-08-26 21:24:02,096 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 37 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-26 21:24:02,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 328 flow [2023-08-26 21:24:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:02,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-26 21:24:02,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776536312849162 [2023-08-26 21:24:02,098 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-26 21:24:02,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-26 21:24:02,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:02,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-26 21:24:02,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,101 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,101 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 184 flow. Second operand 4 states and 342 transitions. [2023-08-26 21:24:02,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 328 flow [2023-08-26 21:24:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:02,106 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 177 flow [2023-08-26 21:24:02,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-26 21:24:02,107 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2023-08-26 21:24:02,107 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 177 flow [2023-08-26 21:24:02,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:02,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:02,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:24:02,108 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:02,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -844185455, now seen corresponding path program 1 times [2023-08-26 21:24:02,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:02,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563928254] [2023-08-26 21:24:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:02,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563928254] [2023-08-26 21:24:02,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563928254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:02,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:02,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:02,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073843176] [2023-08-26 21:24:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:02,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:02,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:02,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:02,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:02,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:02,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:02,300 INFO L124 PetriNetUnfolderBase]: 562/959 cut-off events. [2023-08-26 21:24:02,300 INFO L125 PetriNetUnfolderBase]: For 1352/1441 co-relation queries the response was YES. [2023-08-26 21:24:02,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3286 conditions, 959 events. 562/959 cut-off events. For 1352/1441 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4958 event pairs, 92 based on Foata normal form. 59/946 useless extension candidates. Maximal degree in co-relation 3268. Up to 349 conditions per place. [2023-08-26 21:24:02,306 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 49 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2023-08-26 21:24:02,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 433 flow [2023-08-26 21:24:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 353 transitions. [2023-08-26 21:24:02,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930167597765363 [2023-08-26 21:24:02,308 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 353 transitions. [2023-08-26 21:24:02,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 353 transitions. [2023-08-26 21:24:02,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:02,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 353 transitions. [2023-08-26 21:24:02,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.25) internal successors, (353), 4 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) [2023-08-26 21:24:02,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,311 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,311 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 177 flow. Second operand 4 states and 353 transitions. [2023-08-26 21:24:02,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 433 flow [2023-08-26 21:24:02,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 64 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:02,314 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 216 flow [2023-08-26 21:24:02,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-08-26 21:24:02,316 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-26 21:24:02,316 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 216 flow [2023-08-26 21:24:02,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:02,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:02,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:24:02,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:02,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:02,317 INFO L85 PathProgramCache]: Analyzing trace with hash 342625149, now seen corresponding path program 1 times [2023-08-26 21:24:02,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421911253] [2023-08-26 21:24:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:02,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:02,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:02,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421911253] [2023-08-26 21:24:02,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421911253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:02,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:02,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:02,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859010863] [2023-08-26 21:24:02,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:02,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:02,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:02,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:02,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:02,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:02,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:02,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:02,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:02,584 INFO L124 PetriNetUnfolderBase]: 747/1194 cut-off events. [2023-08-26 21:24:02,584 INFO L125 PetriNetUnfolderBase]: For 1968/1968 co-relation queries the response was YES. [2023-08-26 21:24:02,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4731 conditions, 1194 events. 747/1194 cut-off events. For 1968/1968 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5245 event pairs, 122 based on Foata normal form. 6/1176 useless extension candidates. Maximal degree in co-relation 4712. Up to 562 conditions per place. [2023-08-26 21:24:02,591 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 57 selfloop transitions, 15 changer transitions 0/72 dead transitions. [2023-08-26 21:24:02,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 557 flow [2023-08-26 21:24:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:02,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2023-08-26 21:24:02,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47067039106145253 [2023-08-26 21:24:02,593 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2023-08-26 21:24:02,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2023-08-26 21:24:02,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:02,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2023-08-26 21:24:02,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.25) internal successors, (337), 4 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) [2023-08-26 21:24:02,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,596 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,596 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 216 flow. Second operand 4 states and 337 transitions. [2023-08-26 21:24:02,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 557 flow [2023-08-26 21:24:02,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 530 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:02,601 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 355 flow [2023-08-26 21:24:02,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=355, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2023-08-26 21:24:02,602 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-08-26 21:24:02,602 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 355 flow [2023-08-26 21:24:02,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:02,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:02,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:24:02,603 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:02,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash 342623692, now seen corresponding path program 1 times [2023-08-26 21:24:02,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:02,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250425393] [2023-08-26 21:24:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:02,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:02,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:02,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250425393] [2023-08-26 21:24:02,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250425393] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:02,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:02,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:24:02,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812736534] [2023-08-26 21:24:02,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:02,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:24:02,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:24:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:24:02,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 179 [2023-08-26 21:24:02,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:02,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 179 [2023-08-26 21:24:02,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:02,814 INFO L124 PetriNetUnfolderBase]: 566/981 cut-off events. [2023-08-26 21:24:02,815 INFO L125 PetriNetUnfolderBase]: For 2364/2500 co-relation queries the response was YES. [2023-08-26 21:24:02,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4061 conditions, 981 events. 566/981 cut-off events. For 2364/2500 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4951 event pairs, 113 based on Foata normal form. 48/970 useless extension candidates. Maximal degree in co-relation 4039. Up to 676 conditions per place. [2023-08-26 21:24:02,821 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 41 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-08-26 21:24:02,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 510 flow [2023-08-26 21:24:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:24:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:24:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-26 21:24:02,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49534450651769085 [2023-08-26 21:24:02,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-26 21:24:02,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-26 21:24:02,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:02,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-26 21:24:02,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,825 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 355 flow. Second operand 3 states and 266 transitions. [2023-08-26 21:24:02,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 510 flow [2023-08-26 21:24:02,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 510 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:24:02,831 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 375 flow [2023-08-26 21:24:02,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2023-08-26 21:24:02,831 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2023-08-26 21:24:02,832 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 375 flow [2023-08-26 21:24:02,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:02,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:02,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:24:02,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:02,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2084172690, now seen corresponding path program 1 times [2023-08-26 21:24:02,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:02,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122075401] [2023-08-26 21:24:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:02,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:02,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:02,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122075401] [2023-08-26 21:24:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122075401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:02,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:02,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082274809] [2023-08-26 21:24:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:02,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:02,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:02,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:02,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:02,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:02,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 375 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:02,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:02,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:02,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:03,117 INFO L124 PetriNetUnfolderBase]: 856/1382 cut-off events. [2023-08-26 21:24:03,117 INFO L125 PetriNetUnfolderBase]: For 3709/3709 co-relation queries the response was YES. [2023-08-26 21:24:03,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6180 conditions, 1382 events. 856/1382 cut-off events. For 3709/3709 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6418 event pairs, 167 based on Foata normal form. 33/1382 useless extension candidates. Maximal degree in co-relation 6155. Up to 786 conditions per place. [2023-08-26 21:24:03,126 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 72 selfloop transitions, 12 changer transitions 6/90 dead transitions. [2023-08-26 21:24:03,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 90 transitions, 801 flow [2023-08-26 21:24:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2023-08-26 21:24:03,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46368715083798884 [2023-08-26 21:24:03,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2023-08-26 21:24:03,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2023-08-26 21:24:03,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:03,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2023-08-26 21:24:03,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,130 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,130 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 375 flow. Second operand 5 states and 415 transitions. [2023-08-26 21:24:03,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 90 transitions, 801 flow [2023-08-26 21:24:03,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 785 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:03,140 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 473 flow [2023-08-26 21:24:03,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=473, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-08-26 21:24:03,141 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 20 predicate places. [2023-08-26 21:24:03,141 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 473 flow [2023-08-26 21:24:03,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:03,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:03,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 21:24:03,142 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:03,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1456169467, now seen corresponding path program 1 times [2023-08-26 21:24:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:03,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132087863] [2023-08-26 21:24:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:03,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132087863] [2023-08-26 21:24:03,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132087863] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:03,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:03,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:03,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942549600] [2023-08-26 21:24:03,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:03,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:03,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:03,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:03,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:03,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 473 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:03,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:03,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:03,405 INFO L124 PetriNetUnfolderBase]: 909/1493 cut-off events. [2023-08-26 21:24:03,405 INFO L125 PetriNetUnfolderBase]: For 5290/5290 co-relation queries the response was YES. [2023-08-26 21:24:03,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7006 conditions, 1493 events. 909/1493 cut-off events. For 5290/5290 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7305 event pairs, 151 based on Foata normal form. 6/1454 useless extension candidates. Maximal degree in co-relation 6978. Up to 647 conditions per place. [2023-08-26 21:24:03,421 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 65 selfloop transitions, 23 changer transitions 6/94 dead transitions. [2023-08-26 21:24:03,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 94 transitions, 923 flow [2023-08-26 21:24:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-26 21:24:03,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776536312849162 [2023-08-26 21:24:03,423 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-26 21:24:03,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-26 21:24:03,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:03,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-26 21:24:03,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,425 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,426 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 473 flow. Second operand 4 states and 342 transitions. [2023-08-26 21:24:03,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 94 transitions, 923 flow [2023-08-26 21:24:03,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 94 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:03,442 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 665 flow [2023-08-26 21:24:03,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=665, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2023-08-26 21:24:03,443 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2023-08-26 21:24:03,443 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 665 flow [2023-08-26 21:24:03,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:03,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:03,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 21:24:03,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:03,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2141534044, now seen corresponding path program 1 times [2023-08-26 21:24:03,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:03,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739742085] [2023-08-26 21:24:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739742085] [2023-08-26 21:24:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739742085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:03,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:03,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634440200] [2023-08-26 21:24:03,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:03,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:03,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:03,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:03,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:03,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 665 flow. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:03,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:03,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:03,824 INFO L124 PetriNetUnfolderBase]: 1316/2220 cut-off events. [2023-08-26 21:24:03,824 INFO L125 PetriNetUnfolderBase]: For 11105/11105 co-relation queries the response was YES. [2023-08-26 21:24:03,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11280 conditions, 2220 events. 1316/2220 cut-off events. For 11105/11105 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 12319 event pairs, 236 based on Foata normal form. 15/2148 useless extension candidates. Maximal degree in co-relation 11248. Up to 1060 conditions per place. [2023-08-26 21:24:03,841 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 83 selfloop transitions, 26 changer transitions 6/115 dead transitions. [2023-08-26 21:24:03,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 115 transitions, 1344 flow [2023-08-26 21:24:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 421 transitions. [2023-08-26 21:24:03,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47039106145251397 [2023-08-26 21:24:03,843 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 421 transitions. [2023-08-26 21:24:03,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 421 transitions. [2023-08-26 21:24:03,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:03,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 421 transitions. [2023-08-26 21:24:03,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,846 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,846 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 665 flow. Second operand 5 states and 421 transitions. [2023-08-26 21:24:03,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 115 transitions, 1344 flow [2023-08-26 21:24:03,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 115 transitions, 1340 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-26 21:24:03,904 INFO L231 Difference]: Finished difference. Result has 66 places, 73 transitions, 1024 flow [2023-08-26 21:24:03,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1024, PETRI_PLACES=66, PETRI_TRANSITIONS=73} [2023-08-26 21:24:03,905 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2023-08-26 21:24:03,906 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 73 transitions, 1024 flow [2023-08-26 21:24:03,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:03,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:03,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 21:24:03,906 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:03,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2104278102, now seen corresponding path program 2 times [2023-08-26 21:24:03,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:03,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6864706] [2023-08-26 21:24:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:03,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:03,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:03,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6864706] [2023-08-26 21:24:03,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6864706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:03,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:24:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103525760] [2023-08-26 21:24:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:03,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:03,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:03,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:03,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 73 transitions, 1024 flow. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:03,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:03,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:03,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:04,311 INFO L124 PetriNetUnfolderBase]: 1482/2554 cut-off events. [2023-08-26 21:24:04,312 INFO L125 PetriNetUnfolderBase]: For 17813/17813 co-relation queries the response was YES. [2023-08-26 21:24:04,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13657 conditions, 2554 events. 1482/2554 cut-off events. For 17813/17813 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 15203 event pairs, 218 based on Foata normal form. 15/2446 useless extension candidates. Maximal degree in co-relation 13620. Up to 869 conditions per place. [2023-08-26 21:24:04,327 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 100 selfloop transitions, 34 changer transitions 12/146 dead transitions. [2023-08-26 21:24:04,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 146 transitions, 1793 flow [2023-08-26 21:24:04,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 21:24:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 21:24:04,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 508 transitions. [2023-08-26 21:24:04,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4729981378026071 [2023-08-26 21:24:04,329 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 508 transitions. [2023-08-26 21:24:04,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 508 transitions. [2023-08-26 21:24:04,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:04,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 508 transitions. [2023-08-26 21:24:04,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,333 INFO L175 Difference]: Start difference. First operand has 66 places, 73 transitions, 1024 flow. Second operand 6 states and 508 transitions. [2023-08-26 21:24:04,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 146 transitions, 1793 flow [2023-08-26 21:24:04,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 146 transitions, 1787 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:04,382 INFO L231 Difference]: Finished difference. Result has 73 places, 78 transitions, 1246 flow [2023-08-26 21:24:04,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1246, PETRI_PLACES=73, PETRI_TRANSITIONS=78} [2023-08-26 21:24:04,383 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 39 predicate places. [2023-08-26 21:24:04,383 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 78 transitions, 1246 flow [2023-08-26 21:24:04,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:04,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:04,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 21:24:04,384 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:04,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:04,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2103340662, now seen corresponding path program 3 times [2023-08-26 21:24:04,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:04,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676466506] [2023-08-26 21:24:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:04,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:04,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:04,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676466506] [2023-08-26 21:24:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676466506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:04,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267171278] [2023-08-26 21:24:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:04,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:04,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:04,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 179 [2023-08-26 21:24:04,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 78 transitions, 1246 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:04,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 179 [2023-08-26 21:24:04,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:04,777 INFO L124 PetriNetUnfolderBase]: 843/1776 cut-off events. [2023-08-26 21:24:04,777 INFO L125 PetriNetUnfolderBase]: For 28361/28964 co-relation queries the response was YES. [2023-08-26 21:24:04,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9361 conditions, 1776 events. 843/1776 cut-off events. For 28361/28964 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 13594 event pairs, 219 based on Foata normal form. 580/2124 useless extension candidates. Maximal degree in co-relation 9320. Up to 1228 conditions per place. [2023-08-26 21:24:04,788 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 86 selfloop transitions, 8 changer transitions 3/125 dead transitions. [2023-08-26 21:24:04,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 125 transitions, 1981 flow [2023-08-26 21:24:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2023-08-26 21:24:04,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47262569832402235 [2023-08-26 21:24:04,790 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2023-08-26 21:24:04,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2023-08-26 21:24:04,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:04,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2023-08-26 21:24:04,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,794 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,794 INFO L175 Difference]: Start difference. First operand has 73 places, 78 transitions, 1246 flow. Second operand 5 states and 423 transitions. [2023-08-26 21:24:04,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 125 transitions, 1981 flow [2023-08-26 21:24:04,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 125 transitions, 1969 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:04,827 INFO L231 Difference]: Finished difference. Result has 79 places, 81 transitions, 1335 flow [2023-08-26 21:24:04,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1335, PETRI_PLACES=79, PETRI_TRANSITIONS=81} [2023-08-26 21:24:04,828 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 45 predicate places. [2023-08-26 21:24:04,828 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 1335 flow [2023-08-26 21:24:04,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:04,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:04,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 21:24:04,829 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:04,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:04,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1691920468, now seen corresponding path program 1 times [2023-08-26 21:24:04,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918383754] [2023-08-26 21:24:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:04,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918383754] [2023-08-26 21:24:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918383754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693320505] [2023-08-26 21:24:04,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:04,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:04,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:04,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:04,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 179 [2023-08-26 21:24:04,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 1335 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:04,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:04,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 179 [2023-08-26 21:24:04,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:05,141 INFO L124 PetriNetUnfolderBase]: 593/1428 cut-off events. [2023-08-26 21:24:05,141 INFO L125 PetriNetUnfolderBase]: For 28575/29186 co-relation queries the response was YES. [2023-08-26 21:24:05,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7683 conditions, 1428 events. 593/1428 cut-off events. For 28575/29186 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 11654 event pairs, 109 based on Foata normal form. 585/1795 useless extension candidates. Maximal degree in co-relation 7637. Up to 651 conditions per place. [2023-08-26 21:24:05,149 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 91 selfloop transitions, 15 changer transitions 3/136 dead transitions. [2023-08-26 21:24:05,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 136 transitions, 2194 flow [2023-08-26 21:24:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:24:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:24:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 588 transitions. [2023-08-26 21:24:05,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4692737430167598 [2023-08-26 21:24:05,152 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 588 transitions. [2023-08-26 21:24:05,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 588 transitions. [2023-08-26 21:24:05,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:05,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 588 transitions. [2023-08-26 21:24:05,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,155 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,156 INFO L175 Difference]: Start difference. First operand has 79 places, 81 transitions, 1335 flow. Second operand 7 states and 588 transitions. [2023-08-26 21:24:05,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 136 transitions, 2194 flow [2023-08-26 21:24:05,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 2183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:05,184 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 1389 flow [2023-08-26 21:24:05,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1389, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2023-08-26 21:24:05,185 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 52 predicate places. [2023-08-26 21:24:05,185 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 1389 flow [2023-08-26 21:24:05,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:05,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:05,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 21:24:05,186 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:05,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash -114533621, now seen corresponding path program 1 times [2023-08-26 21:24:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488914300] [2023-08-26 21:24:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:05,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:05,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488914300] [2023-08-26 21:24:05,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488914300] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:05,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:05,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:05,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666085836] [2023-08-26 21:24:05,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:05,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:05,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:05,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:05,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:05,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:05,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 1389 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:05,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:05,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:05,405 INFO L124 PetriNetUnfolderBase]: 542/1217 cut-off events. [2023-08-26 21:24:05,405 INFO L125 PetriNetUnfolderBase]: For 15059/15511 co-relation queries the response was YES. [2023-08-26 21:24:05,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7719 conditions, 1217 events. 542/1217 cut-off events. For 15059/15511 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9186 event pairs, 60 based on Foata normal form. 223/1394 useless extension candidates. Maximal degree in co-relation 7670. Up to 476 conditions per place. [2023-08-26 21:24:05,410 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 17 selfloop transitions, 10 changer transitions 81/111 dead transitions. [2023-08-26 21:24:05,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 111 transitions, 2078 flow [2023-08-26 21:24:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 426 transitions. [2023-08-26 21:24:05,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4759776536312849 [2023-08-26 21:24:05,412 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 426 transitions. [2023-08-26 21:24:05,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 426 transitions. [2023-08-26 21:24:05,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:05,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 426 transitions. [2023-08-26 21:24:05,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,415 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,415 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 1389 flow. Second operand 5 states and 426 transitions. [2023-08-26 21:24:05,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 111 transitions, 2078 flow [2023-08-26 21:24:05,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 111 transitions, 2051 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-26 21:24:05,451 INFO L231 Difference]: Finished difference. Result has 83 places, 23 transitions, 223 flow [2023-08-26 21:24:05,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1344, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=83, PETRI_TRANSITIONS=23} [2023-08-26 21:24:05,451 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 49 predicate places. [2023-08-26 21:24:05,451 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 23 transitions, 223 flow [2023-08-26 21:24:05,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:05,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:05,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 21:24:05,452 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:05,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1670683723, now seen corresponding path program 1 times [2023-08-26 21:24:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:05,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769397897] [2023-08-26 21:24:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:05,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:05,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769397897] [2023-08-26 21:24:05,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769397897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:05,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:05,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:24:05,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238398728] [2023-08-26 21:24:05,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:05,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 21:24:05,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 21:24:05,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 21:24:05,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 179 [2023-08-26 21:24:05,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 23 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 77.16666666666667) internal successors, (463), 6 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:05,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 179 [2023-08-26 21:24:05,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:05,598 INFO L124 PetriNetUnfolderBase]: 17/52 cut-off events. [2023-08-26 21:24:05,598 INFO L125 PetriNetUnfolderBase]: For 643/654 co-relation queries the response was YES. [2023-08-26 21:24:05,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 52 events. 17/52 cut-off events. For 643/654 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 2 based on Foata normal form. 8/58 useless extension candidates. Maximal degree in co-relation 270. Up to 15 conditions per place. [2023-08-26 21:24:05,598 INFO L140 encePairwiseOnDemand]: 173/179 looper letters, 15 selfloop transitions, 10 changer transitions 5/33 dead transitions. [2023-08-26 21:24:05,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 33 transitions, 357 flow [2023-08-26 21:24:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:24:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:24:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 557 transitions. [2023-08-26 21:24:05,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44453312051077415 [2023-08-26 21:24:05,601 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 557 transitions. [2023-08-26 21:24:05,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 557 transitions. [2023-08-26 21:24:05,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:05,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 557 transitions. [2023-08-26 21:24:05,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,604 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,605 INFO L175 Difference]: Start difference. First operand has 83 places, 23 transitions, 223 flow. Second operand 7 states and 557 transitions. [2023-08-26 21:24:05,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 33 transitions, 357 flow [2023-08-26 21:24:05,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 196 flow, removed 27 selfloop flow, removed 42 redundant places. [2023-08-26 21:24:05,607 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 129 flow [2023-08-26 21:24:05,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2023-08-26 21:24:05,607 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-26 21:24:05,608 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 129 flow [2023-08-26 21:24:05,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.16666666666667) internal successors, (463), 6 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:05,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:05,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 21:24:05,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:05,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash 714728703, now seen corresponding path program 1 times [2023-08-26 21:24:05,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:05,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45429039] [2023-08-26 21:24:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:05,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:05,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:05,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45429039] [2023-08-26 21:24:05,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45429039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:05,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:05,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910964463] [2023-08-26 21:24:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:05,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:05,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:05,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:05,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 179 [2023-08-26 21:24:05,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:05,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 179 [2023-08-26 21:24:05,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:05,738 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-26 21:24:05,738 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-08-26 21:24:05,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 55 events. 21/55 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 4 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 222. Up to 35 conditions per place. [2023-08-26 21:24:05,738 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-26 21:24:05,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 28 transitions, 215 flow [2023-08-26 21:24:05,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 371 transitions. [2023-08-26 21:24:05,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4145251396648045 [2023-08-26 21:24:05,740 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 371 transitions. [2023-08-26 21:24:05,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 371 transitions. [2023-08-26 21:24:05,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:05,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 371 transitions. [2023-08-26 21:24:05,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,744 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,744 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 129 flow. Second operand 5 states and 371 transitions. [2023-08-26 21:24:05,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 28 transitions, 215 flow [2023-08-26 21:24:05,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 185 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 21:24:05,745 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-26 21:24:05,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-26 21:24:05,746 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2023-08-26 21:24:05,746 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-26 21:24:05,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:05,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-26 21:24:05,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-26 21:24:05,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-26 21:24:05,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-26 21:24:05,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-26 21:24:05,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-26 21:24:05,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-26 21:24:05,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-26 21:24:05,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 21:24:05,751 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:05,755 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:24:05,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:24:05,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:24:05 BasicIcfg [2023-08-26 21:24:05,757 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:24:05,757 INFO L158 Benchmark]: Toolchain (without parser) took 8700.76ms. Allocated memory was 360.7MB in the beginning and 610.3MB in the end (delta: 249.6MB). Free memory was 317.5MB in the beginning and 465.8MB in the end (delta: -148.4MB). Peak memory consumption was 102.3MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,758 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory was 338.4MB in the beginning and 338.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:24:05,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.85ms. Allocated memory is still 360.7MB. Free memory was 316.4MB in the beginning and 296.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.99ms. Allocated memory is still 360.7MB. Free memory was 296.5MB in the beginning and 294.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,758 INFO L158 Benchmark]: Boogie Preprocessor took 32.18ms. Allocated memory is still 360.7MB. Free memory was 294.4MB in the beginning and 293.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,759 INFO L158 Benchmark]: RCFGBuilder took 345.19ms. Allocated memory is still 360.7MB. Free memory was 293.4MB in the beginning and 276.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,759 INFO L158 Benchmark]: TraceAbstraction took 7774.19ms. Allocated memory was 360.7MB in the beginning and 610.3MB in the end (delta: 249.6MB). Free memory was 275.5MB in the beginning and 465.8MB in the end (delta: -190.3MB). Peak memory consumption was 62.4MB. Max. memory is 16.0GB. [2023-08-26 21:24:05,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory was 338.4MB in the beginning and 338.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 499.85ms. Allocated memory is still 360.7MB. Free memory was 316.4MB in the beginning and 296.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.99ms. Allocated memory is still 360.7MB. Free memory was 296.5MB in the beginning and 294.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.18ms. Allocated memory is still 360.7MB. Free memory was 294.4MB in the beginning and 293.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 345.19ms. Allocated memory is still 360.7MB. Free memory was 293.4MB in the beginning and 276.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 7774.19ms. Allocated memory was 360.7MB in the beginning and 610.3MB in the end (delta: 249.6MB). Free memory was 275.5MB in the beginning and 465.8MB in the end (delta: -190.3MB). Peak memory consumption was 62.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 99 PlacesBefore, 34 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 84 TotalNumberOfCompositions, 6787 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3130, independent: 2918, independent conditional: 0, independent unconditional: 2918, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1263, independent: 1216, independent conditional: 0, independent unconditional: 1216, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3130, independent: 1702, independent conditional: 0, independent unconditional: 1702, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 1263, unknown conditional: 0, unknown unconditional: 1263] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 123 locations, 16 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: 7.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 354 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 918 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 33 mSDtfsCounter, 918 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1389occurred in iteration=13, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 21:24:05,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...