/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/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:22:11,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:22:11,652 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 21:22:11,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:22:11,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:22:11,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:22:11,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:22:11,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:22:11,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:22:11,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:22:11,703 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:22:11,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:22:11,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:22:11,704 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:22:11,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:22:11,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:22:11,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:22:11,707 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:22:11,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:22:11,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:22:11,707 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:22:11,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:22:11,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:22:11,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:22:11,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:22:11,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:22:11,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:22:11,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:22:11,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:22:11,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:22:11,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:22:11,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:22:12,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:22:12,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:22:12,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:22:12,018 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:22:12,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-08-26 21:22:13,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:22:13,602 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:22:13,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-08-26 21:22:13,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f04e4dbf/a2fbac0e8f324cb586aed759e0cbae39/FLAGeb3eaa459 [2023-08-26 21:22:13,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f04e4dbf/a2fbac0e8f324cb586aed759e0cbae39 [2023-08-26 21:22:13,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:22:13,658 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:22:13,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:22:13,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:22:13,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:22:13,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:22:13" (1/1) ... [2023-08-26 21:22:13,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a29088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:13, skipping insertion in model container [2023-08-26 21:22:13,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:22:13" (1/1) ... [2023-08-26 21:22:13,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:22:14,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:22:14,062 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:22:14,092 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:22:14,094 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:22:14,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:22:14,183 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:22:14,183 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:22:14,188 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:22:14,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14 WrapperNode [2023-08-26 21:22:14,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:22:14,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:22:14,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:22:14,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:22:14,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,236 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 179 [2023-08-26 21:22:14,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:22:14,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:22:14,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:22:14,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:22:14,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:22:14,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:22:14,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:22:14,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:22:14,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (1/1) ... [2023-08-26 21:22:14,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:22:14,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:22:14,306 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 21:22:14,333 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 21:22:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:22:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:22:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:22:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:22:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:22:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:22:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:22:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:22:14,347 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 21:22:14,474 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:22:14,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:22:14,804 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:22:14,995 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:22:14,995 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:22:14,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:22:14 BoogieIcfgContainer [2023-08-26 21:22:14,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:22:14,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:22:14,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:22:15,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:22:15,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:22:13" (1/3) ... [2023-08-26 21:22:15,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea089f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:22:15, skipping insertion in model container [2023-08-26 21:22:15,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:22:14" (2/3) ... [2023-08-26 21:22:15,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea089f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:22:15, skipping insertion in model container [2023-08-26 21:22:15,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:22:14" (3/3) ... [2023-08-26 21:22:15,005 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-08-26 21:22:15,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:22:15,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-26 21:22:15,021 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:22:15,070 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:22:15,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 210 flow [2023-08-26 21:22:15,164 INFO L124 PetriNetUnfolderBase]: 3/98 cut-off events. [2023-08-26 21:22:15,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:22:15,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 3/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-08-26 21:22:15,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 210 flow [2023-08-26 21:22:15,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 98 transitions, 202 flow [2023-08-26 21:22:15,178 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:22:15,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 98 transitions, 202 flow [2023-08-26 21:22:15,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 98 transitions, 202 flow [2023-08-26 21:22:15,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 98 transitions, 202 flow [2023-08-26 21:22:15,230 INFO L124 PetriNetUnfolderBase]: 3/98 cut-off events. [2023-08-26 21:22:15,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:22:15,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 3/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-08-26 21:22:15,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 1744 [2023-08-26 21:22:18,708 INFO L134 LiptonReduction]: Checked pairs total: 7151 [2023-08-26 21:22:18,708 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-26 21:22:18,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:22:18,725 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;@c5cac0c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:22:18,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-26 21:22:18,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:22:18,728 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-26 21:22:18,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:22:18,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:18,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 21:22:18,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:18,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:18,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1049194629, now seen corresponding path program 1 times [2023-08-26 21:22:18,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:18,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665295103] [2023-08-26 21:22:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:18,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:19,170 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 21:22:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665295103] [2023-08-26 21:22:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665295103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:19,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:19,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:22:19,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391132608] [2023-08-26 21:22:19,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:19,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:22:19,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:19,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:22:19,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:22:19,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 190 [2023-08-26 21:22:19,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 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 21:22:19,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:19,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 190 [2023-08-26 21:22:19,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:19,451 INFO L124 PetriNetUnfolderBase]: 373/662 cut-off events. [2023-08-26 21:22:19,451 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-26 21:22:19,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 662 events. 373/662 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2956 event pairs, 79 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1296. Up to 475 conditions per place. [2023-08-26 21:22:19,462 INFO L140 encePairwiseOnDemand]: 187/190 looper letters, 27 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2023-08-26 21:22:19,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 128 flow [2023-08-26 21:22:19,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:22:19,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:22:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2023-08-26 21:22:19,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2023-08-26 21:22:19,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2023-08-26 21:22:19,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2023-08-26 21:22:19,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:19,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2023-08-26 21:22:19,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 21:22:19,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 21:22:19,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 21:22:19,484 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 3 states and 270 transitions. [2023-08-26 21:22:19,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 128 flow [2023-08-26 21:22:19,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:22:19,487 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 54 flow [2023-08-26 21:22:19,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-08-26 21:22:19,492 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-26 21:22:19,492 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 54 flow [2023-08-26 21:22:19,492 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 21:22:19,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:19,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:19,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:22:19,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:19,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:19,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1834739724, now seen corresponding path program 1 times [2023-08-26 21:22:19,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:19,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788507964] [2023-08-26 21:22:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:20,209 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 21:22:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:20,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788507964] [2023-08-26 21:22:20,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788507964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:20,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:20,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:22:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048981206] [2023-08-26 21:22:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:20,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:22:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:22:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:22:20,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 190 [2023-08-26 21:22:20,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 21:22:20,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:20,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 190 [2023-08-26 21:22:20,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:20,414 INFO L124 PetriNetUnfolderBase]: 407/741 cut-off events. [2023-08-26 21:22:20,415 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-26 21:22:20,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1491 conditions, 741 events. 407/741 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3274 event pairs, 186 based on Foata normal form. 0/629 useless extension candidates. Maximal degree in co-relation 1481. Up to 361 conditions per place. [2023-08-26 21:22:20,419 INFO L140 encePairwiseOnDemand]: 181/190 looper letters, 31 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-26 21:22:20,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 41 transitions, 168 flow [2023-08-26 21:22:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:22:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:22:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2023-08-26 21:22:20,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41578947368421054 [2023-08-26 21:22:20,422 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 316 transitions. [2023-08-26 21:22:20,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 316 transitions. [2023-08-26 21:22:20,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:20,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 316 transitions. [2023-08-26 21:22:20,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 21:22:20,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:20,427 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:20,427 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 54 flow. Second operand 4 states and 316 transitions. [2023-08-26 21:22:20,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 41 transitions, 168 flow [2023-08-26 21:22:20,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:22:20,428 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 108 flow [2023-08-26 21:22:20,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-08-26 21:22:20,429 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-26 21:22:20,429 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 108 flow [2023-08-26 21:22:20,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 21:22:20,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:20,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:22:20,430 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:20,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1799859172, now seen corresponding path program 1 times [2023-08-26 21:22:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862276139] [2023-08-26 21:22:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:20,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:20,480 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 21:22:20,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:20,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862276139] [2023-08-26 21:22:20,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862276139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:20,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:20,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:22:20,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589601278] [2023-08-26 21:22:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:20,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:22:20,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:20,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:22:20,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:22:20,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 190 [2023-08-26 21:22:20,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 21:22:20,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:20,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 190 [2023-08-26 21:22:20,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:20,661 INFO L124 PetriNetUnfolderBase]: 262/479 cut-off events. [2023-08-26 21:22:20,661 INFO L125 PetriNetUnfolderBase]: For 205/231 co-relation queries the response was YES. [2023-08-26 21:22:20,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 479 events. 262/479 cut-off events. For 205/231 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1980 event pairs, 142 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 1252. Up to 279 conditions per place. [2023-08-26 21:22:20,664 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 45 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-08-26 21:22:20,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 50 transitions, 284 flow [2023-08-26 21:22:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:22:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:22:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-08-26 21:22:20,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4789473684210526 [2023-08-26 21:22:20,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-08-26 21:22:20,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-08-26 21:22:20,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:20,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-08-26 21:22:20,668 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 21:22:20,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 21:22:20,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 21:22:20,672 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 108 flow. Second operand 3 states and 273 transitions. [2023-08-26 21:22:20,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 50 transitions, 284 flow [2023-08-26 21:22:20,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 281 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:22:20,675 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 131 flow [2023-08-26 21:22:20,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2023-08-26 21:22:20,676 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2023-08-26 21:22:20,677 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 131 flow [2023-08-26 21:22:20,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 21:22:20,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:20,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:20,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:22:20,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:20,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 685420799, now seen corresponding path program 1 times [2023-08-26 21:22:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062088653] [2023-08-26 21:22:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:20,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:21,383 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 21:22:21,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:21,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062088653] [2023-08-26 21:22:21,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062088653] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:21,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:21,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 21:22:21,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673358876] [2023-08-26 21:22:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:21,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 21:22:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 21:22:21,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-26 21:22:21,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 190 [2023-08-26 21:22:21,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 131 flow. Second operand has 8 states, 8 states have (on average 70.375) internal successors, (563), 8 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 21:22:21,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:21,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 190 [2023-08-26 21:22:21,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:21,578 INFO L124 PetriNetUnfolderBase]: 278/513 cut-off events. [2023-08-26 21:22:21,578 INFO L125 PetriNetUnfolderBase]: For 206/229 co-relation queries the response was YES. [2023-08-26 21:22:21,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 513 events. 278/513 cut-off events. For 206/229 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2121 event pairs, 149 based on Foata normal form. 3/485 useless extension candidates. Maximal degree in co-relation 1508. Up to 458 conditions per place. [2023-08-26 21:22:21,582 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 41 selfloop transitions, 6 changer transitions 0/49 dead transitions. [2023-08-26 21:22:21,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 289 flow [2023-08-26 21:22:21,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:22:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:22:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2023-08-26 21:22:21,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131578947368421 [2023-08-26 21:22:21,584 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2023-08-26 21:22:21,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2023-08-26 21:22:21,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:21,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2023-08-26 21:22:21,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 21:22:21,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:21,588 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:21,588 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 131 flow. Second operand 4 states and 314 transitions. [2023-08-26 21:22:21,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 49 transitions, 289 flow [2023-08-26 21:22:21,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:22:21,592 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 175 flow [2023-08-26 21:22:21,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-08-26 21:22:21,593 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-08-26 21:22:21,593 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 175 flow [2023-08-26 21:22:21,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.375) internal successors, (563), 8 states have internal predecessors, (563), 0 states have call successors, (0), 0 states 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 21:22:21,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:21,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:21,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:22:21,594 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:21,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash 760494119, now seen corresponding path program 2 times [2023-08-26 21:22:21,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:21,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855593377] [2023-08-26 21:22:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:21,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:22,227 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 21:22:22,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:22,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855593377] [2023-08-26 21:22:22,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855593377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:22,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:22,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 21:22:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188461941] [2023-08-26 21:22:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:22,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 21:22:22,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:22,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 21:22:22,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-08-26 21:22:22,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 190 [2023-08-26 21:22:22,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 175 flow. Second operand has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 21:22:22,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:22,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 190 [2023-08-26 21:22:22,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:22,431 INFO L124 PetriNetUnfolderBase]: 273/505 cut-off events. [2023-08-26 21:22:22,435 INFO L125 PetriNetUnfolderBase]: For 350/373 co-relation queries the response was YES. [2023-08-26 21:22:22,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 505 events. 273/505 cut-off events. For 350/373 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2081 event pairs, 147 based on Foata normal form. 3/477 useless extension candidates. Maximal degree in co-relation 1579. Up to 427 conditions per place. [2023-08-26 21:22:22,439 INFO L140 encePairwiseOnDemand]: 186/190 looper letters, 41 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2023-08-26 21:22:22,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 336 flow [2023-08-26 21:22:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:22:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:22:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-08-26 21:22:22,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4236842105263158 [2023-08-26 21:22:22,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-08-26 21:22:22,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-08-26 21:22:22,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:22,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-08-26 21:22:22,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 21:22:22,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:22,445 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:22,445 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 175 flow. Second operand 4 states and 322 transitions. [2023-08-26 21:22:22,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 336 flow [2023-08-26 21:22:22,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 334 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-26 21:22:22,451 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 216 flow [2023-08-26 21:22:22,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-08-26 21:22:22,453 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2023-08-26 21:22:22,453 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 216 flow [2023-08-26 21:22:22,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 21:22:22,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:22,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:22,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:22:22,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:22,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:22,454 INFO L85 PathProgramCache]: Analyzing trace with hash 871897249, now seen corresponding path program 1 times [2023-08-26 21:22:22,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:22,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848973466] [2023-08-26 21:22:22,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:22,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:22,654 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 21:22:22,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:22,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848973466] [2023-08-26 21:22:22,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848973466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:22,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:22,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:22:22,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214846691] [2023-08-26 21:22:22,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:22,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:22:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:22,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:22:22,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:22:22,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 190 [2023-08-26 21:22:22,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 21:22:22,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:22,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 190 [2023-08-26 21:22:22,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:22,838 INFO L124 PetriNetUnfolderBase]: 133/294 cut-off events. [2023-08-26 21:22:22,838 INFO L125 PetriNetUnfolderBase]: For 288/303 co-relation queries the response was YES. [2023-08-26 21:22:22,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 294 events. 133/294 cut-off events. For 288/303 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1202 event pairs, 38 based on Foata normal form. 41/303 useless extension candidates. Maximal degree in co-relation 943. Up to 145 conditions per place. [2023-08-26 21:22:22,841 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 60 selfloop transitions, 6 changer transitions 2/70 dead transitions. [2023-08-26 21:22:22,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 70 transitions, 479 flow [2023-08-26 21:22:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:22:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:22:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 426 transitions. [2023-08-26 21:22:22,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44842105263157894 [2023-08-26 21:22:22,843 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 426 transitions. [2023-08-26 21:22:22,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 426 transitions. [2023-08-26 21:22:22,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 426 transitions. [2023-08-26 21:22:22,845 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 21:22:22,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states 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 21:22:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states 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 21:22:22,848 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 216 flow. Second operand 5 states and 426 transitions. [2023-08-26 21:22:22,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 70 transitions, 479 flow [2023-08-26 21:22:22,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 70 transitions, 429 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-26 21:22:22,851 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 187 flow [2023-08-26 21:22:22,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-26 21:22:22,854 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2023-08-26 21:22:22,854 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 187 flow [2023-08-26 21:22:22,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 21:22:22,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:22,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:22,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:22:22,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:22,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash -427197412, now seen corresponding path program 1 times [2023-08-26 21:22:22,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:22,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821736285] [2023-08-26 21:22:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:22,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:24,264 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 21:22:24,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:24,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821736285] [2023-08-26 21:22:24,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821736285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:24,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:24,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 21:22:24,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125063222] [2023-08-26 21:22:24,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:24,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 21:22:24,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 21:22:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-26 21:22:24,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 190 [2023-08-26 21:22:24,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 187 flow. Second operand has 9 states, 9 states have (on average 71.55555555555556) internal successors, (644), 9 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 21:22:24,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:24,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 190 [2023-08-26 21:22:24,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:25,184 INFO L124 PetriNetUnfolderBase]: 251/650 cut-off events. [2023-08-26 21:22:25,184 INFO L125 PetriNetUnfolderBase]: For 726/757 co-relation queries the response was YES. [2023-08-26 21:22:25,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2190 conditions, 650 events. 251/650 cut-off events. For 726/757 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3932 event pairs, 39 based on Foata normal form. 13/604 useless extension candidates. Maximal degree in co-relation 2168. Up to 206 conditions per place. [2023-08-26 21:22:25,189 INFO L140 encePairwiseOnDemand]: 181/190 looper letters, 96 selfloop transitions, 26 changer transitions 3/129 dead transitions. [2023-08-26 21:22:25,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 129 transitions, 913 flow [2023-08-26 21:22:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 21:22:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 21:22:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 860 transitions. [2023-08-26 21:22:25,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41148325358851673 [2023-08-26 21:22:25,193 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 860 transitions. [2023-08-26 21:22:25,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 860 transitions. [2023-08-26 21:22:25,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:25,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 860 transitions. [2023-08-26 21:22:25,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.18181818181819) internal successors, (860), 11 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 21:22:25,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states 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 21:22:25,199 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states 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 21:22:25,199 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 187 flow. Second operand 11 states and 860 transitions. [2023-08-26 21:22:25,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 129 transitions, 913 flow [2023-08-26 21:22:25,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 129 transitions, 881 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:22:25,205 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 384 flow [2023-08-26 21:22:25,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=384, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2023-08-26 21:22:25,209 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2023-08-26 21:22:25,209 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 384 flow [2023-08-26 21:22:25,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.55555555555556) internal successors, (644), 9 states have internal predecessors, (644), 0 states have call successors, (0), 0 states 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 21:22:25,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:25,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:25,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:22:25,211 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:25,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1333462272, now seen corresponding path program 2 times [2023-08-26 21:22:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:25,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791583484] [2023-08-26 21:22:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:26,386 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 21:22:26,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:26,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791583484] [2023-08-26 21:22:26,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791583484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:26,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:26,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 21:22:26,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844449233] [2023-08-26 21:22:26,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:26,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 21:22:26,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:26,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 21:22:26,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-26 21:22:26,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 190 [2023-08-26 21:22:26,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 384 flow. Second operand has 9 states, 9 states have (on average 70.55555555555556) internal successors, (635), 9 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 21:22:26,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:26,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 190 [2023-08-26 21:22:26,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:26,822 INFO L124 PetriNetUnfolderBase]: 297/762 cut-off events. [2023-08-26 21:22:26,823 INFO L125 PetriNetUnfolderBase]: For 1497/1545 co-relation queries the response was YES. [2023-08-26 21:22:26,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 762 events. 297/762 cut-off events. For 1497/1545 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4911 event pairs, 87 based on Foata normal form. 14/702 useless extension candidates. Maximal degree in co-relation 2992. Up to 332 conditions per place. [2023-08-26 21:22:26,829 INFO L140 encePairwiseOnDemand]: 182/190 looper letters, 74 selfloop transitions, 28 changer transitions 1/107 dead transitions. [2023-08-26 21:22:26,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 107 transitions, 883 flow [2023-08-26 21:22:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:22:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:22:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 543 transitions. [2023-08-26 21:22:26,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40827067669172934 [2023-08-26 21:22:26,831 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 543 transitions. [2023-08-26 21:22:26,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 543 transitions. [2023-08-26 21:22:26,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:26,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 543 transitions. [2023-08-26 21:22:26,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.57142857142857) internal successors, (543), 7 states have internal predecessors, (543), 0 states have call successors, (0), 0 states 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 21:22:26,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states 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 21:22:26,835 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states 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 21:22:26,836 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 384 flow. Second operand 7 states and 543 transitions. [2023-08-26 21:22:26,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 107 transitions, 883 flow [2023-08-26 21:22:26,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 107 transitions, 858 flow, removed 11 selfloop flow, removed 1 redundant places. [2023-08-26 21:22:26,844 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 525 flow [2023-08-26 21:22:26,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=525, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2023-08-26 21:22:26,844 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2023-08-26 21:22:26,845 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 525 flow [2023-08-26 21:22:26,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.55555555555556) internal successors, (635), 9 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 21:22:26,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:26,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:26,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 21:22:26,845 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:26,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1950401118, now seen corresponding path program 3 times [2023-08-26 21:22:26,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:26,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457589004] [2023-08-26 21:22:26,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:26,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:27,005 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 21:22:27,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457589004] [2023-08-26 21:22:27,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457589004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:27,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:27,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:22:27,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709406522] [2023-08-26 21:22:27,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:22:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:27,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:22:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:22:27,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 190 [2023-08-26 21:22:27,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 525 flow. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 21:22:27,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:27,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 190 [2023-08-26 21:22:27,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:27,185 INFO L124 PetriNetUnfolderBase]: 205/498 cut-off events. [2023-08-26 21:22:27,186 INFO L125 PetriNetUnfolderBase]: For 1588/1613 co-relation queries the response was YES. [2023-08-26 21:22:27,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2198 conditions, 498 events. 205/498 cut-off events. For 1588/1613 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2890 event pairs, 18 based on Foata normal form. 47/508 useless extension candidates. Maximal degree in co-relation 2177. Up to 154 conditions per place. [2023-08-26 21:22:27,190 INFO L140 encePairwiseOnDemand]: 183/190 looper letters, 104 selfloop transitions, 9 changer transitions 3/117 dead transitions. [2023-08-26 21:22:27,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 117 transitions, 1145 flow [2023-08-26 21:22:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:22:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:22:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2023-08-26 21:22:27,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43082706766917295 [2023-08-26 21:22:27,192 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2023-08-26 21:22:27,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2023-08-26 21:22:27,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:27,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2023-08-26 21:22:27,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 0 states have call successors, (0), 0 states 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 21:22:27,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states 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 21:22:27,196 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states 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 21:22:27,196 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 525 flow. Second operand 7 states and 573 transitions. [2023-08-26 21:22:27,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 117 transitions, 1145 flow [2023-08-26 21:22:27,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 117 transitions, 1041 flow, removed 13 selfloop flow, removed 6 redundant places. [2023-08-26 21:22:27,203 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 351 flow [2023-08-26 21:22:27,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=351, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2023-08-26 21:22:27,203 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2023-08-26 21:22:27,203 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 351 flow [2023-08-26 21:22:27,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 21:22:27,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:27,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:27,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 21:22:27,204 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:27,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:27,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1689690470, now seen corresponding path program 1 times [2023-08-26 21:22:27,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:27,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579357441] [2023-08-26 21:22:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:27,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:27,254 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 21:22:27,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:27,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579357441] [2023-08-26 21:22:27,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579357441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:27,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:27,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:22:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099858040] [2023-08-26 21:22:27,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:27,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:22:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:22:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:22:27,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 190 [2023-08-26 21:22:27,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 21:22:27,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:27,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 190 [2023-08-26 21:22:27,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:27,412 INFO L124 PetriNetUnfolderBase]: 183/433 cut-off events. [2023-08-26 21:22:27,412 INFO L125 PetriNetUnfolderBase]: For 1579/1604 co-relation queries the response was YES. [2023-08-26 21:22:27,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2060 conditions, 433 events. 183/433 cut-off events. For 1579/1604 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2320 event pairs, 83 based on Foata normal form. 30/455 useless extension candidates. Maximal degree in co-relation 2039. Up to 228 conditions per place. [2023-08-26 21:22:27,415 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 35 selfloop transitions, 3 changer transitions 25/64 dead transitions. [2023-08-26 21:22:27,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 593 flow [2023-08-26 21:22:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:22:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:22:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-26 21:22:27,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2023-08-26 21:22:27,417 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-26 21:22:27,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-26 21:22:27,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:27,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-26 21:22:27,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 21:22:27,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:27,419 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:27,419 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 351 flow. Second operand 4 states and 340 transitions. [2023-08-26 21:22:27,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 593 flow [2023-08-26 21:22:27,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 566 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-26 21:22:27,425 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 217 flow [2023-08-26 21:22:27,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2023-08-26 21:22:27,426 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2023-08-26 21:22:27,426 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 217 flow [2023-08-26 21:22:27,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 21:22:27,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:27,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:27,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 21:22:27,427 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:27,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:27,427 INFO L85 PathProgramCache]: Analyzing trace with hash 41329998, now seen corresponding path program 1 times [2023-08-26 21:22:27,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:27,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19024221] [2023-08-26 21:22:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:27,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:27,607 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 21:22:27,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:27,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19024221] [2023-08-26 21:22:27,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19024221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:27,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:27,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:22:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632047947] [2023-08-26 21:22:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:27,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:22:27,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:22:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:22:27,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 190 [2023-08-26 21:22:27,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:22:27,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:27,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 190 [2023-08-26 21:22:27,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:27,701 INFO L124 PetriNetUnfolderBase]: 45/130 cut-off events. [2023-08-26 21:22:27,701 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2023-08-26 21:22:27,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 130 events. 45/130 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 437 event pairs, 18 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 549. Up to 57 conditions per place. [2023-08-26 21:22:27,702 INFO L140 encePairwiseOnDemand]: 187/190 looper letters, 19 selfloop transitions, 1 changer transitions 30/50 dead transitions. [2023-08-26 21:22:27,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 437 flow [2023-08-26 21:22:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:22:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:22:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2023-08-26 21:22:27,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4486842105263158 [2023-08-26 21:22:27,704 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 341 transitions. [2023-08-26 21:22:27,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 341 transitions. [2023-08-26 21:22:27,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:27,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 341 transitions. [2023-08-26 21:22:27,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:22:27,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:27,707 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:22:27,707 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 217 flow. Second operand 4 states and 341 transitions. [2023-08-26 21:22:27,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 437 flow [2023-08-26 21:22:27,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 362 flow, removed 17 selfloop flow, removed 9 redundant places. [2023-08-26 21:22:27,709 INFO L231 Difference]: Finished difference. Result has 51 places, 20 transitions, 99 flow [2023-08-26 21:22:27,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=51, PETRI_TRANSITIONS=20} [2023-08-26 21:22:27,710 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2023-08-26 21:22:27,710 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 20 transitions, 99 flow [2023-08-26 21:22:27,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:22:27,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:22:27,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:22:27,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 21:22:27,710 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-08-26 21:22:27,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:22:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash -869052724, now seen corresponding path program 2 times [2023-08-26 21:22:27,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:22:27,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334626050] [2023-08-26 21:22:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:22:27,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:22:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:22:28,855 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 21:22:28,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:22:28,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334626050] [2023-08-26 21:22:28,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334626050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:22:28,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:22:28,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 21:22:28,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808697098] [2023-08-26 21:22:28,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:22:28,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 21:22:28,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:22:28,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 21:22:28,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-26 21:22:28,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 190 [2023-08-26 21:22:28,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 20 transitions, 99 flow. Second operand has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 0 states have call successors, (0), 0 states 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 21:22:28,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:22:28,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 190 [2023-08-26 21:22:28,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:22:28,942 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2023-08-26 21:22:28,942 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-08-26 21:22:28,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 41 events. 10/41 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 8 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 142. Up to 20 conditions per place. [2023-08-26 21:22:28,943 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-26 21:22:28,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 140 flow [2023-08-26 21:22:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 21:22:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 21:22:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2023-08-26 21:22:28,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3894736842105263 [2023-08-26 21:22:28,945 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2023-08-26 21:22:28,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2023-08-26 21:22:28,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:22:28,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2023-08-26 21:22:28,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 21:22:28,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states 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 21:22:28,948 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states 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 21:22:28,949 INFO L175 Difference]: Start difference. First operand has 51 places, 20 transitions, 99 flow. Second operand 6 states and 444 transitions. [2023-08-26 21:22:28,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 140 flow [2023-08-26 21:22:28,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 20 transitions, 115 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-26 21:22:28,949 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-26 21:22:28,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-26 21:22:28,950 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-08-26 21:22:28,950 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-26 21:22:28,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 0 states have call successors, (0), 0 states 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 21:22:28,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONASSERT (10 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (7 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2023-08-26 21:22:28,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2023-08-26 21:22:28,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-08-26 21:22:28,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-26 21:22:28,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONASSERT (2 of 13 remaining) [2023-08-26 21:22:28,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-26 21:22:28,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-26 21:22:28,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 21:22:28,954 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1] [2023-08-26 21:22:28,958 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:22:28,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:22:28,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:22:28 BasicIcfg [2023-08-26 21:22:28,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:22:28,961 INFO L158 Benchmark]: Toolchain (without parser) took 15302.89ms. Allocated memory was 369.1MB in the beginning and 673.2MB in the end (delta: 304.1MB). Free memory was 343.6MB in the beginning and 369.7MB in the end (delta: -26.1MB). Peak memory consumption was 277.6MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,961 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory was 346.2MB in the beginning and 346.1MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:22:28,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.33ms. Allocated memory is still 369.1MB. Free memory was 343.6MB in the beginning and 318.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.39ms. Allocated memory is still 369.1MB. Free memory was 318.1MB in the beginning and 314.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,962 INFO L158 Benchmark]: Boogie Preprocessor took 27.60ms. Allocated memory is still 369.1MB. Free memory was 314.9MB in the beginning and 312.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,962 INFO L158 Benchmark]: RCFGBuilder took 726.44ms. Allocated memory is still 369.1MB. Free memory was 312.5MB in the beginning and 311.9MB in the end (delta: 543.2kB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,962 INFO L158 Benchmark]: TraceAbstraction took 13961.38ms. Allocated memory was 369.1MB in the beginning and 673.2MB in the end (delta: 304.1MB). Free memory was 311.1MB in the beginning and 369.7MB in the end (delta: -58.6MB). Peak memory consumption was 246.1MB. Max. memory is 16.0GB. [2023-08-26 21:22:28,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory was 346.2MB in the beginning and 346.1MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 528.33ms. Allocated memory is still 369.1MB. Free memory was 343.6MB in the beginning and 318.1MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.39ms. Allocated memory is still 369.1MB. Free memory was 318.1MB in the beginning and 314.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.60ms. Allocated memory is still 369.1MB. Free memory was 314.9MB in the beginning and 312.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 726.44ms. Allocated memory is still 369.1MB. Free memory was 312.5MB in the beginning and 311.9MB in the end (delta: 543.2kB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 13961.38ms. Allocated memory was 369.1MB in the beginning and 673.2MB in the end (delta: 304.1MB). Free memory was 311.1MB in the beginning and 369.7MB in the end (delta: -58.6MB). Peak memory consumption was 246.1MB. 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: 3.5s, 102 PlacesBefore, 31 PlacesAfterwards, 98 TransitionsBefore, 24 TransitionsAfterwards, 1744 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 90 TotalNumberOfCompositions, 7151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2424, independent: 2150, independent conditional: 0, independent unconditional: 2150, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1050, independent: 980, independent conditional: 0, independent unconditional: 980, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2424, independent: 1170, independent conditional: 0, independent unconditional: 1170, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 1050, unknown conditional: 0, unknown unconditional: 1050] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: 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 - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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 5 procedures, 124 locations, 13 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: 13.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1192 IncrementalHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 12 mSDtfsCounter, 1192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=8, InterpolantAutomatonStates: 62, 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, 0.3s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 1587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 21:22:28,979 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...