/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:28:12,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:28:12,860 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 06:28:12,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:28:12,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:28:12,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:28:12,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:28:12,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:28:12,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:28:12,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:28:12,897 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:28:12,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:28:12,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:28:12,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:28:12,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:28:12,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:28:12,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:28:12,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:28:12,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:28:12,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:28:12,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:28:12,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:28:12,901 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:28:12,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:28:12,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:28:12,902 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:28:12,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:28:12,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:28:12,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:28:12,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:28:12,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:28:12,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:28:12,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:28:12,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:28:12,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:28:12,904 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:28:13,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:28:13,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:28:13,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:28:13,235 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:28:13,236 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:28:13,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-27 06:28:14,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:28:14,667 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:28:14,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-27 06:28:14,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65bcfb88/896e0dcf015d4c2399c1cdf304e07903/FLAG793df76c1 [2023-08-27 06:28:14,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65bcfb88/896e0dcf015d4c2399c1cdf304e07903 [2023-08-27 06:28:14,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:28:14,700 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:28:14,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:28:14,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:28:14,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:28:14,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:28:14" (1/1) ... [2023-08-27 06:28:14,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d49ca34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:14, skipping insertion in model container [2023-08-27 06:28:14,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:28:14" (1/1) ... [2023-08-27 06:28:14,742 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:28:14,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:28:14,963 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:28:15,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:28:15,030 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:28:15,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15 WrapperNode [2023-08-27 06:28:15,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:28:15,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:28:15,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:28:15,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:28:15,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,092 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 500 [2023-08-27 06:28:15,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:28:15,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:28:15,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:28:15,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:28:15,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:28:15,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:28:15,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:28:15,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:28:15,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (1/1) ... [2023-08-27 06:28:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:28:15,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:28:15,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 06:28:15,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 06:28:15,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:28:15,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:28:15,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:28:15,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:28:15,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:28:15,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:28:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:28:15,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:28:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:28:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 06:28:15,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:28:15,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:28:15,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:28:15,227 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 06:28:15,347 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:28:15,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:28:16,064 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:28:16,078 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:28:16,079 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-27 06:28:16,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:28:16 BoogieIcfgContainer [2023-08-27 06:28:16,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:28:16,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:28:16,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:28:16,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:28:16,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:28:14" (1/3) ... [2023-08-27 06:28:16,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16261c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:28:16, skipping insertion in model container [2023-08-27 06:28:16,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:28:15" (2/3) ... [2023-08-27 06:28:16,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16261c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:28:16, skipping insertion in model container [2023-08-27 06:28:16,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:28:16" (3/3) ... [2023-08-27 06:28:16,090 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-08-27 06:28:16,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:28:16,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2023-08-27 06:28:16,103 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:28:16,216 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 06:28:16,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 578 places, 632 transitions, 1280 flow [2023-08-27 06:28:16,467 INFO L124 PetriNetUnfolderBase]: 61/630 cut-off events. [2023-08-27 06:28:16,468 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:28:16,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 630 events. 61/630 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2183 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 455. Up to 2 conditions per place. [2023-08-27 06:28:16,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 578 places, 632 transitions, 1280 flow [2023-08-27 06:28:16,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 567 places, 621 transitions, 1254 flow [2023-08-27 06:28:16,498 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:28:16,506 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 567 places, 621 transitions, 1254 flow [2023-08-27 06:28:16,508 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 567 places, 621 transitions, 1254 flow [2023-08-27 06:28:16,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 567 places, 621 transitions, 1254 flow [2023-08-27 06:28:16,649 INFO L124 PetriNetUnfolderBase]: 61/621 cut-off events. [2023-08-27 06:28:16,650 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:28:16,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 621 events. 61/621 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2141 event pairs, 0 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 455. Up to 2 conditions per place. [2023-08-27 06:28:16,740 INFO L119 LiptonReduction]: Number of co-enabled transitions 105228 [2023-08-27 06:28:55,326 INFO L134 LiptonReduction]: Checked pairs total: 102639 [2023-08-27 06:28:55,326 INFO L136 LiptonReduction]: Total number of compositions: 844 [2023-08-27 06:28:55,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:28:55,342 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;@c3b22e7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:28:55,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-08-27 06:28:55,344 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:28:55,344 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 06:28:55,344 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:28:55,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:55,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:28:55,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:55,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash 90233, now seen corresponding path program 1 times [2023-08-27 06:28:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:55,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693830356] [2023-08-27 06:28:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693830356] [2023-08-27 06:28:55,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693830356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:28:55,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:28:55,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:28:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834804157] [2023-08-27 06:28:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:28:55,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:28:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:28:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:28:55,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1476 [2023-08-27 06:28:55,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:55,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:55,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1476 [2023-08-27 06:28:55,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:56,239 INFO L124 PetriNetUnfolderBase]: 1275/2064 cut-off events. [2023-08-27 06:28:56,239 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-08-27 06:28:56,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4199 conditions, 2064 events. 1275/2064 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10342 event pairs, 1047 based on Foata normal form. 0/840 useless extension candidates. Maximal degree in co-relation 4030. Up to 2062 conditions per place. [2023-08-27 06:28:56,252 INFO L140 encePairwiseOnDemand]: 1454/1476 looper letters, 59 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2023-08-27 06:28:56,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 268 flow [2023-08-27 06:28:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:28:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:28:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1833 transitions. [2023-08-27 06:28:56,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41395663956639567 [2023-08-27 06:28:56,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1833 transitions. [2023-08-27 06:28:56,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1833 transitions. [2023-08-27 06:28:56,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:56,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1833 transitions. [2023-08-27 06:28:56,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.0) internal successors, (1833), 3 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:56,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:56,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:56,303 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 158 flow. Second operand 3 states and 1833 transitions. [2023-08-27 06:28:56,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 268 flow [2023-08-27 06:28:56,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 06:28:56,313 INFO L231 Difference]: Finished difference. Result has 59 places, 64 transitions, 168 flow [2023-08-27 06:28:56,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=59, PETRI_TRANSITIONS=64} [2023-08-27 06:28:56,318 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2023-08-27 06:28:56,318 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 64 transitions, 168 flow [2023-08-27 06:28:56,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:56,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:56,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:28:56,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:28:56,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:56,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:56,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2803540, now seen corresponding path program 1 times [2023-08-27 06:28:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:56,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547235375] [2023-08-27 06:28:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:56,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547235375] [2023-08-27 06:28:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547235375] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:28:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013856863] [2023-08-27 06:28:56,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:56,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:28:56,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:28:56,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 06:28:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:56,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:28:56,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:28:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:56,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:28:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013856863] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:28:56,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:28:56,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 06:28:56,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870695001] [2023-08-27 06:28:56,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:28:56,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:28:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:28:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:28:56,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1476 [2023-08-27 06:28:56,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 64 transitions, 168 flow. Second operand has 7 states, 7 states have (on average 585.1428571428571) internal successors, (4096), 7 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:56,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:56,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1476 [2023-08-27 06:28:56,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:57,123 INFO L124 PetriNetUnfolderBase]: 1287/2082 cut-off events. [2023-08-27 06:28:57,124 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:28:57,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4233 conditions, 2082 events. 1287/2082 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 10210 event pairs, 1047 based on Foata normal form. 0/851 useless extension candidates. Maximal degree in co-relation 4128. Up to 2063 conditions per place. [2023-08-27 06:28:57,133 INFO L140 encePairwiseOnDemand]: 1467/1476 looper letters, 57 selfloop transitions, 25 changer transitions 0/82 dead transitions. [2023-08-27 06:28:57,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 82 transitions, 410 flow [2023-08-27 06:28:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:28:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:28:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4176 transitions. [2023-08-27 06:28:57,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40418118466898956 [2023-08-27 06:28:57,143 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4176 transitions. [2023-08-27 06:28:57,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4176 transitions. [2023-08-27 06:28:57,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:57,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4176 transitions. [2023-08-27 06:28:57,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 596.5714285714286) internal successors, (4176), 7 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1476.0) internal successors, (11808), 8 states have internal predecessors, (11808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,176 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1476.0) internal successors, (11808), 8 states have internal predecessors, (11808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,178 INFO L175 Difference]: Start difference. First operand has 59 places, 64 transitions, 168 flow. Second operand 7 states and 4176 transitions. [2023-08-27 06:28:57,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 82 transitions, 410 flow [2023-08-27 06:28:57,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 82 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:28:57,182 INFO L231 Difference]: Finished difference. Result has 66 places, 82 transitions, 322 flow [2023-08-27 06:28:57,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=66, PETRI_TRANSITIONS=82} [2023-08-27 06:28:57,187 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -6 predicate places. [2023-08-27 06:28:57,187 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 82 transitions, 322 flow [2023-08-27 06:28:57,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 585.1428571428571) internal successors, (4096), 7 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:57,189 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2023-08-27 06:28:57,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-27 06:28:57,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:57,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:57,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 86916025, now seen corresponding path program 1 times [2023-08-27 06:28:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59063322] [2023-08-27 06:28:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:57,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:28:57,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:57,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59063322] [2023-08-27 06:28:57,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59063322] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:28:57,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:28:57,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:28:57,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199612371] [2023-08-27 06:28:57,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:28:57,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:28:57,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:57,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:28:57,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:28:57,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1476 [2023-08-27 06:28:57,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 82 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:57,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1476 [2023-08-27 06:28:57,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:57,842 INFO L124 PetriNetUnfolderBase]: 1281/2074 cut-off events. [2023-08-27 06:28:57,842 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-27 06:28:57,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4242 conditions, 2074 events. 1281/2074 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10329 event pairs, 1047 based on Foata normal form. 0/854 useless extension candidates. Maximal degree in co-relation 4177. Up to 2057 conditions per place. [2023-08-27 06:28:57,853 INFO L140 encePairwiseOnDemand]: 1472/1476 looper letters, 68 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-08-27 06:28:57,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 74 transitions, 416 flow [2023-08-27 06:28:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:28:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:28:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1812 transitions. [2023-08-27 06:28:57,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4092140921409214 [2023-08-27 06:28:57,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1812 transitions. [2023-08-27 06:28:57,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1812 transitions. [2023-08-27 06:28:57,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:57,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1812 transitions. [2023-08-27 06:28:57,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.0) internal successors, (1812), 3 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,871 INFO L175 Difference]: Start difference. First operand has 66 places, 82 transitions, 322 flow. Second operand 3 states and 1812 transitions. [2023-08-27 06:28:57,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 74 transitions, 416 flow [2023-08-27 06:28:57,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 74 transitions, 390 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-27 06:28:57,874 INFO L231 Difference]: Finished difference. Result has 64 places, 74 transitions, 254 flow [2023-08-27 06:28:57,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=64, PETRI_TRANSITIONS=74} [2023-08-27 06:28:57,875 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:28:57,875 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 74 transitions, 254 flow [2023-08-27 06:28:57,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:57,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:28:57,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:28:57,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:57,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:57,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1597312239, now seen corresponding path program 1 times [2023-08-27 06:28:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93065115] [2023-08-27 06:28:57,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:57,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:57,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93065115] [2023-08-27 06:28:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93065115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:28:57,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:28:57,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:28:57,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79582229] [2023-08-27 06:28:57,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:28:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:28:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:28:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:28:57,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 578 out of 1476 [2023-08-27 06:28:57,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 74 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 3 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:57,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:57,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 578 of 1476 [2023-08-27 06:28:57,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:58,349 INFO L124 PetriNetUnfolderBase]: 1279/2072 cut-off events. [2023-08-27 06:28:58,349 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-27 06:28:58,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4227 conditions, 2072 events. 1279/2072 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 10366 event pairs, 1047 based on Foata normal form. 2/857 useless extension candidates. Maximal degree in co-relation 4166. Up to 2068 conditions per place. [2023-08-27 06:28:58,359 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 65 selfloop transitions, 7 changer transitions 0/72 dead transitions. [2023-08-27 06:28:58,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 72 transitions, 387 flow [2023-08-27 06:28:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:28:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:28:58,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1796 transitions. [2023-08-27 06:28:58,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4056007226738934 [2023-08-27 06:28:58,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1796 transitions. [2023-08-27 06:28:58,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1796 transitions. [2023-08-27 06:28:58,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:58,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1796 transitions. [2023-08-27 06:28:58,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 598.6666666666666) internal successors, (1796), 3 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:58,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:58,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:58,375 INFO L175 Difference]: Start difference. First operand has 64 places, 74 transitions, 254 flow. Second operand 3 states and 1796 transitions. [2023-08-27 06:28:58,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 72 transitions, 387 flow [2023-08-27 06:28:58,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:28:58,378 INFO L231 Difference]: Finished difference. Result has 64 places, 72 transitions, 247 flow [2023-08-27 06:28:58,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2023-08-27 06:28:58,379 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:28:58,379 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 247 flow [2023-08-27 06:28:58,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 3 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:58,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:58,380 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 06:28:58,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:28:58,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:58,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1922123514, now seen corresponding path program 2 times [2023-08-27 06:28:58,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:58,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679926233] [2023-08-27 06:28:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:58,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:58,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679926233] [2023-08-27 06:28:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679926233] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:28:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920230607] [2023-08-27 06:28:58,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:28:58,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:58,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:28:58,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:28:58,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 06:28:58,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:28:58,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:28:58,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:28:58,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:28:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:28:58,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:28:58,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920230607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:28:58,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:28:58,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 06:28:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129643471] [2023-08-27 06:28:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:28:58,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:28:58,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:28:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:28:58,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1476 [2023-08-27 06:28:58,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:58,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:58,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1476 [2023-08-27 06:28:58,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:58,989 INFO L124 PetriNetUnfolderBase]: 1279/2070 cut-off events. [2023-08-27 06:28:58,989 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 06:28:58,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4217 conditions, 2070 events. 1279/2070 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 10352 event pairs, 1047 based on Foata normal form. 2/854 useless extension candidates. Maximal degree in co-relation 4168. Up to 2070 conditions per place. [2023-08-27 06:28:58,999 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 69 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-08-27 06:28:58,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 70 transitions, 367 flow [2023-08-27 06:28:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:28:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:28:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1822 transitions. [2023-08-27 06:28:59,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4114724480578139 [2023-08-27 06:28:59,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1822 transitions. [2023-08-27 06:28:59,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1822 transitions. [2023-08-27 06:28:59,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:59,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1822 transitions. [2023-08-27 06:28:59,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 607.3333333333334) internal successors, (1822), 3 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,022 INFO L175 Difference]: Start difference. First operand has 64 places, 72 transitions, 247 flow. Second operand 3 states and 1822 transitions. [2023-08-27 06:28:59,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 70 transitions, 367 flow [2023-08-27 06:28:59,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 70 transitions, 322 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-27 06:28:59,025 INFO L231 Difference]: Finished difference. Result has 58 places, 70 transitions, 184 flow [2023-08-27 06:28:59,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=58, PETRI_TRANSITIONS=70} [2023-08-27 06:28:59,028 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2023-08-27 06:28:59,028 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 70 transitions, 184 flow [2023-08-27 06:28:59,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:59,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:28:59,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-27 06:28:59,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:59,235 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:28:59,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash -442591527, now seen corresponding path program 1 times [2023-08-27 06:28:59,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:59,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400949556] [2023-08-27 06:28:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:59,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:28:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400949556] [2023-08-27 06:28:59,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400949556] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:28:59,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728055287] [2023-08-27 06:28:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:59,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:59,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:28:59,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:28:59,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 06:28:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:59,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:28:59,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:28:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:28:59,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:28:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:28:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728055287] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:28:59,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:28:59,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-27 06:28:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191480401] [2023-08-27 06:28:59,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:28:59,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 06:28:59,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:28:59,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 06:28:59,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:28:59,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 578 out of 1476 [2023-08-27 06:28:59,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 70 transitions, 184 flow. Second operand has 8 states, 8 states have (on average 579.625) internal successors, (4637), 8 states have internal predecessors, (4637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:28:59,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 578 of 1476 [2023-08-27 06:28:59,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:28:59,860 INFO L124 PetriNetUnfolderBase]: 1273/2064 cut-off events. [2023-08-27 06:28:59,860 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:28:59,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4172 conditions, 2064 events. 1273/2064 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 10304 event pairs, 1047 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 4164. Up to 2057 conditions per place. [2023-08-27 06:28:59,872 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 54 selfloop transitions, 10 changer transitions 0/64 dead transitions. [2023-08-27 06:28:59,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 288 flow [2023-08-27 06:28:59,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:28:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:28:59,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3538 transitions. [2023-08-27 06:28:59,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39950316169828365 [2023-08-27 06:28:59,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3538 transitions. [2023-08-27 06:28:59,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3538 transitions. [2023-08-27 06:28:59,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:59,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3538 transitions. [2023-08-27 06:28:59,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 589.6666666666666) internal successors, (3538), 6 states have internal predecessors, (3538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,903 INFO L175 Difference]: Start difference. First operand has 58 places, 70 transitions, 184 flow. Second operand 6 states and 3538 transitions. [2023-08-27 06:28:59,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 288 flow [2023-08-27 06:28:59,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:28:59,905 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 179 flow [2023-08-27 06:28:59,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2023-08-27 06:28:59,906 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2023-08-27 06:28:59,906 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 179 flow [2023-08-27 06:28:59,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 579.625) internal successors, (4637), 8 states have internal predecessors, (4637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:28:59,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:59,908 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1] [2023-08-27 06:28:59,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:00,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:00,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:00,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1689923790, now seen corresponding path program 2 times [2023-08-27 06:29:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350824190] [2023-08-27 06:29:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:29:00,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:00,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350824190] [2023-08-27 06:29:00,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350824190] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:00,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600429465] [2023-08-27 06:29:00,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:29:00,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:00,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:00,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:00,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 06:29:00,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:29:00,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:29:00,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:29:00,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-27 06:29:00,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:29:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600429465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:29:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2023-08-27 06:29:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562742852] [2023-08-27 06:29:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:00,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:00,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:29:00,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:00,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:00,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:00,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:00,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:00,717 INFO L124 PetriNetUnfolderBase]: 1147/1858 cut-off events. [2023-08-27 06:29:00,717 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:00,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3769 conditions, 1858 events. 1147/1858 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 8991 event pairs, 933 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 3760. Up to 1858 conditions per place. [2023-08-27 06:29:00,726 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 61 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-27 06:29:00,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 299 flow [2023-08-27 06:29:00,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1844 transitions. [2023-08-27 06:29:00,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164408310749774 [2023-08-27 06:29:00,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1844 transitions. [2023-08-27 06:29:00,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1844 transitions. [2023-08-27 06:29:00,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:00,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1844 transitions. [2023-08-27 06:29:00,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:00,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:00,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:00,742 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 179 flow. Second operand 3 states and 1844 transitions. [2023-08-27 06:29:00,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 299 flow [2023-08-27 06:29:00,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 279 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 06:29:00,744 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 157 flow [2023-08-27 06:29:00,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2023-08-27 06:29:00,745 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2023-08-27 06:29:00,745 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 157 flow [2023-08-27 06:29:00,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:00,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:00,746 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1] [2023-08-27 06:29:00,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:00,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:00,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:00,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1689923789, now seen corresponding path program 1 times [2023-08-27 06:29:00,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:00,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527605749] [2023-08-27 06:29:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:00,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:29:01,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:01,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527605749] [2023-08-27 06:29:01,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527605749] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:01,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242606634] [2023-08-27 06:29:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:01,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:01,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:01,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:01,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 06:29:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:01,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-27 06:29:01,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:29:01,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:29:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:29:01,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242606634] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:29:01,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:29:01,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-27 06:29:01,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147236493] [2023-08-27 06:29:01,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:29:01,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-27 06:29:01,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:01,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-27 06:29:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-27 06:29:01,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 578 out of 1476 [2023-08-27 06:29:01,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 157 flow. Second operand has 17 states, 17 states have (on average 579.2941176470588) internal successors, (9848), 17 states have internal predecessors, (9848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:01,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:01,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 578 of 1476 [2023-08-27 06:29:01,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:01,756 INFO L124 PetriNetUnfolderBase]: 1147/1860 cut-off events. [2023-08-27 06:29:01,756 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:01,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3766 conditions, 1860 events. 1147/1860 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9028 event pairs, 933 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 3757. Up to 1851 conditions per place. [2023-08-27 06:29:01,764 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 52 selfloop transitions, 12 changer transitions 0/64 dead transitions. [2023-08-27 06:29:01,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 293 flow [2023-08-27 06:29:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:29:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:29:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4112 transitions. [2023-08-27 06:29:01,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3979868370112273 [2023-08-27 06:29:01,775 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4112 transitions. [2023-08-27 06:29:01,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4112 transitions. [2023-08-27 06:29:01,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:01,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4112 transitions. [2023-08-27 06:29:01,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 587.4285714285714) internal successors, (4112), 7 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:01,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1476.0) internal successors, (11808), 8 states have internal predecessors, (11808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:01,795 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1476.0) internal successors, (11808), 8 states have internal predecessors, (11808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:01,795 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 157 flow. Second operand 7 states and 4112 transitions. [2023-08-27 06:29:01,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 293 flow [2023-08-27 06:29:01,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:01,797 INFO L231 Difference]: Finished difference. Result has 63 places, 64 transitions, 198 flow [2023-08-27 06:29:01,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=198, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2023-08-27 06:29:01,798 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -9 predicate places. [2023-08-27 06:29:01,798 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 198 flow [2023-08-27 06:29:01,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 579.2941176470588) internal successors, (9848), 17 states have internal predecessors, (9848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:01,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:01,800 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2023-08-27 06:29:01,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:02,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:02,012 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:02,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1922787556, now seen corresponding path program 1 times [2023-08-27 06:29:02,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:02,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812691848] [2023-08-27 06:29:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:02,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:02,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:02,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812691848] [2023-08-27 06:29:02,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812691848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:02,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:02,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:02,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23060647] [2023-08-27 06:29:02,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:02,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:02,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:02,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:02,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:02,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:02,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:02,468 INFO L124 PetriNetUnfolderBase]: 1027/1664 cut-off events. [2023-08-27 06:29:02,469 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:02,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3391 conditions, 1664 events. 1027/1664 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7903 event pairs, 825 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 3380. Up to 1664 conditions per place. [2023-08-27 06:29:02,474 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 61 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-27 06:29:02,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 318 flow [2023-08-27 06:29:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1842 transitions. [2023-08-27 06:29:02,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4159891598915989 [2023-08-27 06:29:02,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1842 transitions. [2023-08-27 06:29:02,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1842 transitions. [2023-08-27 06:29:02,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:02,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1842 transitions. [2023-08-27 06:29:02,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,487 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 198 flow. Second operand 3 states and 1842 transitions. [2023-08-27 06:29:02,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 318 flow [2023-08-27 06:29:02,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 298 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-27 06:29:02,489 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 176 flow [2023-08-27 06:29:02,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2023-08-27 06:29:02,489 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2023-08-27 06:29:02,490 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 176 flow [2023-08-27 06:29:02,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:02,490 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2023-08-27 06:29:02,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:29:02,490 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:02,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1922787560, now seen corresponding path program 2 times [2023-08-27 06:29:02,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:02,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879198670] [2023-08-27 06:29:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:02,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879198670] [2023-08-27 06:29:02,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879198670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:02,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:02,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:02,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361453328] [2023-08-27 06:29:02,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:02,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:02,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:02,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:02,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:02,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:02,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:02,809 INFO L124 PetriNetUnfolderBase]: 913/1478 cut-off events. [2023-08-27 06:29:02,809 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:02,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 1478 events. 913/1478 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6800 event pairs, 723 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 2998. Up to 1478 conditions per place. [2023-08-27 06:29:02,815 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-08-27 06:29:02,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 292 flow [2023-08-27 06:29:02,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1840 transitions. [2023-08-27 06:29:02,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41553748870822044 [2023-08-27 06:29:02,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1840 transitions. [2023-08-27 06:29:02,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1840 transitions. [2023-08-27 06:29:02,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:02,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1840 transitions. [2023-08-27 06:29:02,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 613.3333333333334) internal successors, (1840), 3 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,828 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 176 flow. Second operand 3 states and 1840 transitions. [2023-08-27 06:29:02,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 292 flow [2023-08-27 06:29:02,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 60 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:02,830 INFO L231 Difference]: Finished difference. Result has 58 places, 60 transitions, 173 flow [2023-08-27 06:29:02,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=58, PETRI_TRANSITIONS=60} [2023-08-27 06:29:02,830 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2023-08-27 06:29:02,830 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 60 transitions, 173 flow [2023-08-27 06:29:02,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:02,831 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2023-08-27 06:29:02,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:29:02,831 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:02,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1922787589, now seen corresponding path program 1 times [2023-08-27 06:29:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:02,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458452771] [2023-08-27 06:29:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:02,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458452771] [2023-08-27 06:29:02,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458452771] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:02,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:02,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:02,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766757008] [2023-08-27 06:29:02,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:02,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:02,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:02,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:02,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:02,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:02,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 60 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:02,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:02,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:02,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:03,156 INFO L124 PetriNetUnfolderBase]: 805/1302 cut-off events. [2023-08-27 06:29:03,156 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:03,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 1302 events. 805/1302 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5756 event pairs, 627 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 2645. Up to 1302 conditions per place. [2023-08-27 06:29:03,160 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2023-08-27 06:29:03,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 285 flow [2023-08-27 06:29:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1838 transitions. [2023-08-27 06:29:03,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150858175248419 [2023-08-27 06:29:03,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1838 transitions. [2023-08-27 06:29:03,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1838 transitions. [2023-08-27 06:29:03,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:03,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1838 transitions. [2023-08-27 06:29:03,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,172 INFO L175 Difference]: Start difference. First operand has 58 places, 60 transitions, 173 flow. Second operand 3 states and 1838 transitions. [2023-08-27 06:29:03,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 285 flow [2023-08-27 06:29:03,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:03,174 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 170 flow [2023-08-27 06:29:03,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=57, PETRI_TRANSITIONS=58} [2023-08-27 06:29:03,174 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2023-08-27 06:29:03,174 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 170 flow [2023-08-27 06:29:03,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:03,175 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:03,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:29:03,175 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:03,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash 523129073, now seen corresponding path program 1 times [2023-08-27 06:29:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963262700] [2023-08-27 06:29:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:03,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963262700] [2023-08-27 06:29:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963262700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:03,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:29:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185383510] [2023-08-27 06:29:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:03,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:03,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:03,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 58 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:03,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:03,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:03,590 INFO L124 PetriNetUnfolderBase]: 1211/1950 cut-off events. [2023-08-27 06:29:03,590 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 06:29:03,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3965 conditions, 1950 events. 1211/1950 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8899 event pairs, 627 based on Foata normal form. 0/981 useless extension candidates. Maximal degree in co-relation 3951. Up to 1303 conditions per place. [2023-08-27 06:29:03,597 INFO L140 encePairwiseOnDemand]: 1464/1476 looper letters, 86 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2023-08-27 06:29:03,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 88 transitions, 409 flow [2023-08-27 06:29:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1813 transitions. [2023-08-27 06:29:03,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4094399277326107 [2023-08-27 06:29:03,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1813 transitions. [2023-08-27 06:29:03,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1813 transitions. [2023-08-27 06:29:03,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:03,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1813 transitions. [2023-08-27 06:29:03,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,609 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 170 flow. Second operand 3 states and 1813 transitions. [2023-08-27 06:29:03,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 88 transitions, 409 flow [2023-08-27 06:29:03,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 88 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:03,611 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 199 flow [2023-08-27 06:29:03,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2023-08-27 06:29:03,612 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2023-08-27 06:29:03,612 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 199 flow [2023-08-27 06:29:03,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:03,613 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:03,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:29:03,613 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:03,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash 209387605, now seen corresponding path program 1 times [2023-08-27 06:29:03,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:03,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262002411] [2023-08-27 06:29:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:03,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:03,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262002411] [2023-08-27 06:29:03,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262002411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:03,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:03,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:29:03,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661583593] [2023-08-27 06:29:03,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:03,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:03,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:03,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:03,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:03,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:03,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 578.3333333333334) internal successors, (1735), 3 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:03,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:03,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:03,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:04,161 INFO L124 PetriNetUnfolderBase]: 1425/2300 cut-off events. [2023-08-27 06:29:04,161 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-08-27 06:29:04,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5030 conditions, 2300 events. 1425/2300 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 11157 event pairs, 945 based on Foata normal form. 0/1301 useless extension candidates. Maximal degree in co-relation 5015. Up to 1951 conditions per place. [2023-08-27 06:29:04,170 INFO L140 encePairwiseOnDemand]: 1467/1476 looper letters, 89 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-08-27 06:29:04,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 475 flow [2023-08-27 06:29:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1811 transitions. [2023-08-27 06:29:04,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40898825654923215 [2023-08-27 06:29:04,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1811 transitions. [2023-08-27 06:29:04,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1811 transitions. [2023-08-27 06:29:04,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:04,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1811 transitions. [2023-08-27 06:29:04,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,181 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 199 flow. Second operand 3 states and 1811 transitions. [2023-08-27 06:29:04,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 475 flow [2023-08-27 06:29:04,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 91 transitions, 471 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:04,184 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 221 flow [2023-08-27 06:29:04,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2023-08-27 06:29:04,184 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -11 predicate places. [2023-08-27 06:29:04,184 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 221 flow [2023-08-27 06:29:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 578.3333333333334) internal successors, (1735), 3 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:04,185 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:04,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 06:29:04,185 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:04,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:04,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2098915922, now seen corresponding path program 1 times [2023-08-27 06:29:04,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:04,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605310162] [2023-08-27 06:29:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-27 06:29:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:04,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605310162] [2023-08-27 06:29:04,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605310162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:04,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:04,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:04,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394885722] [2023-08-27 06:29:04,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:04,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:04,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:04,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:04,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:04,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:04,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:04,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:04,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:04,689 INFO L124 PetriNetUnfolderBase]: 1281/2066 cut-off events. [2023-08-27 06:29:04,690 INFO L125 PetriNetUnfolderBase]: For 333/333 co-relation queries the response was YES. [2023-08-27 06:29:04,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5126 conditions, 2066 events. 1281/2066 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 9324 event pairs, 1007 based on Foata normal form. 0/1393 useless extension candidates. Maximal degree in co-relation 5110. Up to 2066 conditions per place. [2023-08-27 06:29:04,698 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2023-08-27 06:29:04,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 58 transitions, 329 flow [2023-08-27 06:29:04,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2023-08-27 06:29:04,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2023-08-27 06:29:04,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2023-08-27 06:29:04,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2023-08-27 06:29:04,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:04,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2023-08-27 06:29:04,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,710 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 221 flow. Second operand 3 states and 1836 transitions. [2023-08-27 06:29:04,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 58 transitions, 329 flow [2023-08-27 06:29:04,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 58 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:04,712 INFO L231 Difference]: Finished difference. Result has 60 places, 58 transitions, 213 flow [2023-08-27 06:29:04,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=60, PETRI_TRANSITIONS=58} [2023-08-27 06:29:04,712 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2023-08-27 06:29:04,713 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 58 transitions, 213 flow [2023-08-27 06:29:04,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:04,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:04,713 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:04,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 06:29:04,713 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:04,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:04,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2098915854, now seen corresponding path program 1 times [2023-08-27 06:29:04,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:04,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175393472] [2023-08-27 06:29:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:04,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:04,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:04,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175393472] [2023-08-27 06:29:04,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175393472] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:04,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775256490] [2023-08-27 06:29:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:04,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:04,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:04,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:04,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 06:29:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:05,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:29:05,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:05,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:29:05,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775256490] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:05,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:29:05,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-27 06:29:05,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401778299] [2023-08-27 06:29:05,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:05,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:29:05,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:29:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:29:05,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:05,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 58 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 577.75) internal successors, (2311), 4 states have internal predecessors, (2311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:05,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:05,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:05,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:05,469 INFO L124 PetriNetUnfolderBase]: 1009/1670 cut-off events. [2023-08-27 06:29:05,469 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2023-08-27 06:29:05,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4031 conditions, 1670 events. 1009/1670 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8042 event pairs, 179 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 4014. Up to 908 conditions per place. [2023-08-27 06:29:05,475 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 112 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2023-08-27 06:29:05,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 114 transitions, 599 flow [2023-08-27 06:29:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:29:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:29:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2404 transitions. [2023-08-27 06:29:05,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4071815718157182 [2023-08-27 06:29:05,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2404 transitions. [2023-08-27 06:29:05,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2404 transitions. [2023-08-27 06:29:05,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:05,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2404 transitions. [2023-08-27 06:29:05,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 601.0) internal successors, (2404), 4 states have internal predecessors, (2404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:05,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:05,489 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:05,489 INFO L175 Difference]: Start difference. First operand has 60 places, 58 transitions, 213 flow. Second operand 4 states and 2404 transitions. [2023-08-27 06:29:05,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 114 transitions, 599 flow [2023-08-27 06:29:05,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 114 transitions, 598 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:05,492 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 204 flow [2023-08-27 06:29:05,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2023-08-27 06:29:05,492 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2023-08-27 06:29:05,493 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 204 flow [2023-08-27 06:29:05,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 577.75) internal successors, (2311), 4 states have internal predecessors, (2311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:05,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:05,493 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:05,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:05,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-27 06:29:05,703 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:05,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2098915849, now seen corresponding path program 1 times [2023-08-27 06:29:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665295103] [2023-08-27 06:29:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:05,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:05,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665295103] [2023-08-27 06:29:05,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665295103] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:05,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397401221] [2023-08-27 06:29:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:05,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:05,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:05,821 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:05,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 06:29:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:06,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-27 06:29:06,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:06,028 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:06,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:29:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397401221] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:29:06,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:29:06,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-27 06:29:06,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169037627] [2023-08-27 06:29:06,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:29:06,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:29:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:06,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:29:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:29:06,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:06,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 577.2857142857143) internal successors, (4041), 7 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:06,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:06,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:06,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:06,783 INFO L124 PetriNetUnfolderBase]: 1633/2690 cut-off events. [2023-08-27 06:29:06,784 INFO L125 PetriNetUnfolderBase]: For 417/417 co-relation queries the response was YES. [2023-08-27 06:29:06,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6535 conditions, 2690 events. 1633/2690 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13602 event pairs, 639 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 6518. Up to 1331 conditions per place. [2023-08-27 06:29:06,797 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 173 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2023-08-27 06:29:06,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 178 transitions, 916 flow [2023-08-27 06:29:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:29:06,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:29:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3622 transitions. [2023-08-27 06:29:06,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40898825654923215 [2023-08-27 06:29:06,804 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3622 transitions. [2023-08-27 06:29:06,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3622 transitions. [2023-08-27 06:29:06,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:06,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3622 transitions. [2023-08-27 06:29:06,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 603.6666666666666) internal successors, (3622), 6 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:06,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:06,816 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:06,816 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 204 flow. Second operand 6 states and 3622 transitions. [2023-08-27 06:29:06,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 178 transitions, 916 flow [2023-08-27 06:29:06,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 178 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:06,819 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 249 flow [2023-08-27 06:29:06,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2023-08-27 06:29:06,820 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -7 predicate places. [2023-08-27 06:29:06,820 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 249 flow [2023-08-27 06:29:06,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 577.2857142857143) internal successors, (4041), 7 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:06,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:06,821 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:06,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-27 06:29:07,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:07,027 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:07,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1629371808, now seen corresponding path program 1 times [2023-08-27 06:29:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:07,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139092115] [2023-08-27 06:29:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:07,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:07,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139092115] [2023-08-27 06:29:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139092115] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:07,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339727271] [2023-08-27 06:29:07,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:07,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:07,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:07,279 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:07,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 06:29:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:07,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 06:29:07,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-27 06:29:07,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:29:07,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339727271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:07,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:29:07,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2023-08-27 06:29:07,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924720034] [2023-08-27 06:29:07,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:07,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:07,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:07,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:29:07,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:07,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:07,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:07,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:07,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:07,955 INFO L124 PetriNetUnfolderBase]: 1485/2448 cut-off events. [2023-08-27 06:29:07,956 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2023-08-27 06:29:07,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6783 conditions, 2448 events. 1485/2448 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 11583 event pairs, 1241 based on Foata normal form. 0/2055 useless extension candidates. Maximal degree in co-relation 6763. Up to 2448 conditions per place. [2023-08-27 06:29:07,967 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2023-08-27 06:29:07,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 347 flow [2023-08-27 06:29:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2023-08-27 06:29:07,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41350496838301715 [2023-08-27 06:29:07,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1831 transitions. [2023-08-27 06:29:07,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1831 transitions. [2023-08-27 06:29:07,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:07,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1831 transitions. [2023-08-27 06:29:07,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.3333333333334) internal successors, (1831), 3 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:07,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:07,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:07,978 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 249 flow. Second operand 3 states and 1831 transitions. [2023-08-27 06:29:07,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 347 flow [2023-08-27 06:29:07,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 339 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:07,981 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 229 flow [2023-08-27 06:29:07,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-08-27 06:29:07,982 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:29:07,982 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 229 flow [2023-08-27 06:29:07,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:07,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:07,982 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:07,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-27 06:29:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-27 06:29:08,189 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:08,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:08,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1629371811, now seen corresponding path program 1 times [2023-08-27 06:29:08,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:08,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701340988] [2023-08-27 06:29:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-27 06:29:08,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:08,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701340988] [2023-08-27 06:29:08,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701340988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:08,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:08,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:08,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594489092] [2023-08-27 06:29:08,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:08,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:08,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:08,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:08,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:08,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:08,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:08,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:08,776 INFO L124 PetriNetUnfolderBase]: 1343/2216 cut-off events. [2023-08-27 06:29:08,776 INFO L125 PetriNetUnfolderBase]: For 1215/1215 co-relation queries the response was YES. [2023-08-27 06:29:08,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5742 conditions, 2216 events. 1343/2216 cut-off events. For 1215/1215 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 10292 event pairs, 1113 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 5720. Up to 2216 conditions per place. [2023-08-27 06:29:08,785 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-08-27 06:29:08,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 323 flow [2023-08-27 06:29:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1829 transitions. [2023-08-27 06:29:08,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4130532971996387 [2023-08-27 06:29:08,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1829 transitions. [2023-08-27 06:29:08,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1829 transitions. [2023-08-27 06:29:08,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:08,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1829 transitions. [2023-08-27 06:29:08,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.6666666666666) internal successors, (1829), 3 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:08,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:08,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:08,796 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 229 flow. Second operand 3 states and 1829 transitions. [2023-08-27 06:29:08,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 323 flow [2023-08-27 06:29:08,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 54 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:08,799 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 216 flow [2023-08-27 06:29:08,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2023-08-27 06:29:08,800 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -9 predicate places. [2023-08-27 06:29:08,800 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 216 flow [2023-08-27 06:29:08,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:08,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:08,800 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:08,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 06:29:08,800 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:08,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1629371810, now seen corresponding path program 2 times [2023-08-27 06:29:08,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:08,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144691574] [2023-08-27 06:29:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:08,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-27 06:29:09,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144691574] [2023-08-27 06:29:09,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144691574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:09,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:29:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140828652] [2023-08-27 06:29:09,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:09,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:09,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1476 [2023-08-27 06:29:09,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:09,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:09,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1476 [2023-08-27 06:29:09,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:09,663 INFO L124 PetriNetUnfolderBase]: 1207/1994 cut-off events. [2023-08-27 06:29:09,663 INFO L125 PetriNetUnfolderBase]: For 1149/1149 co-relation queries the response was YES. [2023-08-27 06:29:09,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4988 conditions, 1994 events. 1207/1994 cut-off events. For 1149/1149 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9083 event pairs, 991 based on Foata normal form. 84/1817 useless extension candidates. Maximal degree in co-relation 4965. Up to 1994 conditions per place. [2023-08-27 06:29:09,672 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2023-08-27 06:29:09,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 306 flow [2023-08-27 06:29:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:09,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1827 transitions. [2023-08-27 06:29:09,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41260162601626016 [2023-08-27 06:29:09,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1827 transitions. [2023-08-27 06:29:09,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1827 transitions. [2023-08-27 06:29:09,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:09,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1827 transitions. [2023-08-27 06:29:09,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:09,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:09,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:09,685 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 216 flow. Second operand 3 states and 1827 transitions. [2023-08-27 06:29:09,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 306 flow [2023-08-27 06:29:09,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 295 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-27 06:29:09,688 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 193 flow [2023-08-27 06:29:09,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2023-08-27 06:29:09,688 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2023-08-27 06:29:09,688 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 193 flow [2023-08-27 06:29:09,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 599.6666666666666) internal successors, (1799), 3 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:09,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:09,689 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:09,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 06:29:09,689 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:09,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:09,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1518459910, now seen corresponding path program 1 times [2023-08-27 06:29:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:09,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912490337] [2023-08-27 06:29:09,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:10,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:10,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912490337] [2023-08-27 06:29:10,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912490337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:10,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:10,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812084676] [2023-08-27 06:29:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:10,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:29:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:10,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:29:10,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:29:10,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 1476 [2023-08-27 06:29:10,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 558.75) internal successors, (2235), 4 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:10,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:10,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 1476 [2023-08-27 06:29:10,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:11,333 INFO L124 PetriNetUnfolderBase]: 1242/2096 cut-off events. [2023-08-27 06:29:11,333 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2023-08-27 06:29:11,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4928 conditions, 2096 events. 1242/2096 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10262 event pairs, 991 based on Foata normal form. 1/1836 useless extension candidates. Maximal degree in co-relation 4908. Up to 1969 conditions per place. [2023-08-27 06:29:11,341 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 65 selfloop transitions, 1 changer transitions 5/71 dead transitions. [2023-08-27 06:29:11,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 391 flow [2023-08-27 06:29:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:29:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:29:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2273 transitions. [2023-08-27 06:29:11,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3849932249322493 [2023-08-27 06:29:11,346 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2273 transitions. [2023-08-27 06:29:11,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2273 transitions. [2023-08-27 06:29:11,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:11,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2273 transitions. [2023-08-27 06:29:11,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 568.25) internal successors, (2273), 4 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:11,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:11,353 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:11,353 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 193 flow. Second operand 4 states and 2273 transitions. [2023-08-27 06:29:11,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 391 flow [2023-08-27 06:29:11,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 71 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:11,355 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 199 flow [2023-08-27 06:29:11,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2023-08-27 06:29:11,356 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2023-08-27 06:29:11,356 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 199 flow [2023-08-27 06:29:11,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 558.75) internal successors, (2235), 4 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:11,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:11,357 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:11,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 06:29:11,357 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:11,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:11,357 INFO L85 PathProgramCache]: Analyzing trace with hash 560471878, now seen corresponding path program 2 times [2023-08-27 06:29:11,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:11,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28831943] [2023-08-27 06:29:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:11,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:12,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:12,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28831943] [2023-08-27 06:29:12,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28831943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:12,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:12,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:12,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126161989] [2023-08-27 06:29:12,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:12,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:29:12,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:12,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:29:12,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:29:12,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 1476 [2023-08-27 06:29:12,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 558.75) internal successors, (2235), 4 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:12,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 1476 [2023-08-27 06:29:12,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:12,750 INFO L124 PetriNetUnfolderBase]: 1239/2087 cut-off events. [2023-08-27 06:29:12,750 INFO L125 PetriNetUnfolderBase]: For 471/471 co-relation queries the response was YES. [2023-08-27 06:29:12,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5013 conditions, 2087 events. 1239/2087 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10172 event pairs, 961 based on Foata normal form. 1/1827 useless extension candidates. Maximal degree in co-relation 4991. Up to 1927 conditions per place. [2023-08-27 06:29:12,756 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 76 selfloop transitions, 1 changer transitions 5/82 dead transitions. [2023-08-27 06:29:12,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 82 transitions, 450 flow [2023-08-27 06:29:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:29:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:29:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2287 transitions. [2023-08-27 06:29:12,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38736449864498645 [2023-08-27 06:29:12,761 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2287 transitions. [2023-08-27 06:29:12,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2287 transitions. [2023-08-27 06:29:12,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:12,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2287 transitions. [2023-08-27 06:29:12,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 571.75) internal successors, (2287), 4 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,768 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,768 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 199 flow. Second operand 4 states and 2287 transitions. [2023-08-27 06:29:12,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 82 transitions, 450 flow [2023-08-27 06:29:12,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 82 transitions, 444 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:12,770 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 203 flow [2023-08-27 06:29:12,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-08-27 06:29:12,771 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:29:12,771 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 203 flow [2023-08-27 06:29:12,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 558.75) internal successors, (2235), 4 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:12,771 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:12,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 06:29:12,772 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:12,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2124340960, now seen corresponding path program 1 times [2023-08-27 06:29:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:12,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489322621] [2023-08-27 06:29:12,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:12,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:12,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:12,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489322621] [2023-08-27 06:29:12,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489322621] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:12,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:12,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917851430] [2023-08-27 06:29:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:12,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:12,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:12,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1476 [2023-08-27 06:29:12,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:12,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:12,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1476 [2023-08-27 06:29:12,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:13,405 INFO L124 PetriNetUnfolderBase]: 1140/1915 cut-off events. [2023-08-27 06:29:13,405 INFO L125 PetriNetUnfolderBase]: For 695/695 co-relation queries the response was YES. [2023-08-27 06:29:13,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4725 conditions, 1915 events. 1140/1915 cut-off events. For 695/695 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9142 event pairs, 868 based on Foata normal form. 62/1736 useless extension candidates. Maximal degree in co-relation 4702. Up to 1756 conditions per place. [2023-08-27 06:29:13,412 INFO L140 encePairwiseOnDemand]: 1473/1476 looper letters, 74 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-27 06:29:13,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 426 flow [2023-08-27 06:29:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1751 transitions. [2023-08-27 06:29:13,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3954381210478771 [2023-08-27 06:29:13,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1751 transitions. [2023-08-27 06:29:13,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1751 transitions. [2023-08-27 06:29:13,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:13,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1751 transitions. [2023-08-27 06:29:13,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:13,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:13,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:13,421 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 203 flow. Second operand 3 states and 1751 transitions. [2023-08-27 06:29:13,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 426 flow [2023-08-27 06:29:13,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 421 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:13,424 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 206 flow [2023-08-27 06:29:13,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-08-27 06:29:13,424 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:29:13,424 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 206 flow [2023-08-27 06:29:13,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:13,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:13,425 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 06:29:13,425 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:13,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:13,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1990013111, now seen corresponding path program 1 times [2023-08-27 06:29:13,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:13,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689514980] [2023-08-27 06:29:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:13,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689514980] [2023-08-27 06:29:13,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689514980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:13,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:13,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:13,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408564193] [2023-08-27 06:29:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:13,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:13,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:13,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:13,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1476 [2023-08-27 06:29:13,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:13,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:13,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1476 [2023-08-27 06:29:13,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:13,996 INFO L124 PetriNetUnfolderBase]: 1177/1944 cut-off events. [2023-08-27 06:29:13,996 INFO L125 PetriNetUnfolderBase]: For 1095/1095 co-relation queries the response was YES. [2023-08-27 06:29:13,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 1944 events. 1177/1944 cut-off events. For 1095/1095 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8975 event pairs, 771 based on Foata normal form. 0/1703 useless extension candidates. Maximal degree in co-relation 5119. Up to 1591 conditions per place. [2023-08-27 06:29:14,003 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 67 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2023-08-27 06:29:14,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 410 flow [2023-08-27 06:29:14,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1742 transitions. [2023-08-27 06:29:14,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3934056007226739 [2023-08-27 06:29:14,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1742 transitions. [2023-08-27 06:29:14,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1742 transitions. [2023-08-27 06:29:14,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:14,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1742 transitions. [2023-08-27 06:29:14,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 580.6666666666666) internal successors, (1742), 3 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,012 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 206 flow. Second operand 3 states and 1742 transitions. [2023-08-27 06:29:14,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 71 transitions, 410 flow [2023-08-27 06:29:14,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 71 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:14,014 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 228 flow [2023-08-27 06:29:14,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2023-08-27 06:29:14,015 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -7 predicate places. [2023-08-27 06:29:14,015 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 228 flow [2023-08-27 06:29:14,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:14,015 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:14,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 06:29:14,016 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:14,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash 224892357, now seen corresponding path program 1 times [2023-08-27 06:29:14,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:14,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351642792] [2023-08-27 06:29:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:14,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-27 06:29:14,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:14,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351642792] [2023-08-27 06:29:14,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351642792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:14,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:14,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:14,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444010180] [2023-08-27 06:29:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:14,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:14,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:14,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:14,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1476 [2023-08-27 06:29:14,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:14,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1476 [2023-08-27 06:29:14,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:14,775 INFO L124 PetriNetUnfolderBase]: 1171/1938 cut-off events. [2023-08-27 06:29:14,775 INFO L125 PetriNetUnfolderBase]: For 988/988 co-relation queries the response was YES. [2023-08-27 06:29:14,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5311 conditions, 1938 events. 1171/1938 cut-off events. For 988/988 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9113 event pairs, 837 based on Foata normal form. 6/1727 useless extension candidates. Maximal degree in co-relation 5287. Up to 1687 conditions per place. [2023-08-27 06:29:14,781 INFO L140 encePairwiseOnDemand]: 1472/1476 looper letters, 86 selfloop transitions, 2 changer transitions 2/90 dead transitions. [2023-08-27 06:29:14,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 90 transitions, 526 flow [2023-08-27 06:29:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1818 transitions. [2023-08-27 06:29:14,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105691056910569 [2023-08-27 06:29:14,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1818 transitions. [2023-08-27 06:29:14,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1818 transitions. [2023-08-27 06:29:14,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:14,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1818 transitions. [2023-08-27 06:29:14,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,789 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 228 flow. Second operand 3 states and 1818 transitions. [2023-08-27 06:29:14,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 90 transitions, 526 flow [2023-08-27 06:29:14,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 519 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:14,791 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 234 flow [2023-08-27 06:29:14,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-27 06:29:14,792 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -5 predicate places. [2023-08-27 06:29:14,792 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 234 flow [2023-08-27 06:29:14,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:14,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:14,793 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:14,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 06:29:14,793 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:14,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:14,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1658948815, now seen corresponding path program 2 times [2023-08-27 06:29:14,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:14,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947769410] [2023-08-27 06:29:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:14,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-27 06:29:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:15,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947769410] [2023-08-27 06:29:15,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947769410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:15,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:29:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879048021] [2023-08-27 06:29:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:15,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:15,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:15,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:15,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1476 [2023-08-27 06:29:15,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:15,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1476 [2023-08-27 06:29:15,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:15,565 INFO L124 PetriNetUnfolderBase]: 1033/1698 cut-off events. [2023-08-27 06:29:15,566 INFO L125 PetriNetUnfolderBase]: For 1616/1616 co-relation queries the response was YES. [2023-08-27 06:29:15,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4624 conditions, 1698 events. 1033/1698 cut-off events. For 1616/1616 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 7496 event pairs, 490 based on Foata normal form. 74/1573 useless extension candidates. Maximal degree in co-relation 4599. Up to 1667 conditions per place. [2023-08-27 06:29:15,575 INFO L140 encePairwiseOnDemand]: 1472/1476 looper letters, 56 selfloop transitions, 2 changer transitions 4/62 dead transitions. [2023-08-27 06:29:15,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 385 flow [2023-08-27 06:29:15,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1798 transitions. [2023-08-27 06:29:15,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40605239385727193 [2023-08-27 06:29:15,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1798 transitions. [2023-08-27 06:29:15,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1798 transitions. [2023-08-27 06:29:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:15,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1798 transitions. [2023-08-27 06:29:15,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 599.3333333333334) internal successors, (1798), 3 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,609 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 234 flow. Second operand 3 states and 1798 transitions. [2023-08-27 06:29:15,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 385 flow [2023-08-27 06:29:15,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 377 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-27 06:29:15,612 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 241 flow [2023-08-27 06:29:15,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=241, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-27 06:29:15,614 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -5 predicate places. [2023-08-27 06:29:15,614 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 241 flow [2023-08-27 06:29:15,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:15,615 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:15,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 06:29:15,615 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:15,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash 654429639, now seen corresponding path program 1 times [2023-08-27 06:29:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:15,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133421728] [2023-08-27 06:29:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:15,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:15,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133421728] [2023-08-27 06:29:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133421728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:15,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:29:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487129227] [2023-08-27 06:29:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:15,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:29:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:29:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:29:15,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:15,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:15,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:15,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:15,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:16,004 INFO L124 PetriNetUnfolderBase]: 997/1632 cut-off events. [2023-08-27 06:29:16,004 INFO L125 PetriNetUnfolderBase]: For 1086/1086 co-relation queries the response was YES. [2023-08-27 06:29:16,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 1632 events. 997/1632 cut-off events. For 1086/1086 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 7142 event pairs, 789 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 4485. Up to 1632 conditions per place. [2023-08-27 06:29:16,010 INFO L140 encePairwiseOnDemand]: 1474/1476 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-08-27 06:29:16,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 345 flow [2023-08-27 06:29:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:29:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:29:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-08-27 06:29:16,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3974706413730804 [2023-08-27 06:29:16,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-08-27 06:29:16,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-08-27 06:29:16,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:16,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-08-27 06:29:16,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1476.0) internal successors, (5904), 4 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,017 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 241 flow. Second operand 3 states and 1760 transitions. [2023-08-27 06:29:16,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 345 flow [2023-08-27 06:29:16,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 54 transitions, 337 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:16,019 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 231 flow [2023-08-27 06:29:16,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2023-08-27 06:29:16,020 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2023-08-27 06:29:16,020 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 231 flow [2023-08-27 06:29:16,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:16,020 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:16,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 06:29:16,020 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:16,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash 654429175, now seen corresponding path program 1 times [2023-08-27 06:29:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:16,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191424855] [2023-08-27 06:29:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:16,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191424855] [2023-08-27 06:29:16,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191424855] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163936536] [2023-08-27 06:29:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:16,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:16,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:16,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:16,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-27 06:29:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:16,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-27 06:29:16,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:16,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:29:16,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163936536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:16,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:29:16,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-27 06:29:16,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655074888] [2023-08-27 06:29:16,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:16,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:29:16,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:29:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:29:16,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:16,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 579.5) internal successors, (2318), 4 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:16,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:16,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:16,735 INFO L124 PetriNetUnfolderBase]: 901/1470 cut-off events. [2023-08-27 06:29:16,735 INFO L125 PetriNetUnfolderBase]: For 717/717 co-relation queries the response was YES. [2023-08-27 06:29:16,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 1470 events. 901/1470 cut-off events. For 717/717 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6022 event pairs, 189 based on Foata normal form. 22/1359 useless extension candidates. Maximal degree in co-relation 3942. Up to 762 conditions per place. [2023-08-27 06:29:16,740 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 76 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2023-08-27 06:29:16,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 79 transitions, 468 flow [2023-08-27 06:29:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:29:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:29:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2357 transitions. [2023-08-27 06:29:16,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3992208672086721 [2023-08-27 06:29:16,744 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2357 transitions. [2023-08-27 06:29:16,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2357 transitions. [2023-08-27 06:29:16,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:16,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2357 transitions. [2023-08-27 06:29:16,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 589.25) internal successors, (2357), 4 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,751 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,751 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 231 flow. Second operand 4 states and 2357 transitions. [2023-08-27 06:29:16,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 79 transitions, 468 flow [2023-08-27 06:29:16,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 79 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:29:16,754 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 224 flow [2023-08-27 06:29:16,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2023-08-27 06:29:16,754 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -9 predicate places. [2023-08-27 06:29:16,754 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 224 flow [2023-08-27 06:29:16,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 579.5) internal successors, (2318), 4 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:16,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:16,755 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:16,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:16,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-08-27 06:29:16,961 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:16,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1187505404, now seen corresponding path program 1 times [2023-08-27 06:29:16,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:16,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435712117] [2023-08-27 06:29:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:16,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:17,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:17,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435712117] [2023-08-27 06:29:17,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435712117] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:17,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744872976] [2023-08-27 06:29:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:17,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:17,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:17,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-27 06:29:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:17,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:29:17,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:17,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:29:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:17,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744872976] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:29:17,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:29:17,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-27 06:29:17,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601194687] [2023-08-27 06:29:17,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:29:17,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:29:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:29:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:29:17,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 1476 [2023-08-27 06:29:17,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 580.5714285714286) internal successors, (4064), 7 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:17,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:17,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 1476 [2023-08-27 06:29:17,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:17,895 INFO L124 PetriNetUnfolderBase]: 1337/2204 cut-off events. [2023-08-27 06:29:17,895 INFO L125 PetriNetUnfolderBase]: For 1197/1197 co-relation queries the response was YES. [2023-08-27 06:29:17,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5911 conditions, 2204 events. 1337/2204 cut-off events. For 1197/1197 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9324 event pairs, 189 based on Foata normal form. 22/2071 useless extension candidates. Maximal degree in co-relation 5887. Up to 708 conditions per place. [2023-08-27 06:29:17,905 INFO L140 encePairwiseOnDemand]: 1471/1476 looper letters, 114 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2023-08-27 06:29:17,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 120 transitions, 687 flow [2023-08-27 06:29:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:29:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:29:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3540 transitions. [2023-08-27 06:29:17,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3997289972899729 [2023-08-27 06:29:17,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3540 transitions. [2023-08-27 06:29:17,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3540 transitions. [2023-08-27 06:29:17,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:17,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3540 transitions. [2023-08-27 06:29:17,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 590.0) internal successors, (3540), 6 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:17,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:17,919 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:17,919 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 224 flow. Second operand 6 states and 3540 transitions. [2023-08-27 06:29:17,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 120 transitions, 687 flow [2023-08-27 06:29:17,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 120 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:17,922 INFO L231 Difference]: Finished difference. Result has 67 places, 52 transitions, 241 flow [2023-08-27 06:29:17,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=67, PETRI_TRANSITIONS=52} [2023-08-27 06:29:17,922 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -5 predicate places. [2023-08-27 06:29:17,922 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 52 transitions, 241 flow [2023-08-27 06:29:17,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 580.5714285714286) internal successors, (4064), 7 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:17,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:17,923 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:17,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-27 06:29:18,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-08-27 06:29:18,126 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:18,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:18,127 INFO L85 PathProgramCache]: Analyzing trace with hash 37165938, now seen corresponding path program 1 times [2023-08-27 06:29:18,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:18,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652806812] [2023-08-27 06:29:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:18,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-27 06:29:18,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:18,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652806812] [2023-08-27 06:29:18,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652806812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:18,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:18,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:29:18,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961101178] [2023-08-27 06:29:18,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:18,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:29:18,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:18,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:29:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:29:18,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 545 out of 1476 [2023-08-27 06:29:18,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 52 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:18,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:18,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 545 of 1476 [2023-08-27 06:29:18,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:19,298 INFO L124 PetriNetUnfolderBase]: 1524/2519 cut-off events. [2023-08-27 06:29:19,299 INFO L125 PetriNetUnfolderBase]: For 1513/1513 co-relation queries the response was YES. [2023-08-27 06:29:19,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6933 conditions, 2519 events. 1524/2519 cut-off events. For 1513/1513 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 11226 event pairs, 907 based on Foata normal form. 0/2365 useless extension candidates. Maximal degree in co-relation 6907. Up to 1922 conditions per place. [2023-08-27 06:29:19,309 INFO L140 encePairwiseOnDemand]: 1469/1476 looper letters, 74 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2023-08-27 06:29:19,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 83 transitions, 509 flow [2023-08-27 06:29:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:29:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:29:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2237 transitions. [2023-08-27 06:29:19,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37889566395663954 [2023-08-27 06:29:19,312 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2237 transitions. [2023-08-27 06:29:19,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2237 transitions. [2023-08-27 06:29:19,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:19,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2237 transitions. [2023-08-27 06:29:19,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 559.25) internal successors, (2237), 4 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:19,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:19,319 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1476.0) internal successors, (7380), 5 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:19,319 INFO L175 Difference]: Start difference. First operand has 67 places, 52 transitions, 241 flow. Second operand 4 states and 2237 transitions. [2023-08-27 06:29:19,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 83 transitions, 509 flow [2023-08-27 06:29:19,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 83 transitions, 502 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-27 06:29:19,323 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 283 flow [2023-08-27 06:29:19,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=283, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2023-08-27 06:29:19,324 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -2 predicate places. [2023-08-27 06:29:19,324 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 283 flow [2023-08-27 06:29:19,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:19,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:19,325 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:19,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 06:29:19,325 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:19,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:19,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1639769514, now seen corresponding path program 2 times [2023-08-27 06:29:19,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:19,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614780108] [2023-08-27 06:29:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:19,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-27 06:29:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:20,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614780108] [2023-08-27 06:29:20,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614780108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:29:20,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:29:20,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 06:29:20,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21901555] [2023-08-27 06:29:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:29:20,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:29:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:20,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:29:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:29:20,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 535 out of 1476 [2023-08-27 06:29:20,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 283 flow. Second operand has 7 states, 7 states have (on average 538.4285714285714) internal successors, (3769), 7 states have internal predecessors, (3769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:20,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:20,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 535 of 1476 [2023-08-27 06:29:20,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:20,888 INFO L124 PetriNetUnfolderBase]: 1565/2602 cut-off events. [2023-08-27 06:29:20,888 INFO L125 PetriNetUnfolderBase]: For 1789/1789 co-relation queries the response was YES. [2023-08-27 06:29:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7518 conditions, 2602 events. 1565/2602 cut-off events. For 1789/1789 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 11687 event pairs, 1015 based on Foata normal form. 0/2535 useless extension candidates. Maximal degree in co-relation 7490. Up to 1893 conditions per place. [2023-08-27 06:29:20,905 INFO L140 encePairwiseOnDemand]: 1469/1476 looper letters, 72 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2023-08-27 06:29:20,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 81 transitions, 530 flow [2023-08-27 06:29:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:29:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:29:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3262 transitions. [2023-08-27 06:29:20,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3683378500451671 [2023-08-27 06:29:20,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3262 transitions. [2023-08-27 06:29:20,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3262 transitions. [2023-08-27 06:29:20,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:29:20,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3262 transitions. [2023-08-27 06:29:20,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 543.6666666666666) internal successors, (3262), 6 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:20,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:20,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1476.0) internal successors, (10332), 7 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:20,920 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 283 flow. Second operand 6 states and 3262 transitions. [2023-08-27 06:29:20,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 81 transitions, 530 flow [2023-08-27 06:29:20,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 06:29:20,924 INFO L231 Difference]: Finished difference. Result has 76 places, 57 transitions, 304 flow [2023-08-27 06:29:20,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=304, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2023-08-27 06:29:20,925 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 4 predicate places. [2023-08-27 06:29:20,925 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 57 transitions, 304 flow [2023-08-27 06:29:20,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 538.4285714285714) internal successors, (3769), 7 states have internal predecessors, (3769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:20,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:29:20,925 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:29:20,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 06:29:20,926 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:29:20,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:29:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash -492045157, now seen corresponding path program 1 times [2023-08-27 06:29:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:29:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056962941] [2023-08-27 06:29:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:20,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:29:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:25,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:29:25,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056962941] [2023-08-27 06:29:25,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056962941] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:29:25,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64802800] [2023-08-27 06:29:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:29:25,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:29:25,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:29:25,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:29:25,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-27 06:29:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:29:25,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:29:25,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:29:26,947 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:29:26,948 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 76 [2023-08-27 06:29:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:27,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:29:37,212 INFO L322 Elim1Store]: treesize reduction 275, result has 65.1 percent of original size [2023-08-27 06:29:37,212 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 231 treesize of output 657 [2023-08-27 06:29:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:29:38,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64802800] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:29:38,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:29:38,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 37 [2023-08-27 06:29:38,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189478280] [2023-08-27 06:29:38,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:29:38,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-27 06:29:38,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-27 06:29:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1207, Unknown=0, NotChecked=0, Total=1406 [2023-08-27 06:29:38,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:29:38,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 57 transitions, 304 flow. Second operand has 38 states, 38 states have (on average 467.6842105263158) internal successors, (17772), 38 states have internal predecessors, (17772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:29:38,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:38,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:29:38,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:30:07,836 INFO L124 PetriNetUnfolderBase]: 2881/4950 cut-off events. [2023-08-27 06:30:07,836 INFO L125 PetriNetUnfolderBase]: For 3786/3786 co-relation queries the response was YES. [2023-08-27 06:30:07,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14550 conditions, 4950 events. 2881/4950 cut-off events. For 3786/3786 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28056 event pairs, 565 based on Foata normal form. 17/4739 useless extension candidates. Maximal degree in co-relation 14519. Up to 2287 conditions per place. [2023-08-27 06:30:07,857 INFO L140 encePairwiseOnDemand]: 1458/1476 looper letters, 209 selfloop transitions, 233 changer transitions 11/453 dead transitions. [2023-08-27 06:30:07,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 453 transitions, 2755 flow [2023-08-27 06:30:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-08-27 06:30:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-08-27 06:30:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 29271 transitions. [2023-08-27 06:30:07,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3198596905323892 [2023-08-27 06:30:07,879 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 29271 transitions. [2023-08-27 06:30:07,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 29271 transitions. [2023-08-27 06:30:07,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:30:07,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 29271 transitions. [2023-08-27 06:30:07,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 472.11290322580646) internal successors, (29271), 62 states have internal predecessors, (29271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:07,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 1476.0) internal successors, (92988), 63 states have internal predecessors, (92988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:07,983 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 1476.0) internal successors, (92988), 63 states have internal predecessors, (92988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:07,983 INFO L175 Difference]: Start difference. First operand has 76 places, 57 transitions, 304 flow. Second operand 62 states and 29271 transitions. [2023-08-27 06:30:07,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 453 transitions, 2755 flow [2023-08-27 06:30:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 453 transitions, 2724 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 06:30:07,994 INFO L231 Difference]: Finished difference. Result has 155 places, 303 transitions, 2216 flow [2023-08-27 06:30:07,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=2216, PETRI_PLACES=155, PETRI_TRANSITIONS=303} [2023-08-27 06:30:07,994 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 83 predicate places. [2023-08-27 06:30:07,995 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 303 transitions, 2216 flow [2023-08-27 06:30:07,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 467.6842105263158) internal successors, (17772), 38 states have internal predecessors, (17772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:07,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:30:07,997 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:30:08,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-27 06:30:08,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-08-27 06:30:08,208 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:30:08,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:30:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -207680221, now seen corresponding path program 2 times [2023-08-27 06:30:08,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:30:08,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310979275] [2023-08-27 06:30:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:30:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:30:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:30:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:11,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:30:11,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310979275] [2023-08-27 06:30:11,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310979275] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:30:11,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634977878] [2023-08-27 06:30:11,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:30:11,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:30:11,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:30:11,805 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:30:11,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-27 06:30:12,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 06:30:12,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:30:12,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-27 06:30:12,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:30:13,588 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:13,588 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 80 [2023-08-27 06:30:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:14,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:30:16,756 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:16,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 413 treesize of output 403 [2023-08-27 06:30:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634977878] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:30:18,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:30:18,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 40 [2023-08-27 06:30:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156468161] [2023-08-27 06:30:18,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:30:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-27 06:30:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:30:18,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-27 06:30:18,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1442, Unknown=0, NotChecked=0, Total=1640 [2023-08-27 06:30:18,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:30:18,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 303 transitions, 2216 flow. Second operand has 41 states, 41 states have (on average 467.6341463414634) internal successors, (19173), 41 states have internal predecessors, (19173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:18,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:30:18,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:30:18,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:30:28,246 INFO L124 PetriNetUnfolderBase]: 4398/7676 cut-off events. [2023-08-27 06:30:28,247 INFO L125 PetriNetUnfolderBase]: For 30487/30487 co-relation queries the response was YES. [2023-08-27 06:30:28,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34297 conditions, 7676 events. 4398/7676 cut-off events. For 30487/30487 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 48558 event pairs, 567 based on Foata normal form. 156/7464 useless extension candidates. Maximal degree in co-relation 34245. Up to 2174 conditions per place. [2023-08-27 06:30:28,295 INFO L140 encePairwiseOnDemand]: 1458/1476 looper letters, 331 selfloop transitions, 301 changer transitions 92/724 dead transitions. [2023-08-27 06:30:28,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 724 transitions, 6822 flow [2023-08-27 06:30:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-08-27 06:30:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-08-27 06:30:28,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 19863 transitions. [2023-08-27 06:30:28,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3204123112659698 [2023-08-27 06:30:28,314 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 19863 transitions. [2023-08-27 06:30:28,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 19863 transitions. [2023-08-27 06:30:28,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:30:28,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 19863 transitions. [2023-08-27 06:30:28,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 472.92857142857144) internal successors, (19863), 42 states have internal predecessors, (19863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:28,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 1476.0) internal successors, (63468), 43 states have internal predecessors, (63468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:28,382 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 1476.0) internal successors, (63468), 43 states have internal predecessors, (63468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:28,382 INFO L175 Difference]: Start difference. First operand has 155 places, 303 transitions, 2216 flow. Second operand 42 states and 19863 transitions. [2023-08-27 06:30:28,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 724 transitions, 6822 flow [2023-08-27 06:30:28,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 724 transitions, 6446 flow, removed 160 selfloop flow, removed 3 redundant places. [2023-08-27 06:30:28,536 INFO L231 Difference]: Finished difference. Result has 226 places, 474 transitions, 4624 flow [2023-08-27 06:30:28,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=1990, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=4624, PETRI_PLACES=226, PETRI_TRANSITIONS=474} [2023-08-27 06:30:28,537 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 154 predicate places. [2023-08-27 06:30:28,537 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 474 transitions, 4624 flow [2023-08-27 06:30:28,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 467.6341463414634) internal successors, (19173), 41 states have internal predecessors, (19173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:28,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:30:28,540 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:30:28,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-27 06:30:28,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-08-27 06:30:28,747 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:30:28,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:30:28,748 INFO L85 PathProgramCache]: Analyzing trace with hash -346781755, now seen corresponding path program 3 times [2023-08-27 06:30:28,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:30:28,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882292183] [2023-08-27 06:30:28,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:30:28,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:30:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:30:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:32,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:30:32,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882292183] [2023-08-27 06:30:32,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882292183] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:30:32,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673467518] [2023-08-27 06:30:32,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-27 06:30:32,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:30:32,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:30:32,513 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:30:32,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-27 06:30:32,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-27 06:30:32,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:30:32,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 72 conjunts are in the unsatisfiable core [2023-08-27 06:30:32,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:30:32,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:30:32,939 INFO L322 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-08-27 06:30:32,940 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 23 [2023-08-27 06:30:33,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:30:33,018 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-27 06:30:33,019 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:30:33,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 50 [2023-08-27 06:30:33,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 224 [2023-08-27 06:30:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:34,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:30:37,145 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= 0 (mod c_~break_10~0 256))))) (and (or (and (< c_~result_8~0 0) .cse0) (forall ((v_ArrVal_1394 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1394))) (or (not (= (mod (select (select .cse1 c_~ends_with_6~0.base) c_~ends_with_6~0.offset) 256) 0)) (= (mod (select (select .cse1 c_~ends_with_2~0.base) c_~ends_with_2~0.offset) 256) 0))))) (or (and (<= 0 c_~result_8~0) (<= c_~result_8~0 0) .cse0) (forall ((v_ArrVal_1394 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1394))) (or (= (mod (select (select .cse2 c_~ends_with_2~0.base) c_~ends_with_2~0.offset) 256) 0) (= (mod (select (select .cse2 c_~ends_with_6~0.base) c_~ends_with_6~0.offset) 256) 0))))) (or (and .cse0 (< 0 c_~result_8~0)) (forall ((v_ArrVal_1394 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1394))) (or (not (= (mod (select (select .cse3 c_~ends_with_2~0.base) c_~ends_with_2~0.offset) 256) 0)) (= (mod (select (select .cse3 c_~ends_with_6~0.base) c_~ends_with_6~0.offset) 256) 0))))))) is different from false [2023-08-27 06:30:39,288 INFO L322 Elim1Store]: treesize reduction 15, result has 76.9 percent of original size [2023-08-27 06:30:39,288 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 257 [2023-08-27 06:30:39,316 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:39,317 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 207 [2023-08-27 06:30:39,331 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:39,331 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 203 [2023-08-27 06:30:39,346 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:39,347 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 199 [2023-08-27 06:30:39,361 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:39,361 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 195 [2023-08-27 06:30:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673467518] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:30:40,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:30:40,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 46 [2023-08-27 06:30:40,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146126799] [2023-08-27 06:30:40,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:30:40,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-08-27 06:30:40,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:30:40,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-08-27 06:30:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1922, Unknown=19, NotChecked=90, Total=2256 [2023-08-27 06:30:40,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 1476 [2023-08-27 06:30:40,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 474 transitions, 4624 flow. Second operand has 48 states, 48 states have (on average 455.5625) internal successors, (21867), 48 states have internal predecessors, (21867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:40,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:30:40,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 1476 [2023-08-27 06:30:40,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:30:50,857 INFO L124 PetriNetUnfolderBase]: 4313/7595 cut-off events. [2023-08-27 06:30:50,858 INFO L125 PetriNetUnfolderBase]: For 95262/95262 co-relation queries the response was YES. [2023-08-27 06:30:50,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46084 conditions, 7595 events. 4313/7595 cut-off events. For 95262/95262 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 47902 event pairs, 878 based on Foata normal form. 126/7710 useless extension candidates. Maximal degree in co-relation 45998. Up to 2193 conditions per place. [2023-08-27 06:30:50,922 INFO L140 encePairwiseOnDemand]: 1457/1476 looper letters, 359 selfloop transitions, 298 changer transitions 74/731 dead transitions. [2023-08-27 06:30:50,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 731 transitions, 9155 flow [2023-08-27 06:30:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-08-27 06:30:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-08-27 06:30:50,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 17487 transitions. [2023-08-27 06:30:50,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31177792041078306 [2023-08-27 06:30:50,943 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 17487 transitions. [2023-08-27 06:30:50,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 17487 transitions. [2023-08-27 06:30:50,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:30:50,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 17487 transitions. [2023-08-27 06:30:50,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 460.1842105263158) internal successors, (17487), 38 states have internal predecessors, (17487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:50,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 1476.0) internal successors, (57564), 39 states have internal predecessors, (57564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:51,001 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 1476.0) internal successors, (57564), 39 states have internal predecessors, (57564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:51,002 INFO L175 Difference]: Start difference. First operand has 226 places, 474 transitions, 4624 flow. Second operand 38 states and 17487 transitions. [2023-08-27 06:30:51,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 731 transitions, 9155 flow [2023-08-27 06:30:51,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 731 transitions, 8391 flow, removed 350 selfloop flow, removed 9 redundant places. [2023-08-27 06:30:51,458 INFO L231 Difference]: Finished difference. Result has 256 places, 501 transitions, 5785 flow [2023-08-27 06:30:51,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=4221, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=5785, PETRI_PLACES=256, PETRI_TRANSITIONS=501} [2023-08-27 06:30:51,459 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 184 predicate places. [2023-08-27 06:30:51,459 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 501 transitions, 5785 flow [2023-08-27 06:30:51,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 455.5625) internal successors, (21867), 48 states have internal predecessors, (21867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:30:51,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:30:51,461 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:30:51,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-27 06:30:51,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-08-27 06:30:51,662 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:30:51,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:30:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2081598427, now seen corresponding path program 4 times [2023-08-27 06:30:51,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:30:51,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652708629] [2023-08-27 06:30:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:30:51,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:30:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:30:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:54,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:30:54,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652708629] [2023-08-27 06:30:54,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652708629] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:30:54,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867885204] [2023-08-27 06:30:54,777 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-27 06:30:54,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:30:54,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:30:54,779 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:30:54,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-27 06:30:55,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-27 06:30:55,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:30:55,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-27 06:30:55,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:30:56,856 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:56,856 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 74 [2023-08-27 06:30:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:30:57,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:31:02,269 INFO L322 Elim1Store]: treesize reduction 95, result has 67.4 percent of original size [2023-08-27 06:31:02,270 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 109 treesize of output 260 [2023-08-27 06:31:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:02,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867885204] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:31:02,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:31:02,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 40 [2023-08-27 06:31:02,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934989066] [2023-08-27 06:31:02,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:31:02,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-27 06:31:02,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:02,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-27 06:31:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-08-27 06:31:02,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:31:02,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 501 transitions, 5785 flow. Second operand has 41 states, 41 states have (on average 467.609756097561) internal successors, (19172), 41 states have internal predecessors, (19172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:02,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:02,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:31:02,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:24,942 INFO L124 PetriNetUnfolderBase]: 4568/8179 cut-off events. [2023-08-27 06:31:24,942 INFO L125 PetriNetUnfolderBase]: For 93575/93575 co-relation queries the response was YES. [2023-08-27 06:31:24,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50576 conditions, 8179 events. 4568/8179 cut-off events. For 93575/93575 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 53451 event pairs, 1035 based on Foata normal form. 26/8205 useless extension candidates. Maximal degree in co-relation 50483. Up to 2669 conditions per place. [2023-08-27 06:31:25,014 INFO L140 encePairwiseOnDemand]: 1457/1476 looper letters, 404 selfloop transitions, 342 changer transitions 20/766 dead transitions. [2023-08-27 06:31:25,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 766 transitions, 10074 flow [2023-08-27 06:31:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-08-27 06:31:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2023-08-27 06:31:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 24051 transitions. [2023-08-27 06:31:25,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3195042244540092 [2023-08-27 06:31:25,031 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 24051 transitions. [2023-08-27 06:31:25,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 24051 transitions. [2023-08-27 06:31:25,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:25,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 24051 transitions. [2023-08-27 06:31:25,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 471.5882352941176) internal successors, (24051), 51 states have internal predecessors, (24051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:25,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 1476.0) internal successors, (76752), 52 states have internal predecessors, (76752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:25,116 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 1476.0) internal successors, (76752), 52 states have internal predecessors, (76752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:25,116 INFO L175 Difference]: Start difference. First operand has 256 places, 501 transitions, 5785 flow. Second operand 51 states and 24051 transitions. [2023-08-27 06:31:25,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 766 transitions, 10074 flow [2023-08-27 06:31:25,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 766 transitions, 9316 flow, removed 284 selfloop flow, removed 15 redundant places. [2023-08-27 06:31:25,778 INFO L231 Difference]: Finished difference. Result has 311 places, 610 transitions, 7788 flow [2023-08-27 06:31:25,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=5292, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=7788, PETRI_PLACES=311, PETRI_TRANSITIONS=610} [2023-08-27 06:31:25,778 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 239 predicate places. [2023-08-27 06:31:25,778 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 610 transitions, 7788 flow [2023-08-27 06:31:25,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 467.609756097561) internal successors, (19172), 41 states have internal predecessors, (19172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:25,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:25,781 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:25,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-08-27 06:31:25,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:31:25,982 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:31:25,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1473039493, now seen corresponding path program 5 times [2023-08-27 06:31:25,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:25,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525349831] [2023-08-27 06:31:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:25,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:29,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:29,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525349831] [2023-08-27 06:31:29,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525349831] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:31:29,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824754033] [2023-08-27 06:31:29,039 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-27 06:31:29,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:31:29,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:31:29,041 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:31:29,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-27 06:31:29,373 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-27 06:31:29,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:31:29,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:31:29,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:31:30,232 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:31:30,233 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2023-08-27 06:31:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:30,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:31:35,522 INFO L322 Elim1Store]: treesize reduction 128, result has 65.6 percent of original size [2023-08-27 06:31:35,522 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 149 treesize of output 334 [2023-08-27 06:31:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:35,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824754033] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:31:35,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:31:35,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 40 [2023-08-27 06:31:35,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367872603] [2023-08-27 06:31:35,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:31:35,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-27 06:31:35,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:35,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-27 06:31:35,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1430, Unknown=0, NotChecked=0, Total=1640 [2023-08-27 06:31:35,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:31:35,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 610 transitions, 7788 flow. Second operand has 41 states, 41 states have (on average 467.6341463414634) internal successors, (19173), 41 states have internal predecessors, (19173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:35,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:35,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:31:35,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:41,134 INFO L124 PetriNetUnfolderBase]: 4600/8239 cut-off events. [2023-08-27 06:31:41,135 INFO L125 PetriNetUnfolderBase]: For 91815/91815 co-relation queries the response was YES. [2023-08-27 06:31:41,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54804 conditions, 8239 events. 4600/8239 cut-off events. For 91815/91815 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 53932 event pairs, 1083 based on Foata normal form. 16/8255 useless extension candidates. Maximal degree in co-relation 54694. Up to 2516 conditions per place. [2023-08-27 06:31:41,217 INFO L140 encePairwiseOnDemand]: 1458/1476 looper letters, 437 selfloop transitions, 285 changer transitions 18/740 dead transitions. [2023-08-27 06:31:41,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 740 transitions, 11069 flow [2023-08-27 06:31:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-27 06:31:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-27 06:31:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 10416 transitions. [2023-08-27 06:31:41,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32076866223207684 [2023-08-27 06:31:41,224 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 10416 transitions. [2023-08-27 06:31:41,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 10416 transitions. [2023-08-27 06:31:41,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:41,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 10416 transitions. [2023-08-27 06:31:41,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 473.45454545454544) internal successors, (10416), 22 states have internal predecessors, (10416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:41,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 1476.0) internal successors, (33948), 23 states have internal predecessors, (33948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:41,244 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 1476.0) internal successors, (33948), 23 states have internal predecessors, (33948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:41,244 INFO L175 Difference]: Start difference. First operand has 311 places, 610 transitions, 7788 flow. Second operand 22 states and 10416 transitions. [2023-08-27 06:31:41,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 740 transitions, 11069 flow [2023-08-27 06:31:41,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 740 transitions, 10637 flow, removed 198 selfloop flow, removed 7 redundant places. [2023-08-27 06:31:41,746 INFO L231 Difference]: Finished difference. Result has 330 places, 623 transitions, 8234 flow [2023-08-27 06:31:41,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=7408, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8234, PETRI_PLACES=330, PETRI_TRANSITIONS=623} [2023-08-27 06:31:41,747 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 258 predicate places. [2023-08-27 06:31:41,747 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 623 transitions, 8234 flow [2023-08-27 06:31:41,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 467.6341463414634) internal successors, (19173), 41 states have internal predecessors, (19173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:41,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:41,749 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:41,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-27 06:31:41,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:31:41,950 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:31:41,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:41,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1629683895, now seen corresponding path program 6 times [2023-08-27 06:31:41,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:41,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912247279] [2023-08-27 06:31:41,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:41,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:45,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:45,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912247279] [2023-08-27 06:31:45,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912247279] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:31:45,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702526019] [2023-08-27 06:31:45,072 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-27 06:31:45,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:31:45,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:31:45,073 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:31:45,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-27 06:31:45,573 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-08-27 06:31:45,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:31:45,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:31:45,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:31:46,501 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:31:46,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2023-08-27 06:31:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:46,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:31:51,803 INFO L322 Elim1Store]: treesize reduction 95, result has 67.4 percent of original size [2023-08-27 06:31:51,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 129 treesize of output 272 [2023-08-27 06:31:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:31:51,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702526019] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:31:51,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:31:51,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 12] total 36 [2023-08-27 06:31:51,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131574786] [2023-08-27 06:31:51,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:31:51,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-27 06:31:51,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:51,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-27 06:31:51,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1161, Unknown=0, NotChecked=0, Total=1332 [2023-08-27 06:31:51,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:31:51,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 623 transitions, 8234 flow. Second operand has 37 states, 37 states have (on average 467.7567567567568) internal successors, (17307), 37 states have internal predecessors, (17307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:51,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:31:51,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:07,916 INFO L124 PetriNetUnfolderBase]: 4874/8749 cut-off events. [2023-08-27 06:32:07,916 INFO L125 PetriNetUnfolderBase]: For 104931/104931 co-relation queries the response was YES. [2023-08-27 06:32:07,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60136 conditions, 8749 events. 4874/8749 cut-off events. For 104931/104931 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 58334 event pairs, 993 based on Foata normal form. 10/8759 useless extension candidates. Maximal degree in co-relation 60020. Up to 2618 conditions per place. [2023-08-27 06:32:08,013 INFO L140 encePairwiseOnDemand]: 1458/1476 looper letters, 366 selfloop transitions, 456 changer transitions 22/844 dead transitions. [2023-08-27 06:32:08,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 844 transitions, 12731 flow [2023-08-27 06:32:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-08-27 06:32:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-08-27 06:32:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 20301 transitions. [2023-08-27 06:32:08,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31986197768954433 [2023-08-27 06:32:08,026 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 20301 transitions. [2023-08-27 06:32:08,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 20301 transitions. [2023-08-27 06:32:08,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:08,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 20301 transitions. [2023-08-27 06:32:08,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 472.1162790697674) internal successors, (20301), 43 states have internal predecessors, (20301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:08,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 1476.0) internal successors, (64944), 44 states have internal predecessors, (64944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:08,074 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 1476.0) internal successors, (64944), 44 states have internal predecessors, (64944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:08,075 INFO L175 Difference]: Start difference. First operand has 330 places, 623 transitions, 8234 flow. Second operand 43 states and 20301 transitions. [2023-08-27 06:32:08,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 844 transitions, 12731 flow [2023-08-27 06:32:08,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 844 transitions, 12309 flow, removed 73 selfloop flow, removed 15 redundant places. [2023-08-27 06:32:08,659 INFO L231 Difference]: Finished difference. Result has 365 places, 685 transitions, 10139 flow [2023-08-27 06:32:08,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=7929, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=395, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=10139, PETRI_PLACES=365, PETRI_TRANSITIONS=685} [2023-08-27 06:32:08,660 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 293 predicate places. [2023-08-27 06:32:08,660 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 685 transitions, 10139 flow [2023-08-27 06:32:08,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 467.7567567567568) internal successors, (17307), 37 states have internal predecessors, (17307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:08,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:08,662 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:32:08,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-27 06:32:08,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-08-27 06:32:08,863 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:32:08,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash -793425947, now seen corresponding path program 7 times [2023-08-27 06:32:08,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:08,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885759570] [2023-08-27 06:32:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:08,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:32:11,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885759570] [2023-08-27 06:32:11,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885759570] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:32:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684301239] [2023-08-27 06:32:11,518 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-27 06:32:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:32:11,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:32:11,518 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:32:11,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-27 06:32:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:11,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-27 06:32:11,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:32:12,503 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:32:12,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 268 treesize of output 232 [2023-08-27 06:32:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:32:13,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:32:18,358 INFO L322 Elim1Store]: treesize reduction 128, result has 65.6 percent of original size [2023-08-27 06:32:18,358 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 119 treesize of output 312 [2023-08-27 06:32:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:32:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684301239] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:32:18,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:32:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 38 [2023-08-27 06:32:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165352167] [2023-08-27 06:32:18,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:32:18,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-08-27 06:32:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-08-27 06:32:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1278, Unknown=0, NotChecked=0, Total=1482 [2023-08-27 06:32:18,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:32:18,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 685 transitions, 10139 flow. Second operand has 39 states, 39 states have (on average 467.6666666666667) internal successors, (18239), 39 states have internal predecessors, (18239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:18,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:18,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:32:18,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:33,668 INFO L124 PetriNetUnfolderBase]: 5865/10354 cut-off events. [2023-08-27 06:32:33,668 INFO L125 PetriNetUnfolderBase]: For 139728/139728 co-relation queries the response was YES. [2023-08-27 06:32:33,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76018 conditions, 10354 events. 5865/10354 cut-off events. For 139728/139728 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 69866 event pairs, 1041 based on Foata normal form. 17/10371 useless extension candidates. Maximal degree in co-relation 75899. Up to 3461 conditions per place. [2023-08-27 06:32:33,788 INFO L140 encePairwiseOnDemand]: 1458/1476 looper letters, 511 selfloop transitions, 401 changer transitions 26/938 dead transitions. [2023-08-27 06:32:33,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 938 transitions, 15422 flow [2023-08-27 06:32:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-27 06:32:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-27 06:32:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 16552 transitions. [2023-08-27 06:32:33,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32040263259775453 [2023-08-27 06:32:33,800 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 16552 transitions. [2023-08-27 06:32:33,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 16552 transitions. [2023-08-27 06:32:33,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:33,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 16552 transitions. [2023-08-27 06:32:33,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 472.9142857142857) internal successors, (16552), 35 states have internal predecessors, (16552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:33,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 1476.0) internal successors, (53136), 36 states have internal predecessors, (53136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:33,841 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 1476.0) internal successors, (53136), 36 states have internal predecessors, (53136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:33,841 INFO L175 Difference]: Start difference. First operand has 365 places, 685 transitions, 10139 flow. Second operand 35 states and 16552 transitions. [2023-08-27 06:32:33,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 938 transitions, 15422 flow [2023-08-27 06:32:34,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 938 transitions, 14841 flow, removed 157 selfloop flow, removed 14 redundant places. [2023-08-27 06:32:34,868 INFO L231 Difference]: Finished difference. Result has 396 places, 777 transitions, 12208 flow [2023-08-27 06:32:34,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=9648, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=12208, PETRI_PLACES=396, PETRI_TRANSITIONS=777} [2023-08-27 06:32:34,869 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 324 predicate places. [2023-08-27 06:32:34,869 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 777 transitions, 12208 flow [2023-08-27 06:32:34,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 467.6666666666667) internal successors, (18239), 39 states have internal predecessors, (18239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:34,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:34,871 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:32:34,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-27 06:32:35,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-08-27 06:32:35,073 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:32:35,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1382049101, now seen corresponding path program 8 times [2023-08-27 06:32:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628579371] [2023-08-27 06:32:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-08-27 06:32:37,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628579371] [2023-08-27 06:32:37,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628579371] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:32:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40586905] [2023-08-27 06:32:37,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:32:37,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:32:37,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:32:37,728 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:32:37,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-27 06:32:38,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 06:32:38,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:32:38,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:32:38,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:32:39,125 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:32:39,126 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2023-08-27 06:32:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:32:39,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:32:44,321 INFO L322 Elim1Store]: treesize reduction 132, result has 71.4 percent of original size [2023-08-27 06:32:44,321 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 192 treesize of output 456 [2023-08-27 06:32:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:32:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40586905] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:32:44,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:32:44,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 13] total 42 [2023-08-27 06:32:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689015157] [2023-08-27 06:32:44,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:32:44,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-08-27 06:32:44,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:44,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-08-27 06:32:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1586, Unknown=0, NotChecked=0, Total=1806 [2023-08-27 06:32:44,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 1476 [2023-08-27 06:32:44,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 777 transitions, 12208 flow. Second operand has 43 states, 43 states have (on average 455.6279069767442) internal successors, (19592), 43 states have internal predecessors, (19592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:44,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:44,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 1476 [2023-08-27 06:32:44,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:33:02,483 INFO L124 PetriNetUnfolderBase]: 6299/11299 cut-off events. [2023-08-27 06:33:02,483 INFO L125 PetriNetUnfolderBase]: For 187741/187741 co-relation queries the response was YES. [2023-08-27 06:33:02,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90134 conditions, 11299 events. 6299/11299 cut-off events. For 187741/187741 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 79561 event pairs, 1115 based on Foata normal form. 10/11309 useless extension candidates. Maximal degree in co-relation 90003. Up to 4879 conditions per place. [2023-08-27 06:33:02,625 INFO L140 encePairwiseOnDemand]: 1455/1476 looper letters, 527 selfloop transitions, 448 changer transitions 22/997 dead transitions. [2023-08-27 06:33:02,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 997 transitions, 17590 flow [2023-08-27 06:33:02,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-08-27 06:33:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-08-27 06:33:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 20217 transitions. [2023-08-27 06:33:02,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3112989652623799 [2023-08-27 06:33:02,639 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 20217 transitions. [2023-08-27 06:33:02,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 20217 transitions. [2023-08-27 06:33:02,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:33:02,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 20217 transitions. [2023-08-27 06:33:02,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 459.47727272727275) internal successors, (20217), 44 states have internal predecessors, (20217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:02,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 1476.0) internal successors, (66420), 45 states have internal predecessors, (66420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:02,686 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 1476.0) internal successors, (66420), 45 states have internal predecessors, (66420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:02,686 INFO L175 Difference]: Start difference. First operand has 396 places, 777 transitions, 12208 flow. Second operand 44 states and 20217 transitions. [2023-08-27 06:33:02,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 997 transitions, 17590 flow [2023-08-27 06:33:03,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 997 transitions, 16873 flow, removed 215 selfloop flow, removed 14 redundant places. [2023-08-27 06:33:03,953 INFO L231 Difference]: Finished difference. Result has 433 places, 860 transitions, 14384 flow [2023-08-27 06:33:03,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=11543, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=777, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=14384, PETRI_PLACES=433, PETRI_TRANSITIONS=860} [2023-08-27 06:33:03,954 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 361 predicate places. [2023-08-27 06:33:03,954 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 860 transitions, 14384 flow [2023-08-27 06:33:03,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 455.6279069767442) internal successors, (19592), 43 states have internal predecessors, (19592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:03,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:33:03,956 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:33:03,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-08-27 06:33:04,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-08-27 06:33:04,157 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:33:04,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:33:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash -448555759, now seen corresponding path program 9 times [2023-08-27 06:33:04,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:33:04,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600776252] [2023-08-27 06:33:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:33:04,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:33:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:33:06,622 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:33:06,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:33:06,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600776252] [2023-08-27 06:33:06,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600776252] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:33:06,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526409051] [2023-08-27 06:33:06,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-27 06:33:06,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:33:06,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:33:06,627 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:33:06,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-27 06:33:06,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-27 06:33:06,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:33:06,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:33:06,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:33:07,622 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:33:07,623 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 268 treesize of output 232 [2023-08-27 06:33:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:33:08,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:33:13,527 INFO L322 Elim1Store]: treesize reduction 275, result has 65.1 percent of original size [2023-08-27 06:33:13,527 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 225 treesize of output 651 [2023-08-27 06:33:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:33:14,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526409051] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:33:14,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:33:14,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 12] total 35 [2023-08-27 06:33:14,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902168499] [2023-08-27 06:33:14,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:33:14,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-27 06:33:14,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:33:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-27 06:33:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2023-08-27 06:33:14,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1476 [2023-08-27 06:33:14,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 860 transitions, 14384 flow. Second operand has 36 states, 36 states have (on average 467.77777777777777) internal successors, (16840), 36 states have internal predecessors, (16840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:14,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:33:14,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1476 [2023-08-27 06:33:14,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:33:35,821 INFO L124 PetriNetUnfolderBase]: 6369/11616 cut-off events. [2023-08-27 06:33:35,821 INFO L125 PetriNetUnfolderBase]: For 211428/211428 co-relation queries the response was YES. [2023-08-27 06:33:35,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97593 conditions, 11616 events. 6369/11616 cut-off events. For 211428/211428 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 83970 event pairs, 1082 based on Foata normal form. 16/11632 useless extension candidates. Maximal degree in co-relation 97453. Up to 4991 conditions per place. [2023-08-27 06:33:35,984 INFO L140 encePairwiseOnDemand]: 1459/1476 looper letters, 501 selfloop transitions, 506 changer transitions 27/1034 dead transitions. [2023-08-27 06:33:35,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1034 transitions, 18789 flow [2023-08-27 06:33:35,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-08-27 06:33:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-08-27 06:33:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 24989 transitions. [2023-08-27 06:33:35,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3194380528710947 [2023-08-27 06:33:35,999 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 24989 transitions. [2023-08-27 06:33:35,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 24989 transitions. [2023-08-27 06:33:36,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:33:36,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 24989 transitions. [2023-08-27 06:33:36,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 471.49056603773585) internal successors, (24989), 53 states have internal predecessors, (24989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:36,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 1476.0) internal successors, (79704), 54 states have internal predecessors, (79704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:36,065 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 1476.0) internal successors, (79704), 54 states have internal predecessors, (79704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:36,065 INFO L175 Difference]: Start difference. First operand has 433 places, 860 transitions, 14384 flow. Second operand 53 states and 24989 transitions. [2023-08-27 06:33:36,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1034 transitions, 18789 flow [2023-08-27 06:33:37,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1034 transitions, 18288 flow, removed 144 selfloop flow, removed 19 redundant places. [2023-08-27 06:33:38,007 INFO L231 Difference]: Finished difference. Result has 471 places, 887 transitions, 15697 flow [2023-08-27 06:33:38,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=13963, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=472, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=15697, PETRI_PLACES=471, PETRI_TRANSITIONS=887} [2023-08-27 06:33:38,008 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 399 predicate places. [2023-08-27 06:33:38,009 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 887 transitions, 15697 flow [2023-08-27 06:33:38,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 467.77777777777777) internal successors, (16840), 36 states have internal predecessors, (16840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:38,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:33:38,011 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:33:38,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-08-27 06:33:38,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:33:38,215 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:33:38,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:33:38,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1490056875, now seen corresponding path program 10 times [2023-08-27 06:33:38,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:33:38,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248423874] [2023-08-27 06:33:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:33:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:33:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:33:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-08-27 06:33:41,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:33:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248423874] [2023-08-27 06:33:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248423874] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:33:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732175675] [2023-08-27 06:33:41,358 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-27 06:33:41,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:33:41,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:33:41,359 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:33:41,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-08-27 06:33:41,698 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-27 06:33:41,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:33:41,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-27 06:33:41,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:33:42,890 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:33:42,890 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 80 [2023-08-27 06:33:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:33:43,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:33:48,999 INFO L322 Elim1Store]: treesize reduction 220, result has 67.1 percent of original size [2023-08-27 06:33:48,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 221 treesize of output 599 [2023-08-27 06:33:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:33:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732175675] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:33:49,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:33:49,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 13] total 42 [2023-08-27 06:33:49,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559351115] [2023-08-27 06:33:49,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:33:49,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-08-27 06:33:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:33:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-08-27 06:33:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1593, Unknown=0, NotChecked=0, Total=1806 [2023-08-27 06:33:49,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 1476 [2023-08-27 06:33:49,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 887 transitions, 15697 flow. Second operand has 43 states, 43 states have (on average 455.6279069767442) internal successors, (19592), 43 states have internal predecessors, (19592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:33:49,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:33:49,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 1476 [2023-08-27 06:33:49,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:34:06,409 INFO L124 PetriNetUnfolderBase]: 6656/12222 cut-off events. [2023-08-27 06:34:06,409 INFO L125 PetriNetUnfolderBase]: For 243037/243037 co-relation queries the response was YES. [2023-08-27 06:34:06,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106867 conditions, 12222 events. 6656/12222 cut-off events. For 243037/243037 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 89742 event pairs, 1413 based on Foata normal form. 27/12249 useless extension candidates. Maximal degree in co-relation 106722. Up to 6830 conditions per place. [2023-08-27 06:34:06,608 INFO L140 encePairwiseOnDemand]: 1455/1476 looper letters, 590 selfloop transitions, 432 changer transitions 35/1057 dead transitions. [2023-08-27 06:34:06,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1057 transitions, 20760 flow [2023-08-27 06:34:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-08-27 06:34:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-08-27 06:34:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 17465 transitions. [2023-08-27 06:34:06,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3113856796462701 [2023-08-27 06:34:06,619 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 17465 transitions. [2023-08-27 06:34:06,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 17465 transitions. [2023-08-27 06:34:06,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:34:06,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 17465 transitions. [2023-08-27 06:34:06,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 459.60526315789474) internal successors, (17465), 38 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:34:06,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 1476.0) internal successors, (57564), 39 states have internal predecessors, (57564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:34:06,663 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 1476.0) internal successors, (57564), 39 states have internal predecessors, (57564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:34:06,663 INFO L175 Difference]: Start difference. First operand has 471 places, 887 transitions, 15697 flow. Second operand 38 states and 17465 transitions. [2023-08-27 06:34:06,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1057 transitions, 20760 flow [2023-08-27 06:34:09,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1057 transitions, 20019 flow, removed 43 selfloop flow, removed 37 redundant places. [2023-08-27 06:34:09,525 INFO L231 Difference]: Finished difference. Result has 468 places, 929 transitions, 16945 flow [2023-08-27 06:34:09,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1476, PETRI_DIFFERENCE_MINUEND_FLOW=15028, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=385, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=16945, PETRI_PLACES=468, PETRI_TRANSITIONS=929} [2023-08-27 06:34:09,526 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 396 predicate places. [2023-08-27 06:34:09,526 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 929 transitions, 16945 flow [2023-08-27 06:34:09,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 455.6279069767442) internal successors, (19592), 43 states have internal predecessors, (19592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:34:09,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:34:09,529 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:34:09,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-08-27 06:34:09,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-08-27 06:34:09,740 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-08-27 06:34:09,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:34:09,740 INFO L85 PathProgramCache]: Analyzing trace with hash 470141121, now seen corresponding path program 11 times [2023-08-27 06:34:09,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:34:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207026109] [2023-08-27 06:34:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:34:09,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:34:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:34:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:34:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:34:12,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207026109] [2023-08-27 06:34:12,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207026109] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:34:12,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727660128] [2023-08-27 06:34:12,487 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-27 06:34:12,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:34:12,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:34:12,488 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:34:12,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-08-27 06:34:12,880 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-27 06:34:12,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:34:12,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-27 06:34:12,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:34:13,866 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:34:13,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 46 [2023-08-27 06:34:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-27 06:34:14,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:34:19,974 INFO L322 Elim1Store]: treesize reduction 128, result has 65.6 percent of original size [2023-08-27 06:34:19,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 149 treesize of output 334 Received shutdown request... [2023-08-27 06:41:00,369 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (80 of 81 remaining) [2023-08-27 06:41:00,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-08-27 06:41:00,397 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 06:41:00,400 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 06:41:00,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:41:00,578 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. [2023-08-27 06:41:00,579 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 81 remaining) [2023-08-27 06:41:00,579 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 81 remaining) [2023-08-27 06:41:00,579 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 81 remaining) [2023-08-27 06:41:00,580 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 81 remaining) [2023-08-27 06:41:00,580 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 81 remaining) [2023-08-27 06:41:00,580 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 81 remaining) [2023-08-27 06:41:00,580 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 81 remaining) [2023-08-27 06:41:00,580 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 81 remaining) [2023-08-27 06:41:00,581 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 81 remaining) [2023-08-27 06:41:00,582 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 81 remaining) [2023-08-27 06:41:00,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 81 remaining) [2023-08-27 06:41:00,584 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 81 remaining) [2023-08-27 06:41:00,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 81 remaining) [2023-08-27 06:41:00,586 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 81 remaining) [2023-08-27 06:41:00,587 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 81 remaining) [2023-08-27 06:41:00,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 81 remaining) [2023-08-27 06:41:00,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 81 remaining) [2023-08-27 06:41:00,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 81 remaining) [2023-08-27 06:41:00,591 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 81 remaining) [2023-08-27 06:41:00,592 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 81 remaining) [2023-08-27 06:41:00,592 INFO L445 BasicCegarLoop]: Path program histogram: [11, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:41:00,601 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:41:00,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:41:00,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:41:00 BasicIcfg [2023-08-27 06:41:00,609 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:41:00,609 INFO L158 Benchmark]: Toolchain (without parser) took 765909.32ms. Allocated memory was 406.8MB in the beginning and 4.0GB in the end (delta: 3.6GB). Free memory was 383.3MB in the beginning and 1.8GB in the end (delta: -1.4GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-27 06:41:00,609 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 406.8MB. Free memory is still 383.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:41:00,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.60ms. Allocated memory is still 406.8MB. Free memory was 382.9MB in the beginning and 369.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 06:41:00,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.61ms. Allocated memory is still 406.8MB. Free memory was 369.5MB in the beginning and 366.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:41:00,610 INFO L158 Benchmark]: Boogie Preprocessor took 54.66ms. Allocated memory is still 406.8MB. Free memory was 365.9MB in the beginning and 363.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 06:41:00,610 INFO L158 Benchmark]: RCFGBuilder took 929.16ms. Allocated memory is still 406.8MB. Free memory was 363.2MB in the beginning and 373.8MB in the end (delta: -10.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.0GB. [2023-08-27 06:41:00,610 INFO L158 Benchmark]: TraceAbstraction took 764524.29ms. Allocated memory was 406.8MB in the beginning and 4.0GB in the end (delta: 3.6GB). Free memory was 373.0MB in the beginning and 1.8GB in the end (delta: -1.4GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-27 06:41:00,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 406.8MB. Free memory is still 383.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 328.60ms. Allocated memory is still 406.8MB. Free memory was 382.9MB in the beginning and 369.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.61ms. Allocated memory is still 406.8MB. Free memory was 369.5MB in the beginning and 366.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 54.66ms. Allocated memory is still 406.8MB. Free memory was 365.9MB in the beginning and 363.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 929.16ms. Allocated memory is still 406.8MB. Free memory was 363.2MB in the beginning and 373.8MB in the end (delta: -10.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.0GB. * TraceAbstraction took 764524.29ms. Allocated memory was 406.8MB in the beginning and 4.0GB in the end (delta: 3.6GB). Free memory was 373.0MB in the beginning and 1.8GB in the end (delta: -1.4GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8s, 567 PlacesBefore, 72 PlacesAfterwards, 621 TransitionsBefore, 73 TransitionsAfterwards, 105228 CoEnabledTransitionPairs, 8 FixpointIterations, 157 TrivialSequentialCompositions, 481 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 133 ConcurrentYvCompositions, 53 ChoiceCompositions, 844 TotalNumberOfCompositions, 102639 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100163, independent: 100032, independent conditional: 0, independent unconditional: 100032, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 62206, independent: 62180, independent conditional: 0, independent unconditional: 62180, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 100163, independent: 37852, independent conditional: 0, independent unconditional: 37852, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 62206, unknown conditional: 0, unknown unconditional: 62206] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 341, Positive conditional cache size: 0, Positive unconditional cache size: 341, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 122]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-5-7-4-14-4-4-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-25-5-7-4-14-4-4-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 968 locations, 81 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: 764.4s, OverallIterations: 41, TraceHistogramMax: 5, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 189.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 39.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5453 SdHoareTripleChecker+Valid, 22.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5453 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 20.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 220 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1303 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23325 IncrementalHoareTripleChecker+Invalid, 24848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1303 mSolverCounterUnsat, 0 mSDtfsCounter, 23325 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1667 GetRequests, 774 SyntacticMatches, 6 SemanticMatches, 887 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18325 ImplicationChecksByTransitivity, 137.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16945occurred in iteration=40, InterpolantAutomatonStates: 543, 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: 0.6s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 112.3s InterpolantComputationTime, 1357 NumberOfCodeBlocks, 1337 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 1681 ConstructedInterpolants, 31 QuantifiedInterpolants, 42103 SizeOfPredicates, 579 NumberOfNonLiveVariables, 5495 ConjunctsInSsa, 627 ConjunctsInUnsatCore, 75 InterpolantComputations, 25 PerfectInterpolantSequences, 1876/2047 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown