/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:13:07,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:13:08,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:13:08,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:13:08,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:13:08,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:13:08,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:13:08,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:13:08,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:13:08,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:13:08,118 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:13:08,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:13:08,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:13:08,120 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:13:08,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:13:08,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:13:08,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:13:08,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:13:08,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:13:08,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:13:08,121 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:13:08,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:13:08,122 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:13:08,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:13:08,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:13:08,123 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:13:08,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:13:08,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:13:08,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:13:08,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:13:08,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:13:08,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:13:08,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:13:08,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:13:08,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:13:08,126 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:13:08,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:13:08,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:13:08,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:13:08,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:13:08,433 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:13:08,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-27 11:13:09,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:13:09,963 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:13:09,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-27 11:13:09,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbb50a94/bc603e7f415045b192991fcf5b09e283/FLAG5e9776599 [2023-08-27 11:13:09,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbb50a94/bc603e7f415045b192991fcf5b09e283 [2023-08-27 11:13:09,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:13:09,997 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:13:09,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:13:09,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:13:10,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:13:10,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:13:09" (1/1) ... [2023-08-27 11:13:10,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9c245d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10, skipping insertion in model container [2023-08-27 11:13:10,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:13:09" (1/1) ... [2023-08-27 11:13:10,040 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:13:10,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:13:10,320 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:13:10,347 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 11:13:10,349 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 11:13:10,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:13:10,420 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:13:10,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10 WrapperNode [2023-08-27 11:13:10,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:13:10,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:13:10,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:13:10,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:13:10,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,476 INFO L138 Inliner]: procedures = 162, calls = 25, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 100 [2023-08-27 11:13:10,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:13:10,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:13:10,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:13:10,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:13:10,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:13:10,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:13:10,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:13:10,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:13:10,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (1/1) ... [2023-08-27 11:13:10,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:13:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:13:10,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 11:13:10,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 11:13:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:13:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:13:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:13:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:13:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:13:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:13:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:13:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:13:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:13:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:13:10,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:13:10,600 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:13:10,761 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:13:10,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:13:10,986 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:13:10,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:13:10,993 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 11:13:10,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:13:10 BoogieIcfgContainer [2023-08-27 11:13:10,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:13:10,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:13:10,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:13:11,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:13:11,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:13:09" (1/3) ... [2023-08-27 11:13:11,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b76eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:13:11, skipping insertion in model container [2023-08-27 11:13:11,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:13:10" (2/3) ... [2023-08-27 11:13:11,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b76eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:13:11, skipping insertion in model container [2023-08-27 11:13:11,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:13:10" (3/3) ... [2023-08-27 11:13:11,004 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-08-27 11:13:11,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:13:11,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-27 11:13:11,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:13:11,077 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:13:11,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 117 transitions, 242 flow [2023-08-27 11:13:11,164 INFO L124 PetriNetUnfolderBase]: 8/116 cut-off events. [2023-08-27 11:13:11,165 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:13:11,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 8/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 162 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-27 11:13:11,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 117 transitions, 242 flow [2023-08-27 11:13:11,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 109 transitions, 221 flow [2023-08-27 11:13:11,178 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:13:11,186 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 109 transitions, 221 flow [2023-08-27 11:13:11,188 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 109 transitions, 221 flow [2023-08-27 11:13:11,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 109 transitions, 221 flow [2023-08-27 11:13:11,211 INFO L124 PetriNetUnfolderBase]: 8/109 cut-off events. [2023-08-27 11:13:11,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:13:11,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 162 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-27 11:13:11,217 INFO L119 LiptonReduction]: Number of co-enabled transitions 2176 [2023-08-27 11:13:14,058 INFO L134 LiptonReduction]: Checked pairs total: 4765 [2023-08-27 11:13:14,059 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-27 11:13:14,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:13:14,076 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;@158e0522, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:13:14,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-27 11:13:14,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:13:14,078 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-27 11:13:14,078 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:13:14,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:14,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 11:13:14,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:14,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash 462, now seen corresponding path program 1 times [2023-08-27 11:13:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:14,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990879333] [2023-08-27 11:13:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:14,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990879333] [2023-08-27 11:13:14,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990879333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:14,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:14,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 11:13:14,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404781239] [2023-08-27 11:13:14,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:14,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 11:13:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:14,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 11:13:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 11:13:14,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 244 [2023-08-27 11:13:14,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 103.5) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:14,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 244 [2023-08-27 11:13:14,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:14,279 INFO L124 PetriNetUnfolderBase]: 88/205 cut-off events. [2023-08-27 11:13:14,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:13:14,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 205 events. 88/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 771 event pairs, 88 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 398. Up to 198 conditions per place. [2023-08-27 11:13:14,281 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 21 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-08-27 11:13:14,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 89 flow [2023-08-27 11:13:14,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 11:13:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 11:13:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 230 transitions. [2023-08-27 11:13:14,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713114754098361 [2023-08-27 11:13:14,293 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 230 transitions. [2023-08-27 11:13:14,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 230 transitions. [2023-08-27 11:13:14,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:14,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 230 transitions. [2023-08-27 11:13:14,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,304 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,306 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 2 states and 230 transitions. [2023-08-27 11:13:14,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 89 flow [2023-08-27 11:13:14,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:13:14,309 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 46 flow [2023-08-27 11:13:14,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-08-27 11:13:14,314 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2023-08-27 11:13:14,314 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 46 flow [2023-08-27 11:13:14,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.5) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:14,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:13:14,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:13:14,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:14,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash 14128324, now seen corresponding path program 1 times [2023-08-27 11:13:14,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:14,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856965588] [2023-08-27 11:13:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856965588] [2023-08-27 11:13:14,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856965588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:14,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:14,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 11:13:14,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877817631] [2023-08-27 11:13:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:14,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:13:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:14,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:13:14,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:13:14,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 244 [2023-08-27 11:13:14,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:14,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 244 [2023-08-27 11:13:14,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:14,655 INFO L124 PetriNetUnfolderBase]: 77/183 cut-off events. [2023-08-27 11:13:14,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:13:14,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 183 events. 77/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 698 event pairs, 46 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 360. Up to 162 conditions per place. [2023-08-27 11:13:14,657 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 24 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-27 11:13:14,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 112 flow [2023-08-27 11:13:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:13:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:13:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-08-27 11:13:14,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2023-08-27 11:13:14,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-08-27 11:13:14,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-08-27 11:13:14,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:14,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-08-27 11:13:14,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,665 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 46 flow. Second operand 3 states and 306 transitions. [2023-08-27 11:13:14,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 112 flow [2023-08-27 11:13:14,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 11:13:14,666 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 69 flow [2023-08-27 11:13:14,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-27 11:13:14,667 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2023-08-27 11:13:14,667 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 69 flow [2023-08-27 11:13:14,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:14,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 11:13:14,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:13:14,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:14,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:14,668 INFO L85 PathProgramCache]: Analyzing trace with hash 692534851, now seen corresponding path program 1 times [2023-08-27 11:13:14,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:14,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125066207] [2023-08-27 11:13:14,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:14,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:14,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:14,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125066207] [2023-08-27 11:13:14,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125066207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:14,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:14,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:14,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486307572] [2023-08-27 11:13:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:14,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:13:14,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:13:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:13:14,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 244 [2023-08-27 11:13:14,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:14,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 244 [2023-08-27 11:13:14,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:14,916 INFO L124 PetriNetUnfolderBase]: 93/221 cut-off events. [2023-08-27 11:13:14,916 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-08-27 11:13:14,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 221 events. 93/221 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 957 event pairs, 29 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 480. Up to 135 conditions per place. [2023-08-27 11:13:14,918 INFO L140 encePairwiseOnDemand]: 237/244 looper letters, 38 selfloop transitions, 9 changer transitions 0/48 dead transitions. [2023-08-27 11:13:14,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 48 transitions, 220 flow [2023-08-27 11:13:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:13:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:13:14,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-08-27 11:13:14,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38524590163934425 [2023-08-27 11:13:14,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-08-27 11:13:14,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-08-27 11:13:14,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:14,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-08-27 11:13:14,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,929 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 69 flow. Second operand 6 states and 564 transitions. [2023-08-27 11:13:14,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 48 transitions, 220 flow [2023-08-27 11:13:14,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:13:14,931 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 124 flow [2023-08-27 11:13:14,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2023-08-27 11:13:14,931 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2023-08-27 11:13:14,932 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 124 flow [2023-08-27 11:13:14,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:14,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:14,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 11:13:14,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:14,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:14,933 INFO L85 PathProgramCache]: Analyzing trace with hash -10391192, now seen corresponding path program 1 times [2023-08-27 11:13:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:14,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499428409] [2023-08-27 11:13:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:14,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:14,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499428409] [2023-08-27 11:13:14,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499428409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:14,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:14,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060069187] [2023-08-27 11:13:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:14,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:13:14,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:13:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:13:14,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 244 [2023-08-27 11:13:14,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:14,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:14,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 244 [2023-08-27 11:13:14,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,019 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2023-08-27 11:13:15,020 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 11:13:15,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 38 events. 1/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 0 based on Foata normal form. 13/50 useless extension candidates. Maximal degree in co-relation 99. Up to 30 conditions per place. [2023-08-27 11:13:15,022 INFO L140 encePairwiseOnDemand]: 240/244 looper letters, 20 selfloop transitions, 4 changer transitions 1/26 dead transitions. [2023-08-27 11:13:15,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 147 flow [2023-08-27 11:13:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:13:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:13:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-08-27 11:13:15,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.412568306010929 [2023-08-27 11:13:15,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-08-27 11:13:15,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-08-27 11:13:15,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-08-27 11:13:15,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,027 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 124 flow. Second operand 3 states and 302 transitions. [2023-08-27 11:13:15,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 147 flow [2023-08-27 11:13:15,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 135 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-27 11:13:15,030 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 89 flow [2023-08-27 11:13:15,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-08-27 11:13:15,032 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2023-08-27 11:13:15,032 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 89 flow [2023-08-27 11:13:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:13:15,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash -10866824, now seen corresponding path program 1 times [2023-08-27 11:13:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445908904] [2023-08-27 11:13:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445908904] [2023-08-27 11:13:15,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445908904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349772526] [2023-08-27 11:13:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:13:15,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:13:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:13:15,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 244 [2023-08-27 11:13:15,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 244 [2023-08-27 11:13:15,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,175 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-08-27 11:13:15,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:13:15,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2023-08-27 11:13:15,176 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 24 selfloop transitions, 2 changer transitions 1/28 dead transitions. [2023-08-27 11:13:15,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 151 flow [2023-08-27 11:13:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:13:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:13:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 383 transitions. [2023-08-27 11:13:15,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39241803278688525 [2023-08-27 11:13:15,182 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 383 transitions. [2023-08-27 11:13:15,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 383 transitions. [2023-08-27 11:13:15,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 383 transitions. [2023-08-27 11:13:15,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,187 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,187 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 89 flow. Second operand 4 states and 383 transitions. [2023-08-27 11:13:15,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 151 flow [2023-08-27 11:13:15,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:13:15,188 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 83 flow [2023-08-27 11:13:15,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-27 11:13:15,191 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 6 predicate places. [2023-08-27 11:13:15,191 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 83 flow [2023-08-27 11:13:15,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:13:15,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash -193966297, now seen corresponding path program 1 times [2023-08-27 11:13:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614930497] [2023-08-27 11:13:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614930497] [2023-08-27 11:13:15,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614930497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 11:13:15,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475380515] [2023-08-27 11:13:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 11:13:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 11:13:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 11:13:15,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 244 [2023-08-27 11:13:15,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 244 [2023-08-27 11:13:15,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,393 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-08-27 11:13:15,394 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:13:15,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 29 events. 0/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2023-08-27 11:13:15,394 INFO L140 encePairwiseOnDemand]: 235/244 looper letters, 20 selfloop transitions, 8 changer transitions 1/29 dead transitions. [2023-08-27 11:13:15,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 155 flow [2023-08-27 11:13:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 11:13:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 11:13:15,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 678 transitions. [2023-08-27 11:13:15,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3473360655737705 [2023-08-27 11:13:15,397 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 678 transitions. [2023-08-27 11:13:15,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 678 transitions. [2023-08-27 11:13:15,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 678 transitions. [2023-08-27 11:13:15,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,402 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 244.0) internal successors, (2196), 9 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,403 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 83 flow. Second operand 8 states and 678 transitions. [2023-08-27 11:13:15,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 155 flow [2023-08-27 11:13:15,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 11:13:15,404 INFO L231 Difference]: Finished difference. Result has 43 places, 25 transitions, 115 flow [2023-08-27 11:13:15,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=25} [2023-08-27 11:13:15,405 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 14 predicate places. [2023-08-27 11:13:15,405 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 25 transitions, 115 flow [2023-08-27 11:13:15,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 11:13:15,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -193966152, now seen corresponding path program 1 times [2023-08-27 11:13:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711045479] [2023-08-27 11:13:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711045479] [2023-08-27 11:13:15,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711045479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:15,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287399311] [2023-08-27 11:13:15,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:13:15,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:13:15,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:13:15,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 244 [2023-08-27 11:13:15,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 25 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 244 [2023-08-27 11:13:15,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,483 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-08-27 11:13:15,484 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:13:15,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 27 events. 0/27 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2023-08-27 11:13:15,484 INFO L140 encePairwiseOnDemand]: 237/244 looper letters, 17 selfloop transitions, 7 changer transitions 0/24 dead transitions. [2023-08-27 11:13:15,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 24 transitions, 157 flow [2023-08-27 11:13:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:13:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:13:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2023-08-27 11:13:15,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3770491803278688 [2023-08-27 11:13:15,486 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 368 transitions. [2023-08-27 11:13:15,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 368 transitions. [2023-08-27 11:13:15,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 368 transitions. [2023-08-27 11:13:15,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,489 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,489 INFO L175 Difference]: Start difference. First operand has 43 places, 25 transitions, 115 flow. Second operand 4 states and 368 transitions. [2023-08-27 11:13:15,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 24 transitions, 157 flow [2023-08-27 11:13:15,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 11:13:15,491 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 109 flow [2023-08-27 11:13:15,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-27 11:13:15,492 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 11 predicate places. [2023-08-27 11:13:15,492 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 109 flow [2023-08-27 11:13:15,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 11:13:15,493 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1610053461, now seen corresponding path program 1 times [2023-08-27 11:13:15,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520749495] [2023-08-27 11:13:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520749495] [2023-08-27 11:13:15,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520749495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913198354] [2023-08-27 11:13:15,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:13:15,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:13:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:13:15,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 244 [2023-08-27 11:13:15,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 244 [2023-08-27 11:13:15,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,613 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-08-27 11:13:15,614 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:13:15,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 26 events. 0/26 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2023-08-27 11:13:15,614 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 18 selfloop transitions, 6 changer transitions 1/26 dead transitions. [2023-08-27 11:13:15,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 163 flow [2023-08-27 11:13:15,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:13:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:13:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2023-08-27 11:13:15,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3866120218579235 [2023-08-27 11:13:15,617 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2023-08-27 11:13:15,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2023-08-27 11:13:15,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2023-08-27 11:13:15,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,621 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 109 flow. Second operand 6 states and 566 transitions. [2023-08-27 11:13:15,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 26 transitions, 163 flow [2023-08-27 11:13:15,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 11:13:15,623 INFO L231 Difference]: Finished difference. Result has 42 places, 22 transitions, 106 flow [2023-08-27 11:13:15,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=42, PETRI_TRANSITIONS=22} [2023-08-27 11:13:15,623 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 13 predicate places. [2023-08-27 11:13:15,623 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 22 transitions, 106 flow [2023-08-27 11:13:15,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 11:13:15,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1610053416, now seen corresponding path program 1 times [2023-08-27 11:13:15,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601546480] [2023-08-27 11:13:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601546480] [2023-08-27 11:13:15,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601546480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:13:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549174174] [2023-08-27 11:13:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:13:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:13:15,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:13:15,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 244 [2023-08-27 11:13:15,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 22 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 244 [2023-08-27 11:13:15,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,734 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2023-08-27 11:13:15,734 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:13:15,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 24 events. 0/24 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-27 11:13:15,735 INFO L140 encePairwiseOnDemand]: 239/244 looper letters, 18 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2023-08-27 11:13:15,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 24 transitions, 154 flow [2023-08-27 11:13:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:13:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:13:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-08-27 11:13:15,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38524590163934425 [2023-08-27 11:13:15,737 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-08-27 11:13:15,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-08-27 11:13:15,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:15,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-08-27 11:13:15,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,743 INFO L175 Difference]: Start difference. First operand has 42 places, 22 transitions, 106 flow. Second operand 6 states and 564 transitions. [2023-08-27 11:13:15,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 24 transitions, 154 flow [2023-08-27 11:13:15,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 139 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-27 11:13:15,745 INFO L231 Difference]: Finished difference. Result has 40 places, 21 transitions, 95 flow [2023-08-27 11:13:15,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=21} [2023-08-27 11:13:15,746 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 11 predicate places. [2023-08-27 11:13:15,747 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 21 transitions, 95 flow [2023-08-27 11:13:15,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:15,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:15,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 11:13:15,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:15,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:15,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1712402461, now seen corresponding path program 1 times [2023-08-27 11:13:15,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:15,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780105599] [2023-08-27 11:13:15,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:15,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:15,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:15,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780105599] [2023-08-27 11:13:15,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780105599] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:15,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:15,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 11:13:15,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136388883] [2023-08-27 11:13:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 11:13:15,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 11:13:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 11:13:15,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 244 [2023-08-27 11:13:15,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 21 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:15,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:15,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 244 [2023-08-27 11:13:15,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:15,998 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-08-27 11:13:15,999 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 11:13:15,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 23 events. 0/23 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-27 11:13:15,999 INFO L140 encePairwiseOnDemand]: 237/244 looper letters, 13 selfloop transitions, 2 changer transitions 7/22 dead transitions. [2023-08-27 11:13:15,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 22 transitions, 140 flow [2023-08-27 11:13:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:13:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:13:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2023-08-27 11:13:16,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3476775956284153 [2023-08-27 11:13:16,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 509 transitions. [2023-08-27 11:13:16,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 509 transitions. [2023-08-27 11:13:16,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:16,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 509 transitions. [2023-08-27 11:13:16,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,007 INFO L175 Difference]: Start difference. First operand has 40 places, 21 transitions, 95 flow. Second operand 6 states and 509 transitions. [2023-08-27 11:13:16,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 22 transitions, 140 flow [2023-08-27 11:13:16,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 128 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 11:13:16,010 INFO L231 Difference]: Finished difference. Result has 39 places, 15 transitions, 57 flow [2023-08-27 11:13:16,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=39, PETRI_TRANSITIONS=15} [2023-08-27 11:13:16,011 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 10 predicate places. [2023-08-27 11:13:16,011 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 15 transitions, 57 flow [2023-08-27 11:13:16,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:16,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:16,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 11:13:16,012 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:16,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1073136835, now seen corresponding path program 1 times [2023-08-27 11:13:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:16,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035573032] [2023-08-27 11:13:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:16,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:16,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035573032] [2023-08-27 11:13:16,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035573032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:16,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:16,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:13:16,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702525795] [2023-08-27 11:13:16,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:16,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 11:13:16,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:16,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 11:13:16,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-27 11:13:16,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 244 [2023-08-27 11:13:16,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 15 transitions, 57 flow. Second operand has 7 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:16,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 244 [2023-08-27 11:13:16,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:16,246 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-08-27 11:13:16,246 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:13:16,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-27 11:13:16,247 INFO L140 encePairwiseOnDemand]: 237/244 looper letters, 7 selfloop transitions, 6 changer transitions 1/15 dead transitions. [2023-08-27 11:13:16,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 15 transitions, 84 flow [2023-08-27 11:13:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 11:13:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 11:13:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 589 transitions. [2023-08-27 11:13:16,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.344847775175644 [2023-08-27 11:13:16,249 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 589 transitions. [2023-08-27 11:13:16,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 589 transitions. [2023-08-27 11:13:16,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:16,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 589 transitions. [2023-08-27 11:13:16,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,255 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,255 INFO L175 Difference]: Start difference. First operand has 39 places, 15 transitions, 57 flow. Second operand 7 states and 589 transitions. [2023-08-27 11:13:16,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 15 transitions, 84 flow [2023-08-27 11:13:16,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 15 transitions, 70 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-27 11:13:16,258 INFO L231 Difference]: Finished difference. Result has 29 places, 14 transitions, 51 flow [2023-08-27 11:13:16,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=51, PETRI_PLACES=29, PETRI_TRANSITIONS=14} [2023-08-27 11:13:16,260 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2023-08-27 11:13:16,260 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 14 transitions, 51 flow [2023-08-27 11:13:16,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:13:16,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:16,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 11:13:16,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 11:13:16,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:13:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -492374623, now seen corresponding path program 1 times [2023-08-27 11:13:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:13:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613819117] [2023-08-27 11:13:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:13:16,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:13:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:13:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:13:16,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:13:16,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613819117] [2023-08-27 11:13:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613819117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:13:16,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:13:16,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:13:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490773797] [2023-08-27 11:13:16,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:13:16,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 11:13:16,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:13:16,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 11:13:16,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-27 11:13:16,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 244 [2023-08-27 11:13:16,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 14 transitions, 51 flow. Second operand has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:13:16,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 244 [2023-08-27 11:13:16,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:13:16,441 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-27 11:13:16,441 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:13:16,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 14 events. 0/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-27 11:13:16,441 INFO L140 encePairwiseOnDemand]: 236/244 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-27 11:13:16,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 14 transitions, 80 flow [2023-08-27 11:13:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 11:13:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 11:13:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 726 transitions. [2023-08-27 11:13:16,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33060109289617484 [2023-08-27 11:13:16,444 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 726 transitions. [2023-08-27 11:13:16,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 726 transitions. [2023-08-27 11:13:16,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:13:16,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 726 transitions. [2023-08-27 11:13:16,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 80.66666666666667) internal successors, (726), 9 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,449 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 244.0) internal successors, (2440), 10 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,449 INFO L175 Difference]: Start difference. First operand has 29 places, 14 transitions, 51 flow. Second operand 9 states and 726 transitions. [2023-08-27 11:13:16,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 14 transitions, 80 flow [2023-08-27 11:13:16,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 14 transitions, 73 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 11:13:16,450 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-08-27 11:13:16,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-08-27 11:13:16,451 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-27 11:13:16,451 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-08-27 11:13:16,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:13:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (10 of 11 remaining) [2023-08-27 11:13:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-27 11:13:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-27 11:13:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-27 11:13:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-27 11:13:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2023-08-27 11:13:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-27 11:13:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (3 of 11 remaining) [2023-08-27 11:13:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONASSERT (2 of 11 remaining) [2023-08-27 11:13:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (1 of 11 remaining) [2023-08-27 11:13:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONASSERT (0 of 11 remaining) [2023-08-27 11:13:16,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 11:13:16,459 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:13:16,464 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:13:16,464 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:13:16,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:13:16 BasicIcfg [2023-08-27 11:13:16,467 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:13:16,469 INFO L158 Benchmark]: Toolchain (without parser) took 6470.64ms. Allocated memory was 385.9MB in the beginning and 467.7MB in the end (delta: 81.8MB). Free memory was 361.0MB in the beginning and 417.9MB in the end (delta: -56.9MB). Peak memory consumption was 25.5MB. Max. memory is 16.0GB. [2023-08-27 11:13:16,471 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 385.9MB. Free memory is still 362.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:13:16,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.88ms. Allocated memory is still 385.9MB. Free memory was 361.0MB in the beginning and 342.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 11:13:16,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.03ms. Allocated memory is still 385.9MB. Free memory was 342.0MB in the beginning and 339.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:13:16,471 INFO L158 Benchmark]: Boogie Preprocessor took 47.34ms. Allocated memory is still 385.9MB. Free memory was 339.9MB in the beginning and 338.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:13:16,472 INFO L158 Benchmark]: RCFGBuilder took 469.36ms. Allocated memory is still 385.9MB. Free memory was 338.3MB in the beginning and 323.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 11:13:16,472 INFO L158 Benchmark]: TraceAbstraction took 5470.68ms. Allocated memory was 385.9MB in the beginning and 467.7MB in the end (delta: 81.8MB). Free memory was 322.9MB in the beginning and 417.9MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:13:16,473 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 385.9MB. Free memory is still 362.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 422.88ms. Allocated memory is still 385.9MB. Free memory was 361.0MB in the beginning and 342.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.03ms. Allocated memory is still 385.9MB. Free memory was 342.0MB in the beginning and 339.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.34ms. Allocated memory is still 385.9MB. Free memory was 339.9MB in the beginning and 338.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 469.36ms. Allocated memory is still 385.9MB. Free memory was 338.3MB in the beginning and 323.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5470.68ms. Allocated memory was 385.9MB in the beginning and 467.7MB in the end (delta: 81.8MB). Free memory was 322.9MB in the beginning and 417.9MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 105 PlacesBefore, 29 PlacesAfterwards, 109 TransitionsBefore, 27 TransitionsAfterwards, 2176 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 127 TotalNumberOfCompositions, 4765 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2380, independent: 2172, independent conditional: 0, independent unconditional: 2172, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1324, independent: 1272, independent conditional: 0, independent unconditional: 1272, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2380, independent: 900, independent conditional: 0, independent unconditional: 900, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 1324, unknown conditional: 0, unknown unconditional: 1324] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, 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: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: 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 3 procedures, 142 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 714 IncrementalHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2 mSDtfsCounter, 714 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=3, InterpolantAutomatonStates: 64, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 11:13:16,500 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...