/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 13:04:49,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 13:04:50,046 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 13:04:50,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 13:04:50,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 13:04:50,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 13:04:50,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 13:04:50,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 13:04:50,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 13:04:50,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 13:04:50,087 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 13:04:50,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 13:04:50,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 13:04:50,089 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 13:04:50,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 13:04:50,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 13:04:50,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 13:04:50,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 13:04:50,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 13:04:50,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 13:04:50,090 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 13:04:50,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 13:04:50,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 13:04:50,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 13:04:50,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 13:04:50,092 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 13:04:50,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 13:04:50,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 13:04:50,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 13:04:50,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 13:04:50,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 13:04:50,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 13:04:50,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 13:04:50,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 13:04:50,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 13:04:50,095 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 13:04:50,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 13:04:50,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 13:04:50,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 13:04:50,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 13:04:50,411 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 13:04:50,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-27 13:04:51,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 13:04:51,827 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 13:04:51,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-27 13:04:51,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5757b3ed8/be82f0dc97b045009f4b415731c75bd6/FLAGed1f05059 [2023-08-27 13:04:51,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5757b3ed8/be82f0dc97b045009f4b415731c75bd6 [2023-08-27 13:04:51,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 13:04:51,850 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 13:04:51,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 13:04:51,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 13:04:51,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 13:04:51,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:04:51" (1/1) ... [2023-08-27 13:04:51,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793e57db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:51, skipping insertion in model container [2023-08-27 13:04:51,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:04:51" (1/1) ... [2023-08-27 13:04:51,880 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 13:04:52,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 13:04:52,073 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 13:04:52,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 13:04:52,121 INFO L206 MainTranslator]: Completed translation [2023-08-27 13:04:52,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52 WrapperNode [2023-08-27 13:04:52,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 13:04:52,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 13:04:52,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 13:04:52,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 13:04:52,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,179 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 213 [2023-08-27 13:04:52,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 13:04:52,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 13:04:52,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 13:04:52,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 13:04:52,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 13:04:52,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 13:04:52,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 13:04:52,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 13:04:52,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (1/1) ... [2023-08-27 13:04:52,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 13:04:52,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:04:52,255 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 13:04:52,280 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 13:04:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 13:04:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 13:04:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 13:04:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 13:04:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 13:04:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 13:04:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 13:04:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 13:04:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 13:04:52,299 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 13:04:52,423 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 13:04:52,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 13:04:52,835 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 13:04:52,844 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 13:04:52,844 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 13:04:52,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:04:52 BoogieIcfgContainer [2023-08-27 13:04:52,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 13:04:52,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 13:04:52,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 13:04:52,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 13:04:52,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 01:04:51" (1/3) ... [2023-08-27 13:04:52,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4864f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:04:52, skipping insertion in model container [2023-08-27 13:04:52,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:04:52" (2/3) ... [2023-08-27 13:04:52,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4864f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:04:52, skipping insertion in model container [2023-08-27 13:04:52,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:04:52" (3/3) ... [2023-08-27 13:04:52,859 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2023-08-27 13:04:52,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 13:04:52,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-27 13:04:52,874 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 13:04:52,992 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 13:04:53,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 262 transitions, 548 flow [2023-08-27 13:04:53,147 INFO L124 PetriNetUnfolderBase]: 19/259 cut-off events. [2023-08-27 13:04:53,147 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 13:04:53,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 259 events. 19/259 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 670 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-08-27 13:04:53,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 262 transitions, 548 flow [2023-08-27 13:04:53,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 248 transitions, 514 flow [2023-08-27 13:04:53,165 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 13:04:53,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 248 transitions, 514 flow [2023-08-27 13:04:53,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 248 transitions, 514 flow [2023-08-27 13:04:53,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 248 transitions, 514 flow [2023-08-27 13:04:53,223 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2023-08-27 13:04:53,223 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 13:04:53,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 248 events. 19/248 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 671 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-08-27 13:04:53,238 INFO L119 LiptonReduction]: Number of co-enabled transitions 22848 [2023-08-27 13:05:06,131 INFO L134 LiptonReduction]: Checked pairs total: 22521 [2023-08-27 13:05:06,132 INFO L136 LiptonReduction]: Total number of compositions: 326 [2023-08-27 13:05:06,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 13:05:06,149 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;@5382e7cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 13:05:06,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-27 13:05:06,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 13:05:06,152 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 13:05:06,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:05:06,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:06,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:05:06,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:06,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:06,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1101286, now seen corresponding path program 1 times [2023-08-27 13:05:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:06,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953778953] [2023-08-27 13:05:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:06,433 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 13:05:06,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:06,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953778953] [2023-08-27 13:05:06,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953778953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:06,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:06,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:06,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925375269] [2023-08-27 13:05:06,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:06,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:06,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:06,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:06,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:06,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:06,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:06,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:06,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:06,791 INFO L124 PetriNetUnfolderBase]: 777/1212 cut-off events. [2023-08-27 13:05:06,791 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-27 13:05:06,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2528 conditions, 1212 events. 777/1212 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 5479 event pairs, 777 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 2116. Up to 1212 conditions per place. [2023-08-27 13:05:06,802 INFO L140 encePairwiseOnDemand]: 579/588 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 13:05:06,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 122 flow [2023-08-27 13:05:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2023-08-27 13:05:06,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4342403628117914 [2023-08-27 13:05:06,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2023-08-27 13:05:06,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2023-08-27 13:05:06,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:06,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2023-08-27 13:05:06,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,842 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 86 flow. Second operand 3 states and 766 transitions. [2023-08-27 13:05:06,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 122 flow [2023-08-27 13:05:06,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 13:05:06,852 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 60 flow [2023-08-27 13:05:06,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-27 13:05:06,858 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-08-27 13:05:06,858 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 60 flow [2023-08-27 13:05:06,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:06,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:05:06,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 13:05:06,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:06,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:06,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1101300, now seen corresponding path program 1 times [2023-08-27 13:05:06,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:06,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952103624] [2023-08-27 13:05:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:06,966 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 13:05:06,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:06,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952103624] [2023-08-27 13:05:06,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952103624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:06,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:06,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:06,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228482818] [2023-08-27 13:05:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:06,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:06,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:06,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:06,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:06,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:06,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:07,117 INFO L124 PetriNetUnfolderBase]: 493/788 cut-off events. [2023-08-27 13:05:07,118 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-27 13:05:07,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 788 events. 493/788 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 3307 event pairs, 493 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 1595. Up to 788 conditions per place. [2023-08-27 13:05:07,123 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 13:05:07,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 104 flow [2023-08-27 13:05:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 758 transitions. [2023-08-27 13:05:07,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42970521541950113 [2023-08-27 13:05:07,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 758 transitions. [2023-08-27 13:05:07,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 758 transitions. [2023-08-27 13:05:07,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:07,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 758 transitions. [2023-08-27 13:05:07,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,135 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 60 flow. Second operand 3 states and 758 transitions. [2023-08-27 13:05:07,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 104 flow [2023-08-27 13:05:07,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:07,136 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 57 flow [2023-08-27 13:05:07,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-27 13:05:07,138 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 13:05:07,138 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 57 flow [2023-08-27 13:05:07,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:07,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:05:07,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 13:05:07,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:07,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1101314, now seen corresponding path program 1 times [2023-08-27 13:05:07,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:07,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870807724] [2023-08-27 13:05:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:07,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:07,249 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 13:05:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870807724] [2023-08-27 13:05:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870807724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:07,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:07,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268592524] [2023-08-27 13:05:07,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:07,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:07,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:07,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:07,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:07,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:07,354 INFO L124 PetriNetUnfolderBase]: 315/518 cut-off events. [2023-08-27 13:05:07,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:05:07,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 518 events. 315/518 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1983 event pairs, 315 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 1050. Up to 518 conditions per place. [2023-08-27 13:05:07,356 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 13:05:07,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 97 flow [2023-08-27 13:05:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 756 transitions. [2023-08-27 13:05:07,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2023-08-27 13:05:07,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 756 transitions. [2023-08-27 13:05:07,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 756 transitions. [2023-08-27 13:05:07,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:07,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 756 transitions. [2023-08-27 13:05:07,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,394 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 3 states and 756 transitions. [2023-08-27 13:05:07,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 97 flow [2023-08-27 13:05:07,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:07,395 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 54 flow [2023-08-27 13:05:07,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-27 13:05:07,396 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-27 13:05:07,396 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 54 flow [2023-08-27 13:05:07,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:07,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:05:07,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 13:05:07,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:07,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1101315, now seen corresponding path program 1 times [2023-08-27 13:05:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327417157] [2023-08-27 13:05:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:07,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:07,438 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 13:05:07,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327417157] [2023-08-27 13:05:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327417157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:07,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954153586] [2023-08-27 13:05:07,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:07,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:07,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:07,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:07,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:07,516 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 13:05:07,516 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:05:07,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 300 events. 173/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 999 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 609. Up to 300 conditions per place. [2023-08-27 13:05:07,518 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 13:05:07,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 90 flow [2023-08-27 13:05:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2023-08-27 13:05:07,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427437641723356 [2023-08-27 13:05:07,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2023-08-27 13:05:07,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2023-08-27 13:05:07,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:07,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2023-08-27 13:05:07,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,527 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 54 flow. Second operand 3 states and 754 transitions. [2023-08-27 13:05:07,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 90 flow [2023-08-27 13:05:07,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:07,528 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 51 flow [2023-08-27 13:05:07,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-27 13:05:07,529 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-27 13:05:07,529 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 51 flow [2023-08-27 13:05:07,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:07,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 13:05:07,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 13:05:07,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:07,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1058297481, now seen corresponding path program 1 times [2023-08-27 13:05:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339290144] [2023-08-27 13:05:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:07,567 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 13:05:07,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:07,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339290144] [2023-08-27 13:05:07,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339290144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:07,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:07,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:07,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905702696] [2023-08-27 13:05:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:07,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:07,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:07,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:07,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:07,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:07,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:07,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:07,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:07,624 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 13:05:07,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:05:07,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 172 events. 93/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 470 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 351. Up to 172 conditions per place. [2023-08-27 13:05:07,625 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 13:05:07,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 83 flow [2023-08-27 13:05:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2023-08-27 13:05:07,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42630385487528344 [2023-08-27 13:05:07,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2023-08-27 13:05:07,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2023-08-27 13:05:07,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:07,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2023-08-27 13:05:07,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,634 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 51 flow. Second operand 3 states and 752 transitions. [2023-08-27 13:05:07,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 83 flow [2023-08-27 13:05:07,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:07,635 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 48 flow [2023-08-27 13:05:07,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-27 13:05:07,636 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 13:05:07,636 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 48 flow [2023-08-27 13:05:07,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:07,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 13:05:07,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 13:05:07,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:07,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1058297434, now seen corresponding path program 1 times [2023-08-27 13:05:07,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:07,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734071074] [2023-08-27 13:05:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:07,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:07,670 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 13:05:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734071074] [2023-08-27 13:05:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734071074] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:05:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905352320] [2023-08-27 13:05:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:07,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:05:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:05:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:05:07,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 13:05:07,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:07,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 13:05:07,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:07,715 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 13:05:07,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:05:07,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 80 events. 37/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place. [2023-08-27 13:05:07,716 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 13:05:07,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 76 flow [2023-08-27 13:05:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:05:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:05:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2023-08-27 13:05:07,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517006802721086 [2023-08-27 13:05:07,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2023-08-27 13:05:07,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2023-08-27 13:05:07,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:07,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2023-08-27 13:05:07,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,725 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 48 flow. Second operand 3 states and 750 transitions. [2023-08-27 13:05:07,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 76 flow [2023-08-27 13:05:07,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:07,725 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 45 flow [2023-08-27 13:05:07,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-27 13:05:07,726 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -17 predicate places. [2023-08-27 13:05:07,726 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 45 flow [2023-08-27 13:05:07,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:07,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:07,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:07,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 13:05:07,727 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:07,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1092299807, now seen corresponding path program 1 times [2023-08-27 13:05:07,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:07,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78252670] [2023-08-27 13:05:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:07,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:08,811 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 13:05:08,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:08,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78252670] [2023-08-27 13:05:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78252670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:08,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:08,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605930086] [2023-08-27 13:05:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:08,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:08,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:08,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:08,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:08,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:08,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:08,996 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 13:05:08,996 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 13:05:08,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 334 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 218. Up to 48 conditions per place. [2023-08-27 13:05:08,997 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-27 13:05:08,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 199 flow [2023-08-27 13:05:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1311 transitions. [2023-08-27 13:05:09,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3715986394557823 [2023-08-27 13:05:09,001 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1311 transitions. [2023-08-27 13:05:09,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1311 transitions. [2023-08-27 13:05:09,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:09,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1311 transitions. [2023-08-27 13:05:09,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:09,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:09,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:09,012 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 45 flow. Second operand 6 states and 1311 transitions. [2023-08-27 13:05:09,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 199 flow [2023-08-27 13:05:09,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:09,014 INFO L231 Difference]: Finished difference. Result has 33 places, 18 transitions, 63 flow [2023-08-27 13:05:09,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=63, PETRI_PLACES=33, PETRI_TRANSITIONS=18} [2023-08-27 13:05:09,015 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-27 13:05:09,015 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 18 transitions, 63 flow [2023-08-27 13:05:09,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:09,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:09,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:09,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 13:05:09,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:09,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1524613921, now seen corresponding path program 2 times [2023-08-27 13:05:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:09,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454517174] [2023-08-27 13:05:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:09,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:09,908 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 13:05:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454517174] [2023-08-27 13:05:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454517174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:09,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:09,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043180718] [2023-08-27 13:05:09,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:09,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:09,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:09,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:09,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:09,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 18 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:09,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:09,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:09,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:10,112 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 13:05:10,113 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-27 13:05:10,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 405 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 285. Up to 45 conditions per place. [2023-08-27 13:05:10,114 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-27 13:05:10,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 241 flow [2023-08-27 13:05:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1312 transitions. [2023-08-27 13:05:10,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37188208616780044 [2023-08-27 13:05:10,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1312 transitions. [2023-08-27 13:05:10,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1312 transitions. [2023-08-27 13:05:10,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:10,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1312 transitions. [2023-08-27 13:05:10,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.66666666666666) internal successors, (1312), 6 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,127 INFO L175 Difference]: Start difference. First operand has 33 places, 18 transitions, 63 flow. Second operand 6 states and 1312 transitions. [2023-08-27 13:05:10,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 241 flow [2023-08-27 13:05:10,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 237 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 13:05:10,131 INFO L231 Difference]: Finished difference. Result has 40 places, 21 transitions, 101 flow [2023-08-27 13:05:10,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=40, PETRI_TRANSITIONS=21} [2023-08-27 13:05:10,133 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -4 predicate places. [2023-08-27 13:05:10,133 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 21 transitions, 101 flow [2023-08-27 13:05:10,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:10,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:10,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 13:05:10,135 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:10,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:10,135 INFO L85 PathProgramCache]: Analyzing trace with hash 503896465, now seen corresponding path program 3 times [2023-08-27 13:05:10,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:10,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595606526] [2023-08-27 13:05:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:10,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:10,780 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 13:05:10,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:10,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595606526] [2023-08-27 13:05:10,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595606526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:10,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:10,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:10,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068338137] [2023-08-27 13:05:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:10,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:10,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:10,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:10,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 21 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:10,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:10,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:10,932 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2023-08-27 13:05:10,933 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-08-27 13:05:10,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 98 events. 32/98 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 304 event pairs, 2 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 306. Up to 46 conditions per place. [2023-08-27 13:05:10,933 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-08-27 13:05:10,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 256 flow [2023-08-27 13:05:10,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1310 transitions. [2023-08-27 13:05:10,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3713151927437642 [2023-08-27 13:05:10,938 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1310 transitions. [2023-08-27 13:05:10,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1310 transitions. [2023-08-27 13:05:10,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:10,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1310 transitions. [2023-08-27 13:05:10,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,946 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,946 INFO L175 Difference]: Start difference. First operand has 40 places, 21 transitions, 101 flow. Second operand 6 states and 1310 transitions. [2023-08-27 13:05:10,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 256 flow [2023-08-27 13:05:10,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 245 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 13:05:10,948 INFO L231 Difference]: Finished difference. Result has 44 places, 20 transitions, 108 flow [2023-08-27 13:05:10,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=44, PETRI_TRANSITIONS=20} [2023-08-27 13:05:10,949 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-08-27 13:05:10,949 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 20 transitions, 108 flow [2023-08-27 13:05:10,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:10,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:10,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:10,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 13:05:10,950 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:10,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 258595469, now seen corresponding path program 4 times [2023-08-27 13:05:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:10,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017574693] [2023-08-27 13:05:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:11,548 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 13:05:11,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017574693] [2023-08-27 13:05:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017574693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209674751] [2023-08-27 13:05:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:11,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:11,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:11,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 20 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:11,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:11,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:11,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:11,662 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2023-08-27 13:05:11,662 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 13:05:11,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 54 events. 16/54 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 196. Up to 20 conditions per place. [2023-08-27 13:05:11,663 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 18 selfloop transitions, 5 changer transitions 10/33 dead transitions. [2023-08-27 13:05:11,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 33 transitions, 205 flow [2023-08-27 13:05:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1299 transitions. [2023-08-27 13:05:11,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3681972789115646 [2023-08-27 13:05:11,667 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1299 transitions. [2023-08-27 13:05:11,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1299 transitions. [2023-08-27 13:05:11,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:11,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1299 transitions. [2023-08-27 13:05:11,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:11,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:11,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:11,695 INFO L175 Difference]: Start difference. First operand has 44 places, 20 transitions, 108 flow. Second operand 6 states and 1299 transitions. [2023-08-27 13:05:11,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 33 transitions, 205 flow [2023-08-27 13:05:11,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 184 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-27 13:05:11,698 INFO L231 Difference]: Finished difference. Result has 42 places, 18 transitions, 84 flow [2023-08-27 13:05:11,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=18} [2023-08-27 13:05:11,699 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-08-27 13:05:11,699 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 18 transitions, 84 flow [2023-08-27 13:05:11,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:11,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:11,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:11,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 13:05:11,700 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:11,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2136063727, now seen corresponding path program 5 times [2023-08-27 13:05:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:11,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356089796] [2023-08-27 13:05:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:11,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:12,337 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 13:05:12,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356089796] [2023-08-27 13:05:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356089796] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:12,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343450896] [2023-08-27 13:05:12,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:12,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:12,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:12,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 18 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:12,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:12,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:12,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:12,526 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-27 13:05:12,526 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-27 13:05:12,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 40 events. 8/40 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 136. Up to 19 conditions per place. [2023-08-27 13:05:12,527 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-27 13:05:12,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 180 flow [2023-08-27 13:05:12,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:12,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:12,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2023-08-27 13:05:12,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36763038548752835 [2023-08-27 13:05:12,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2023-08-27 13:05:12,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2023-08-27 13:05:12,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:12,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2023-08-27 13:05:12,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:12,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:12,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:12,547 INFO L175 Difference]: Start difference. First operand has 42 places, 18 transitions, 84 flow. Second operand 6 states and 1297 transitions. [2023-08-27 13:05:12,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 180 flow [2023-08-27 13:05:12,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 150 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 13:05:12,548 INFO L231 Difference]: Finished difference. Result has 39 places, 16 transitions, 62 flow [2023-08-27 13:05:12,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=62, PETRI_PLACES=39, PETRI_TRANSITIONS=16} [2023-08-27 13:05:12,557 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -5 predicate places. [2023-08-27 13:05:12,557 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 16 transitions, 62 flow [2023-08-27 13:05:12,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:12,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:05:12,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:12,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 13:05:12,558 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 13:05:12,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:05:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1737856613, now seen corresponding path program 6 times [2023-08-27 13:05:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:05:12,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106413152] [2023-08-27 13:05:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:05:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:05:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:05:13,127 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 13:05:13,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:05:13,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106413152] [2023-08-27 13:05:13,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106413152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:05:13,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:05:13,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:05:13,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807883838] [2023-08-27 13:05:13,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:05:13,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:05:13,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:05:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:05:13,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:05:13,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 13:05:13,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 16 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:13,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:05:13,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 13:05:13,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:05:13,215 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-27 13:05:13,216 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 13:05:13,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 68. Up to 8 conditions per place. [2023-08-27 13:05:13,216 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 13:05:13,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 18 transitions, 100 flow [2023-08-27 13:05:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:05:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:05:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1285 transitions. [2023-08-27 13:05:13,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36422902494331066 [2023-08-27 13:05:13,220 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1285 transitions. [2023-08-27 13:05:13,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1285 transitions. [2023-08-27 13:05:13,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:05:13,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1285 transitions. [2023-08-27 13:05:13,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.16666666666666) internal successors, (1285), 6 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:13,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:13,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:13,228 INFO L175 Difference]: Start difference. First operand has 39 places, 16 transitions, 62 flow. Second operand 6 states and 1285 transitions. [2023-08-27 13:05:13,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 18 transitions, 100 flow [2023-08-27 13:05:13,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 18 transitions, 88 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 13:05:13,229 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-27 13:05:13,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-27 13:05:13,230 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2023-08-27 13:05:13,230 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-27 13:05:13,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 13:05:13,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 40 remaining) [2023-08-27 13:05:13,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 40 remaining) [2023-08-27 13:05:13,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 40 remaining) [2023-08-27 13:05:13,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (21 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-08-27 13:05:13,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 40 remaining) [2023-08-27 13:05:13,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 40 remaining) [2023-08-27 13:05:13,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 40 remaining) [2023-08-27 13:05:13,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 13:05:13,238 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-08-27 13:05:13,242 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 13:05:13,242 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 13:05:13,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 01:05:13 BasicIcfg [2023-08-27 13:05:13,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 13:05:13,248 INFO L158 Benchmark]: Toolchain (without parser) took 21398.61ms. Allocated memory was 381.7MB in the beginning and 662.7MB in the end (delta: 281.0MB). Free memory was 358.2MB in the beginning and 404.3MB in the end (delta: -46.1MB). Peak memory consumption was 237.4MB. Max. memory is 16.0GB. [2023-08-27 13:05:13,248 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 381.7MB. Free memory is still 358.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 13:05:13,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.02ms. Allocated memory is still 381.7MB. Free memory was 357.7MB in the beginning and 346.6MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 13:05:13,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.58ms. Allocated memory is still 381.7MB. Free memory was 346.6MB in the beginning and 344.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 13:05:13,249 INFO L158 Benchmark]: Boogie Preprocessor took 46.20ms. Allocated memory is still 381.7MB. Free memory was 344.5MB in the beginning and 343.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 13:05:13,249 INFO L158 Benchmark]: RCFGBuilder took 622.82ms. Allocated memory is still 381.7MB. Free memory was 342.9MB in the beginning and 321.4MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 13:05:13,250 INFO L158 Benchmark]: TraceAbstraction took 20395.06ms. Allocated memory was 381.7MB in the beginning and 662.7MB in the end (delta: 281.0MB). Free memory was 320.5MB in the beginning and 404.3MB in the end (delta: -83.8MB). Peak memory consumption was 199.6MB. Max. memory is 16.0GB. [2023-08-27 13:05:13,251 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 381.7MB. Free memory is still 358.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 269.02ms. Allocated memory is still 381.7MB. Free memory was 357.7MB in the beginning and 346.6MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.58ms. Allocated memory is still 381.7MB. Free memory was 346.6MB in the beginning and 344.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.20ms. Allocated memory is still 381.7MB. Free memory was 344.5MB in the beginning and 343.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 622.82ms. Allocated memory is still 381.7MB. Free memory was 342.9MB in the beginning and 321.4MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 20395.06ms. Allocated memory was 381.7MB in the beginning and 662.7MB in the end (delta: 281.0MB). Free memory was 320.5MB in the beginning and 404.3MB in the end (delta: -83.8MB). Peak memory consumption was 199.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 239 PlacesBefore, 44 PlacesAfterwards, 248 TransitionsBefore, 34 TransitionsAfterwards, 22848 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 190 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 60 ConcurrentYvCompositions, 19 ChoiceCompositions, 326 TotalNumberOfCompositions, 22521 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22521, independent: 22521, independent conditional: 0, independent unconditional: 22521, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13769, independent: 13769, independent conditional: 0, independent unconditional: 13769, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22521, independent: 8752, independent conditional: 0, independent unconditional: 8752, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 13769, unknown conditional: 0, unknown unconditional: 13769] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 400 locations, 40 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: 20.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 0 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=9, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 13:05:13,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...