/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:38:06,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:38:06,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 23:38:06,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:38:06,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:38:06,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:38:06,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:38:06,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:38:06,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:38:06,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:38:06,995 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:38:06,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:38:06,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:38:06,996 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:38:06,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:38:06,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:38:06,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:38:06,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:38:06,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:38:06,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:38:06,998 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:38:06,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:38:06,998 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:38:06,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:38:06,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:38:06,999 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:38:06,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:38:07,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:38:07,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:38:07,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:38:07,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:38:07,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:38:07,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:38:07,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:38:07,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:38:07,002 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:38:07,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:38:07,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:38:07,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:38:07,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:38:07,348 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:38:07,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-08-26 23:38:08,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:38:08,740 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:38:08,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2023-08-26 23:38:08,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02682dae/bca83612b0f341939f9f8bc336d5c2e9/FLAGa5773b8a6 [2023-08-26 23:38:08,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02682dae/bca83612b0f341939f9f8bc336d5c2e9 [2023-08-26 23:38:08,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:38:08,770 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:38:08,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:38:08,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:38:08,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:38:08,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:38:08" (1/1) ... [2023-08-26 23:38:08,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d70b78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:08, skipping insertion in model container [2023-08-26 23:38:08,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:38:08" (1/1) ... [2023-08-26 23:38:08,798 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:38:08,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:38:08,996 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:38:09,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:38:09,047 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:38:09,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09 WrapperNode [2023-08-26 23:38:09,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:38:09,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:38:09,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:38:09,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:38:09,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,104 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 250 [2023-08-26 23:38:09,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:38:09,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:38:09,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:38:09,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:38:09,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:38:09,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:38:09,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:38:09,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:38:09,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (1/1) ... [2023-08-26 23:38:09,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:38:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:38:09,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 23:38:09,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 23:38:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:38:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:38:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:38:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:38:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:38:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 23:38:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:38:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:38:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:38:09,213 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:38:09,324 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:38:09,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:38:09,782 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:38:09,796 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:38:09,797 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:38:09,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:38:09 BoogieIcfgContainer [2023-08-26 23:38:09,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:38:09,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:38:09,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:38:09,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:38:09,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:38:08" (1/3) ... [2023-08-26 23:38:09,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e5ba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:38:09, skipping insertion in model container [2023-08-26 23:38:09,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:38:09" (2/3) ... [2023-08-26 23:38:09,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e5ba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:38:09, skipping insertion in model container [2023-08-26 23:38:09,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:38:09" (3/3) ... [2023-08-26 23:38:09,809 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2023-08-26 23:38:09,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:38:09,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-26 23:38:09,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:38:09,952 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 23:38:09,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 307 transitions, 638 flow [2023-08-26 23:38:10,141 INFO L124 PetriNetUnfolderBase]: 26/304 cut-off events. [2023-08-26 23:38:10,142 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:38:10,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 304 events. 26/304 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 811 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-26 23:38:10,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 307 transitions, 638 flow [2023-08-26 23:38:10,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 293 transitions, 604 flow [2023-08-26 23:38:10,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:38:10,178 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 293 transitions, 604 flow [2023-08-26 23:38:10,180 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 293 transitions, 604 flow [2023-08-26 23:38:10,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 293 transitions, 604 flow [2023-08-26 23:38:10,252 INFO L124 PetriNetUnfolderBase]: 26/293 cut-off events. [2023-08-26 23:38:10,252 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:38:10,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 293 events. 26/293 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 816 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-26 23:38:10,271 INFO L119 LiptonReduction]: Number of co-enabled transitions 30888 [2023-08-26 23:38:25,202 INFO L134 LiptonReduction]: Checked pairs total: 31365 [2023-08-26 23:38:25,202 INFO L136 LiptonReduction]: Total number of compositions: 402 [2023-08-26 23:38:25,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:38:25,219 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;@617c597, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:38:25,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-26 23:38:25,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:38:25,222 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 23:38:25,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:25,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:25,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:38:25,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:25,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1332825, now seen corresponding path program 1 times [2023-08-26 23:38:25,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:25,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611902521] [2023-08-26 23:38:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:25,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:25,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611902521] [2023-08-26 23:38:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611902521] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:25,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:25,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871629760] [2023-08-26 23:38:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:25,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 23:38:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 23:38:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 23:38:25,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 709 [2023-08-26 23:38:25,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 293.5) internal successors, (587), 2 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:25,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:25,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 709 [2023-08-26 23:38:25,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:25,805 INFO L124 PetriNetUnfolderBase]: 1125/1728 cut-off events. [2023-08-26 23:38:25,805 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-26 23:38:25,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3590 conditions, 1728 events. 1125/1728 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 8145 event pairs, 1125 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 3104. Up to 1729 conditions per place. [2023-08-26 23:38:25,816 INFO L140 encePairwiseOnDemand]: 703/709 looper letters, 28 selfloop transitions, 0 changer transitions 0/28 dead transitions. [2023-08-26 23:38:25,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 130 flow [2023-08-26 23:38:25,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 23:38:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 23:38:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 618 transitions. [2023-08-26 23:38:25,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43582510578279265 [2023-08-26 23:38:25,829 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 618 transitions. [2023-08-26 23:38:25,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 618 transitions. [2023-08-26 23:38:25,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:25,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 618 transitions. [2023-08-26 23:38:25,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 309.0) internal successors, (618), 2 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:25,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:25,845 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:25,846 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 86 flow. Second operand 2 states and 618 transitions. [2023-08-26 23:38:25,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 130 flow [2023-08-26 23:38:25,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 23:38:25,854 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 62 flow [2023-08-26 23:38:25,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-08-26 23:38:25,859 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-26 23:38:25,859 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 62 flow [2023-08-26 23:38:25,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 293.5) internal successors, (587), 2 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:25,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:25,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:38:25,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:38:25,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:25,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1332824, now seen corresponding path program 1 times [2023-08-26 23:38:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:25,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461360071] [2023-08-26 23:38:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:25,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:25,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:25,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461360071] [2023-08-26 23:38:25,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461360071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:25,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:25,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:25,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080614736] [2023-08-26 23:38:25,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:26,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:26,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:26,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:26,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:26,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:26,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:26,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:26,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:26,268 INFO L124 PetriNetUnfolderBase]: 793/1236 cut-off events. [2023-08-26 23:38:26,269 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:26,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2511 conditions, 1236 events. 793/1236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 5428 event pairs, 793 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 2508. Up to 1236 conditions per place. [2023-08-26 23:38:26,274 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-26 23:38:26,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 110 flow [2023-08-26 23:38:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 892 transitions. [2023-08-26 23:38:26,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41937000470145747 [2023-08-26 23:38:26,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 892 transitions. [2023-08-26 23:38:26,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 892 transitions. [2023-08-26 23:38:26,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:26,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 892 transitions. [2023-08-26 23:38:26,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,287 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 62 flow. Second operand 3 states and 892 transitions. [2023-08-26 23:38:26,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 110 flow [2023-08-26 23:38:26,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 23:38:26,288 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 60 flow [2023-08-26 23:38:26,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=33, PETRI_TRANSITIONS=26} [2023-08-26 23:38:26,289 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-26 23:38:26,290 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 60 flow [2023-08-26 23:38:26,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:26,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:38:26,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:38:26,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:26,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:26,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1332859, now seen corresponding path program 1 times [2023-08-26 23:38:26,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:26,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396650679] [2023-08-26 23:38:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:26,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396650679] [2023-08-26 23:38:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396650679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:26,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:26,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:26,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137904912] [2023-08-26 23:38:26,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:26,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:26,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:26,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:26,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:26,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:26,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:26,650 INFO L124 PetriNetUnfolderBase]: 527/838 cut-off events. [2023-08-26 23:38:26,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:26,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 838 events. 527/838 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 3449 event pairs, 527 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1702. Up to 838 conditions per place. [2023-08-26 23:38:26,655 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-26 23:38:26,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 104 flow [2023-08-26 23:38:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:26,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:26,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 890 transitions. [2023-08-26 23:38:26,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41842971321109546 [2023-08-26 23:38:26,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 890 transitions. [2023-08-26 23:38:26,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 890 transitions. [2023-08-26 23:38:26,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:26,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 890 transitions. [2023-08-26 23:38:26,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,664 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 60 flow. Second operand 3 states and 890 transitions. [2023-08-26 23:38:26,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 104 flow [2023-08-26 23:38:26,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:26,666 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 57 flow [2023-08-26 23:38:26,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=32, PETRI_TRANSITIONS=24} [2023-08-26 23:38:26,667 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-08-26 23:38:26,667 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 57 flow [2023-08-26 23:38:26,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:26,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:38:26,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 23:38:26,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:26,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1332856, now seen corresponding path program 1 times [2023-08-26 23:38:26,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138942193] [2023-08-26 23:38:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:26,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:26,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138942193] [2023-08-26 23:38:26,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138942193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:26,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:26,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:26,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597983036] [2023-08-26 23:38:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:26,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:26,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:26,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:26,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:26,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:26,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:26,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:26,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:26,876 INFO L124 PetriNetUnfolderBase]: 315/518 cut-off events. [2023-08-26 23:38:26,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:26,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 518 events. 315/518 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1932 event pairs, 315 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 1054. Up to 518 conditions per place. [2023-08-26 23:38:26,878 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-26 23:38:26,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 97 flow [2023-08-26 23:38:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2023-08-26 23:38:26,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41748942172073344 [2023-08-26 23:38:26,881 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2023-08-26 23:38:26,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2023-08-26 23:38:26,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:26,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2023-08-26 23:38:26,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,889 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 57 flow. Second operand 3 states and 888 transitions. [2023-08-26 23:38:26,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 97 flow [2023-08-26 23:38:26,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:26,890 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 54 flow [2023-08-26 23:38:26,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, 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=31, PETRI_TRANSITIONS=22} [2023-08-26 23:38:26,892 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-26 23:38:26,892 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2023-08-26 23:38:26,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:26,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:38:26,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 23:38:26,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:26,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:26,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1332858, now seen corresponding path program 1 times [2023-08-26 23:38:26,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374375290] [2023-08-26 23:38:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:26,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:26,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374375290] [2023-08-26 23:38:26,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374375290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:26,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:26,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:26,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254350662] [2023-08-26 23:38:26,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:26,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:26,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:26,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:26,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:26,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:26,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:26,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:26,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:26,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:27,058 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-26 23:38:27,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:27,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 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 990 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 614. Up to 300 conditions per place. [2023-08-26 23:38:27,060 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-26 23:38:27,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 90 flow [2023-08-26 23:38:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2023-08-26 23:38:27,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41654913023037143 [2023-08-26 23:38:27,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 886 transitions. [2023-08-26 23:38:27,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 886 transitions. [2023-08-26 23:38:27,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:27,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 886 transitions. [2023-08-26 23:38:27,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,071 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 886 transitions. [2023-08-26 23:38:27,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 90 flow [2023-08-26 23:38:27,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:27,072 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 51 flow [2023-08-26 23:38:27,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=30, PETRI_TRANSITIONS=20} [2023-08-26 23:38:27,074 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-26 23:38:27,074 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 51 flow [2023-08-26 23:38:27,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:27,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:38:27,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:38:27,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:27,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1280780441, now seen corresponding path program 1 times [2023-08-26 23:38:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268826699] [2023-08-26 23:38:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:27,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:27,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268826699] [2023-08-26 23:38:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268826699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:27,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:27,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:27,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69928152] [2023-08-26 23:38:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:27,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:27,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:27,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:27,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:27,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:27,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:27,204 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-26 23:38:27,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:27,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 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 464 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 357. Up to 172 conditions per place. [2023-08-26 23:38:27,206 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-26 23:38:27,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 83 flow [2023-08-26 23:38:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 884 transitions. [2023-08-26 23:38:27,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4156088387400094 [2023-08-26 23:38:27,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 884 transitions. [2023-08-26 23:38:27,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 884 transitions. [2023-08-26 23:38:27,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:27,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 884 transitions. [2023-08-26 23:38:27,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,217 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 51 flow. Second operand 3 states and 884 transitions. [2023-08-26 23:38:27,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 83 flow [2023-08-26 23:38:27,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:27,219 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 48 flow [2023-08-26 23:38:27,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=29, PETRI_TRANSITIONS=18} [2023-08-26 23:38:27,221 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-26 23:38:27,221 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 48 flow [2023-08-26 23:38:27,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:27,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:38:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 23:38:27,222 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:27,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1280780383, now seen corresponding path program 1 times [2023-08-26 23:38:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:27,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623819477] [2023-08-26 23:38:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:27,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:27,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:27,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:27,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623819477] [2023-08-26 23:38:27,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623819477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:27,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:27,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:38:27,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999244748] [2023-08-26 23:38:27,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:27,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:38:27,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:27,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:38:27,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:38:27,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 709 [2023-08-26 23:38:27,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:27,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 709 [2023-08-26 23:38:27,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:27,331 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-26 23:38:27,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:38:27,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 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 149 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 172. Up to 80 conditions per place. [2023-08-26 23:38:27,332 INFO L140 encePairwiseOnDemand]: 706/709 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-26 23:38:27,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 16 transitions, 76 flow [2023-08-26 23:38:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:38:27,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:38:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 882 transitions. [2023-08-26 23:38:27,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146685472496474 [2023-08-26 23:38:27,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 882 transitions. [2023-08-26 23:38:27,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 882 transitions. [2023-08-26 23:38:27,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:27,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 882 transitions. [2023-08-26 23:38:27,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,341 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 48 flow. Second operand 3 states and 882 transitions. [2023-08-26 23:38:27,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 16 transitions, 76 flow [2023-08-26 23:38:27,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:27,342 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 45 flow [2023-08-26 23:38:27,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=28, PETRI_TRANSITIONS=16} [2023-08-26 23:38:27,343 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-26 23:38:27,343 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 45 flow [2023-08-26 23:38:27,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:27,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:27,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:27,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 23:38:27,344 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:27,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1146595271, now seen corresponding path program 1 times [2023-08-26 23:38:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055917880] [2023-08-26 23:38:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:27,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:30,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:30,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055917880] [2023-08-26 23:38:30,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055917880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:30,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:30,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165335490] [2023-08-26 23:38:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:30,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:30,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:30,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:30,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:30,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:30,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:31,370 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-26 23:38:31,371 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 23:38:31,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 106 events. 40/106 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 6 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 226. Up to 48 conditions per place. [2023-08-26 23:38:31,371 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 30 selfloop transitions, 6 changer transitions 9/45 dead transitions. [2023-08-26 23:38:31,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 45 transitions, 203 flow [2023-08-26 23:38:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1444 transitions. [2023-08-26 23:38:31,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33944522802068644 [2023-08-26 23:38:31,376 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1444 transitions. [2023-08-26 23:38:31,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1444 transitions. [2023-08-26 23:38:31,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:31,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1444 transitions. [2023-08-26 23:38:31,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.66666666666666) internal successors, (1444), 6 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:31,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:31,385 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:31,385 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 45 flow. Second operand 6 states and 1444 transitions. [2023-08-26 23:38:31,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 45 transitions, 203 flow [2023-08-26 23:38:31,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:31,386 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 77 flow [2023-08-26 23:38:31,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2023-08-26 23:38:31,387 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2023-08-26 23:38:31,387 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 77 flow [2023-08-26 23:38:31,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:31,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:31,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:31,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 23:38:31,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:31,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:31,388 INFO L85 PathProgramCache]: Analyzing trace with hash -145537541, now seen corresponding path program 2 times [2023-08-26 23:38:31,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:31,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37638606] [2023-08-26 23:38:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:31,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:33,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:33,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37638606] [2023-08-26 23:38:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37638606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:33,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:33,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:33,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544872972] [2023-08-26 23:38:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:33,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:33,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:33,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:33,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:33,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:33,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:33,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:34,228 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-26 23:38:34,229 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-08-26 23:38:34,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 114 events. 36/114 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 403 event pairs, 4 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 318. Up to 62 conditions per place. [2023-08-26 23:38:34,229 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 28 selfloop transitions, 5 changer transitions 10/43 dead transitions. [2023-08-26 23:38:34,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 227 flow [2023-08-26 23:38:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1442 transitions. [2023-08-26 23:38:34,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3389750822755054 [2023-08-26 23:38:34,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1442 transitions. [2023-08-26 23:38:34,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1442 transitions. [2023-08-26 23:38:34,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:34,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1442 transitions. [2023-08-26 23:38:34,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:34,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:34,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:34,243 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 77 flow. Second operand 6 states and 1442 transitions. [2023-08-26 23:38:34,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 227 flow [2023-08-26 23:38:34,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 223 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 23:38:34,246 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 95 flow [2023-08-26 23:38:34,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-26 23:38:34,247 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-26 23:38:34,247 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 95 flow [2023-08-26 23:38:34,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:34,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:34,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:34,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 23:38:34,248 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:34,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:34,248 INFO L85 PathProgramCache]: Analyzing trace with hash 363440427, now seen corresponding path program 3 times [2023-08-26 23:38:34,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:34,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6374387] [2023-08-26 23:38:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:34,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:36,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:36,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6374387] [2023-08-26 23:38:36,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6374387] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:36,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:36,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:36,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854857899] [2023-08-26 23:38:36,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:36,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:36,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:36,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:36,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:36,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:36,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:36,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:36,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:37,286 INFO L124 PetriNetUnfolderBase]: 20/70 cut-off events. [2023-08-26 23:38:37,286 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-08-26 23:38:37,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 70 events. 20/70 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 229. Up to 23 conditions per place. [2023-08-26 23:38:37,287 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2023-08-26 23:38:37,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 239 flow [2023-08-26 23:38:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1440 transitions. [2023-08-26 23:38:37,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3385049365303244 [2023-08-26 23:38:37,291 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1440 transitions. [2023-08-26 23:38:37,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1440 transitions. [2023-08-26 23:38:37,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:37,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1440 transitions. [2023-08-26 23:38:37,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:37,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:37,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:37,300 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 95 flow. Second operand 6 states and 1440 transitions. [2023-08-26 23:38:37,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 239 flow [2023-08-26 23:38:37,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 217 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-26 23:38:37,302 INFO L231 Difference]: Finished difference. Result has 42 places, 20 transitions, 97 flow [2023-08-26 23:38:37,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=42, PETRI_TRANSITIONS=20} [2023-08-26 23:38:37,302 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-08-26 23:38:37,302 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 20 transitions, 97 flow [2023-08-26 23:38:37,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:37,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:37,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:37,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 23:38:37,303 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:37,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1891135771, now seen corresponding path program 4 times [2023-08-26 23:38:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:37,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850166035] [2023-08-26 23:38:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:37,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:39,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:39,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850166035] [2023-08-26 23:38:39,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850166035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:39,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:39,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:39,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675512881] [2023-08-26 23:38:39,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:39,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:39,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:39,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:39,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:39,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:39,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 20 transitions, 97 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:39,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:39,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:39,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:39,784 INFO L124 PetriNetUnfolderBase]: 15/67 cut-off events. [2023-08-26 23:38:39,784 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-08-26 23:38:39,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 67 events. 15/67 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 177 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 221. Up to 41 conditions per place. [2023-08-26 23:38:39,785 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 18 selfloop transitions, 4 changer transitions 12/34 dead transitions. [2023-08-26 23:38:39,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 205 flow [2023-08-26 23:38:39,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2023-08-26 23:38:39,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33662435354960035 [2023-08-26 23:38:39,790 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1432 transitions. [2023-08-26 23:38:39,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1432 transitions. [2023-08-26 23:38:39,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:39,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1432 transitions. [2023-08-26 23:38:39,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:39,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:39,798 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:39,798 INFO L175 Difference]: Start difference. First operand has 42 places, 20 transitions, 97 flow. Second operand 6 states and 1432 transitions. [2023-08-26 23:38:39,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 205 flow [2023-08-26 23:38:39,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 200 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 23:38:39,800 INFO L231 Difference]: Finished difference. Result has 45 places, 18 transitions, 91 flow [2023-08-26 23:38:39,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=91, PETRI_PLACES=45, PETRI_TRANSITIONS=18} [2023-08-26 23:38:39,801 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2023-08-26 23:38:39,801 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 18 transitions, 91 flow [2023-08-26 23:38:39,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:39,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:39,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:39,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 23:38:39,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:39,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash 574978467, now seen corresponding path program 5 times [2023-08-26 23:38:39,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:39,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746436583] [2023-08-26 23:38:39,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:42,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:42,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746436583] [2023-08-26 23:38:42,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746436583] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:42,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:42,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:42,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909019667] [2023-08-26 23:38:42,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:42,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:42,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:42,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 18 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:42,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:42,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:42,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:42,759 INFO L124 PetriNetUnfolderBase]: 7/37 cut-off events. [2023-08-26 23:38:42,759 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-26 23:38:42,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 37 events. 7/37 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 128. Up to 14 conditions per place. [2023-08-26 23:38:42,760 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 17 selfloop transitions, 3 changer transitions 8/28 dead transitions. [2023-08-26 23:38:42,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 28 transitions, 171 flow [2023-08-26 23:38:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1426 transitions. [2023-08-26 23:38:42,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33521391631405734 [2023-08-26 23:38:42,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1426 transitions. [2023-08-26 23:38:42,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1426 transitions. [2023-08-26 23:38:42,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:42,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1426 transitions. [2023-08-26 23:38:42,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.66666666666666) internal successors, (1426), 6 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:42,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:42,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:42,773 INFO L175 Difference]: Start difference. First operand has 45 places, 18 transitions, 91 flow. Second operand 6 states and 1426 transitions. [2023-08-26 23:38:42,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 28 transitions, 171 flow [2023-08-26 23:38:42,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 152 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-26 23:38:42,774 INFO L231 Difference]: Finished difference. Result has 41 places, 16 transitions, 65 flow [2023-08-26 23:38:42,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=65, PETRI_PLACES=41, PETRI_TRANSITIONS=16} [2023-08-26 23:38:42,775 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-26 23:38:42,775 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 16 transitions, 65 flow [2023-08-26 23:38:42,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:42,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:38:42,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:42,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 23:38:42,776 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-26 23:38:42,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:38:42,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2088569953, now seen corresponding path program 6 times [2023-08-26 23:38:42,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:38:42,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472987894] [2023-08-26 23:38:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:38:42,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:38:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:38:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:38:45,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:38:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472987894] [2023-08-26 23:38:45,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472987894] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:38:45,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:38:45,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 23:38:45,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195684466] [2023-08-26 23:38:45,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:38:45,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 23:38:45,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:38:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 23:38:45,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 23:38:45,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 709 [2023-08-26 23:38:45,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 16 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:45,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:38:45,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 709 [2023-08-26 23:38:45,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:38:45,330 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-08-26 23:38:45,330 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 23:38:45,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 25 events. 5/25 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2023-08-26 23:38:45,330 INFO L140 encePairwiseOnDemand]: 704/709 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-26 23:38:45,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 112 flow [2023-08-26 23:38:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:38:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:38:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1419 transitions. [2023-08-26 23:38:45,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3335684062059238 [2023-08-26 23:38:45,335 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1419 transitions. [2023-08-26 23:38:45,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1419 transitions. [2023-08-26 23:38:45,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:38:45,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1419 transitions. [2023-08-26 23:38:45,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:45,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:45,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:45,343 INFO L175 Difference]: Start difference. First operand has 41 places, 16 transitions, 65 flow. Second operand 6 states and 1419 transitions. [2023-08-26 23:38:45,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 112 flow [2023-08-26 23:38:45,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 20 transitions, 99 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-26 23:38:45,344 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-26 23:38:45,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=37, PETRI_TRANSITIONS=0} [2023-08-26 23:38:45,344 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -7 predicate places. [2023-08-26 23:38:45,345 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-26 23:38:45,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:38:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 40 remaining) [2023-08-26 23:38:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (21 of 40 remaining) [2023-08-26 23:38:45,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 40 remaining) [2023-08-26 23:38:45,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 40 remaining) [2023-08-26 23:38:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 40 remaining) [2023-08-26 23:38:45,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 23:38:45,352 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:38:45,356 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:38:45,356 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:38:45,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:38:45 BasicIcfg [2023-08-26 23:38:45,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:38:45,359 INFO L158 Benchmark]: Toolchain (without parser) took 36588.80ms. Allocated memory was 358.6MB in the beginning and 1.2GB in the end (delta: 803.2MB). Free memory was 315.5MB in the beginning and 806.3MB in the end (delta: -490.8MB). Peak memory consumption was 316.6MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,359 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory was 336.3MB in the beginning and 336.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:38:45,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.90ms. Allocated memory is still 358.6MB. Free memory was 314.5MB in the beginning and 304.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.50ms. Allocated memory is still 358.6MB. Free memory was 302.9MB in the beginning and 300.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,360 INFO L158 Benchmark]: Boogie Preprocessor took 33.53ms. Allocated memory is still 358.6MB. Free memory was 300.8MB in the beginning and 299.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,360 INFO L158 Benchmark]: RCFGBuilder took 657.59ms. Allocated memory is still 358.6MB. Free memory was 298.7MB in the beginning and 274.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,360 INFO L158 Benchmark]: TraceAbstraction took 35554.54ms. Allocated memory was 358.6MB in the beginning and 1.2GB in the end (delta: 803.2MB). Free memory was 273.6MB in the beginning and 806.3MB in the end (delta: -532.7MB). Peak memory consumption was 274.7MB. Max. memory is 16.0GB. [2023-08-26 23:38:45,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory was 336.3MB in the beginning and 336.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 280.90ms. Allocated memory is still 358.6MB. Free memory was 314.5MB in the beginning and 304.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.50ms. Allocated memory is still 358.6MB. Free memory was 302.9MB in the beginning and 300.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.53ms. Allocated memory is still 358.6MB. Free memory was 300.8MB in the beginning and 299.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 657.59ms. Allocated memory is still 358.6MB. Free memory was 298.7MB in the beginning and 274.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 35554.54ms. Allocated memory was 358.6MB in the beginning and 1.2GB in the end (delta: 803.2MB). Free memory was 273.6MB in the beginning and 806.3MB in the end (delta: -532.7MB). Peak memory consumption was 274.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0s, 277 PlacesBefore, 44 PlacesAfterwards, 293 TransitionsBefore, 34 TransitionsAfterwards, 30888 CoEnabledTransitionPairs, 8 FixpointIterations, 67 TrivialSequentialCompositions, 224 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 78 ConcurrentYvCompositions, 26 ChoiceCompositions, 402 TotalNumberOfCompositions, 31365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31365, independent: 31365, independent conditional: 0, independent unconditional: 31365, 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: 19014, independent: 19014, independent conditional: 0, independent unconditional: 19014, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31365, independent: 12351, independent conditional: 0, independent unconditional: 12351, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 19014, unknown conditional: 0, unknown unconditional: 19014] , 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: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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, 462 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: 35.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 285 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=10, InterpolantAutomatonStates: 56, 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, 0.5s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5983 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2023-08-26 23:38:45,383 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...