/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:40:45,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:40:45,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:40:45,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:40:45,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:40:45,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:40:45,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:40:45,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:40:46,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:40:46,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:40:46,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:40:46,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:40:46,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:40:46,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:40:46,011 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:40:46,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:40:46,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:40:46,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:40:46,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:40:46,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:40:46,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:40:46,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:40:46,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:40:46,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:46,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:40:46,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:40:46,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:40:46,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:40:46,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:40:46,015 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:40:46,015 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:40:46,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:40:46,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:40:46,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:40:46,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:40:46,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:40:46,194 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:40:46,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-16 11:40:46,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5424c4f18/1f2678767ba7403b9def2172be7a0756/FLAG0402b17fe [2022-09-16 11:40:46,654 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:40:46,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-16 11:40:46,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5424c4f18/1f2678767ba7403b9def2172be7a0756/FLAG0402b17fe [2022-09-16 11:40:46,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5424c4f18/1f2678767ba7403b9def2172be7a0756 [2022-09-16 11:40:46,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:40:46,679 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:40:46,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:46,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:40:46,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:40:46,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:46" (1/1) ... [2022-09-16 11:40:46,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9081b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:46, skipping insertion in model container [2022-09-16 11:40:46,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:46" (1/1) ... [2022-09-16 11:40:46,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:40:46,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:40:46,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-16 11:40:46,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:46,968 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:40:46,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-16 11:40:47,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:47,026 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:40:47,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47 WrapperNode [2022-09-16 11:40:47,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:47,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:47,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:40:47,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:40:47,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,087 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 88 [2022-09-16 11:40:47,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:47,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:40:47,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:40:47,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:40:47,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:40:47,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:40:47,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:40:47,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:40:47,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (1/1) ... [2022-09-16 11:40:47,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:47,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:40:47,145 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) [2022-09-16 11:40:47,146 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 [2022-09-16 11:40:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:40:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:40:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:40:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:40:47,170 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:40:47,271 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:40:47,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:40:47,426 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:40:47,432 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:40:47,432 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:40:47,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:47 BoogieIcfgContainer [2022-09-16 11:40:47,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:40:47,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:40:47,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:40:47,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:40:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:40:46" (1/3) ... [2022-09-16 11:40:47,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac980c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:47, skipping insertion in model container [2022-09-16 11:40:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:47" (2/3) ... [2022-09-16 11:40:47,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac980c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:47, skipping insertion in model container [2022-09-16 11:40:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:47" (3/3) ... [2022-09-16 11:40:47,439 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2022-09-16 11:40:47,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:40:47,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:40:47,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:40:47,483 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:40:47,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 226 flow [2022-09-16 11:40:47,562 INFO L130 PetriNetUnfolder]: 4/108 cut-off events. [2022-09-16 11:40:47,562 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:47,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 4/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-09-16 11:40:47,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 109 transitions, 226 flow [2022-09-16 11:40:47,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 100 transitions, 203 flow [2022-09-16 11:40:47,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:40:47,590 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;@35bb6cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:40:47,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-16 11:40:47,607 INFO L130 PetriNetUnfolder]: 1/54 cut-off events. [2022-09-16 11:40:47,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:47,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:47,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:47,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:47,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:47,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1360838928, now seen corresponding path program 1 times [2022-09-16 11:40:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:47,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494029848] [2022-09-16 11:40:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:47,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494029848] [2022-09-16 11:40:47,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494029848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:47,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:47,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:47,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982702736] [2022-09-16 11:40:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:47,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:40:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:40:47,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:40:47,887 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2022-09-16 11:40:47,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 100 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:47,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:47,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2022-09-16 11:40:47,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,013 INFO L130 PetriNetUnfolder]: 45/284 cut-off events. [2022-09-16 11:40:48,013 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:48,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 284 events. 45/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1270 event pairs, 0 based on Foata normal form. 33/286 useless extension candidates. Maximal degree in co-relation 352. Up to 46 conditions per place. [2022-09-16 11:40:48,016 INFO L137 encePairwiseOnDemand]: 96/109 looper letters, 32 selfloop transitions, 10 changer transitions 6/118 dead transitions. [2022-09-16 11:40:48,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 118 transitions, 327 flow [2022-09-16 11:40:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:40:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:40:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2022-09-16 11:40:48,041 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8568807339449541 [2022-09-16 11:40:48,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2022-09-16 11:40:48,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2022-09-16 11:40:48,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2022-09-16 11:40:48,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,052 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,053 INFO L175 Difference]: Start difference. First operand has 100 places, 100 transitions, 203 flow. Second operand 5 states and 467 transitions. [2022-09-16 11:40:48,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 118 transitions, 327 flow [2022-09-16 11:40:48,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 118 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:48,058 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 254 flow [2022-09-16 11:40:48,059 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2022-09-16 11:40:48,061 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2022-09-16 11:40:48,062 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 254 flow [2022-09-16 11:40:48,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:40:48,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash 763666422, now seen corresponding path program 1 times [2022-09-16 11:40:48,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882380133] [2022-09-16 11:40:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:48,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:48,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:48,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882380133] [2022-09-16 11:40:48,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882380133] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:48,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:48,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:48,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165355813] [2022-09-16 11:40:48,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:48,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:40:48,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:48,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:40:48,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:40:48,113 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2022-09-16 11:40:48,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:48,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2022-09-16 11:40:48,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,212 INFO L130 PetriNetUnfolder]: 48/336 cut-off events. [2022-09-16 11:40:48,212 INFO L131 PetriNetUnfolder]: For 111/116 co-relation queries the response was YES. [2022-09-16 11:40:48,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 336 events. 48/336 cut-off events. For 111/116 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1718 event pairs, 14 based on Foata normal form. 8/312 useless extension candidates. Maximal degree in co-relation 531. Up to 68 conditions per place. [2022-09-16 11:40:48,216 INFO L137 encePairwiseOnDemand]: 101/109 looper letters, 32 selfloop transitions, 14 changer transitions 0/116 dead transitions. [2022-09-16 11:40:48,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 116 transitions, 424 flow [2022-09-16 11:40:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:40:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:40:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2022-09-16 11:40:48,222 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8220183486238533 [2022-09-16 11:40:48,222 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2022-09-16 11:40:48,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2022-09-16 11:40:48,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2022-09-16 11:40:48,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,227 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,227 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 254 flow. Second operand 5 states and 448 transitions. [2022-09-16 11:40:48,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 116 transitions, 424 flow [2022-09-16 11:40:48,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 116 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-09-16 11:40:48,234 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 363 flow [2022-09-16 11:40:48,234 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=363, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2022-09-16 11:40:48,234 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2022-09-16 11:40:48,235 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 363 flow [2022-09-16 11:40:48,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:40:48,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 393730175, now seen corresponding path program 1 times [2022-09-16 11:40:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173945545] [2022-09-16 11:40:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:48,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:48,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173945545] [2022-09-16 11:40:48,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173945545] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:48,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:48,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:48,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324519881] [2022-09-16 11:40:48,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:48,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:48,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:48,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:48,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:48,336 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 109 [2022-09-16 11:40:48,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:48,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 109 [2022-09-16 11:40:48,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,462 INFO L130 PetriNetUnfolder]: 71/367 cut-off events. [2022-09-16 11:40:48,463 INFO L131 PetriNetUnfolder]: For 312/328 co-relation queries the response was YES. [2022-09-16 11:40:48,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 367 events. 71/367 cut-off events. For 312/328 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1929 event pairs, 4 based on Foata normal form. 8/344 useless extension candidates. Maximal degree in co-relation 740. Up to 44 conditions per place. [2022-09-16 11:40:48,465 INFO L137 encePairwiseOnDemand]: 99/109 looper letters, 40 selfloop transitions, 28 changer transitions 4/138 dead transitions. [2022-09-16 11:40:48,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 138 transitions, 621 flow [2022-09-16 11:40:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 11:40:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-16 11:40:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 837 transitions. [2022-09-16 11:40:48,467 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7678899082568807 [2022-09-16 11:40:48,467 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 837 transitions. [2022-09-16 11:40:48,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 837 transitions. [2022-09-16 11:40:48,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 837 transitions. [2022-09-16 11:40:48,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.7) internal successors, (837), 10 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,471 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,471 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 363 flow. Second operand 10 states and 837 transitions. [2022-09-16 11:40:48,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 138 transitions, 621 flow [2022-09-16 11:40:48,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 138 transitions, 611 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-09-16 11:40:48,481 INFO L231 Difference]: Finished difference. Result has 119 places, 113 transitions, 506 flow [2022-09-16 11:40:48,482 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=506, PETRI_PLACES=119, PETRI_TRANSITIONS=113} [2022-09-16 11:40:48,483 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, 19 predicate places. [2022-09-16 11:40:48,483 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 113 transitions, 506 flow [2022-09-16 11:40:48,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:40:48,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash -679266213, now seen corresponding path program 1 times [2022-09-16 11:40:48,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673563933] [2022-09-16 11:40:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:48,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:48,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673563933] [2022-09-16 11:40:48,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673563933] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:48,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:48,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:48,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292896456] [2022-09-16 11:40:48,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:48,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:48,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:48,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:48,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:48,577 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 109 [2022-09-16 11:40:48,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 113 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:48,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 109 [2022-09-16 11:40:48,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,702 INFO L130 PetriNetUnfolder]: 60/365 cut-off events. [2022-09-16 11:40:48,702 INFO L131 PetriNetUnfolder]: For 536/548 co-relation queries the response was YES. [2022-09-16 11:40:48,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 365 events. 60/365 cut-off events. For 536/548 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1930 event pairs, 17 based on Foata normal form. 16/358 useless extension candidates. Maximal degree in co-relation 787. Up to 91 conditions per place. [2022-09-16 11:40:48,705 INFO L137 encePairwiseOnDemand]: 99/109 looper letters, 42 selfloop transitions, 15 changer transitions 11/133 dead transitions. [2022-09-16 11:40:48,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 706 flow [2022-09-16 11:40:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:40:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:40:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 746 transitions. [2022-09-16 11:40:48,707 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7604485219164119 [2022-09-16 11:40:48,707 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 746 transitions. [2022-09-16 11:40:48,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 746 transitions. [2022-09-16 11:40:48,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 746 transitions. [2022-09-16 11:40:48,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.88888888888889) internal successors, (746), 9 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,711 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,711 INFO L175 Difference]: Start difference. First operand has 119 places, 113 transitions, 506 flow. Second operand 9 states and 746 transitions. [2022-09-16 11:40:48,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 706 flow [2022-09-16 11:40:48,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 133 transitions, 655 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-09-16 11:40:48,717 INFO L231 Difference]: Finished difference. Result has 127 places, 110 transitions, 481 flow [2022-09-16 11:40:48,718 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=481, PETRI_PLACES=127, PETRI_TRANSITIONS=110} [2022-09-16 11:40:48,719 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, 27 predicate places. [2022-09-16 11:40:48,719 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 110 transitions, 481 flow [2022-09-16 11:40:48,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:40:48,722 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1305185682, now seen corresponding path program 1 times [2022-09-16 11:40:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389050413] [2022-09-16 11:40:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:48,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389050413] [2022-09-16 11:40:48,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389050413] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:48,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:48,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162574398] [2022-09-16 11:40:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:48,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:40:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:40:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:40:48,800 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2022-09-16 11:40:48,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 110 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:48,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2022-09-16 11:40:48,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,821 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2022-09-16 11:40:48,822 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-09-16 11:40:48,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 99 events. 0/99 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-09-16 11:40:48,822 INFO L137 encePairwiseOnDemand]: 106/109 looper letters, 7 selfloop transitions, 3 changer transitions 5/88 dead transitions. [2022-09-16 11:40:48,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 88 transitions, 295 flow [2022-09-16 11:40:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:40:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:40:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2022-09-16 11:40:48,824 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8532110091743119 [2022-09-16 11:40:48,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2022-09-16 11:40:48,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2022-09-16 11:40:48,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2022-09-16 11:40:48,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,825 INFO L175 Difference]: Start difference. First operand has 127 places, 110 transitions, 481 flow. Second operand 3 states and 279 transitions. [2022-09-16 11:40:48,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 88 transitions, 295 flow [2022-09-16 11:40:48,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 88 transitions, 239 flow, removed 8 selfloop flow, removed 19 redundant places. [2022-09-16 11:40:48,829 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 204 flow [2022-09-16 11:40:48,829 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2022-09-16 11:40:48,831 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2022-09-16 11:40:48,831 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 204 flow [2022-09-16 11:40:48,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:40:48,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1417960573, now seen corresponding path program 1 times [2022-09-16 11:40:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039266639] [2022-09-16 11:40:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:48,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:48,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039266639] [2022-09-16 11:40:48,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039266639] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:48,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:48,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372294480] [2022-09-16 11:40:48,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:48,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:48,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:48,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:48,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:48,908 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2022-09-16 11:40:48,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:48,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2022-09-16 11:40:48,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:48,961 INFO L130 PetriNetUnfolder]: 0/84 cut-off events. [2022-09-16 11:40:48,961 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-09-16 11:40:48,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 84 events. 0/84 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-09-16 11:40:48,961 INFO L137 encePairwiseOnDemand]: 103/109 looper letters, 13 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2022-09-16 11:40:48,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 82 transitions, 233 flow [2022-09-16 11:40:48,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 579 transitions. [2022-09-16 11:40:48,963 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7588466579292268 [2022-09-16 11:40:48,963 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 579 transitions. [2022-09-16 11:40:48,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 579 transitions. [2022-09-16 11:40:48,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:48,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 579 transitions. [2022-09-16 11:40:48,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,967 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 109.0) internal successors, (872), 8 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,967 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 204 flow. Second operand 7 states and 579 transitions. [2022-09-16 11:40:48,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 82 transitions, 233 flow [2022-09-16 11:40:48,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 82 transitions, 212 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:48,968 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 186 flow [2022-09-16 11:40:48,968 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2022-09-16 11:40:48,970 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2022-09-16 11:40:48,970 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 186 flow [2022-09-16 11:40:48,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:48,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:48,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:48,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:40:48,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:48,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:48,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1337075511, now seen corresponding path program 1 times [2022-09-16 11:40:48,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:48,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825982666] [2022-09-16 11:40:48,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:48,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:49,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:49,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825982666] [2022-09-16 11:40:49,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825982666] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:49,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:49,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:40:49,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949048336] [2022-09-16 11:40:49,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:49,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:40:49,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:49,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:40:49,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:40:49,045 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2022-09-16 11:40:49,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:49,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2022-09-16 11:40:49,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:49,080 INFO L130 PetriNetUnfolder]: 0/83 cut-off events. [2022-09-16 11:40:49,081 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:40:49,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 83 events. 0/83 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-09-16 11:40:49,081 INFO L137 encePairwiseOnDemand]: 102/109 looper letters, 11 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2022-09-16 11:40:49,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 81 transitions, 217 flow [2022-09-16 11:40:49,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:40:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:40:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 498 transitions. [2022-09-16 11:40:49,083 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7614678899082569 [2022-09-16 11:40:49,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 498 transitions. [2022-09-16 11:40:49,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 498 transitions. [2022-09-16 11:40:49,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:49,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 498 transitions. [2022-09-16 11:40:49,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,085 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,085 INFO L175 Difference]: Start difference. First operand has 97 places, 82 transitions, 186 flow. Second operand 6 states and 498 transitions. [2022-09-16 11:40:49,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 81 transitions, 217 flow [2022-09-16 11:40:49,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 81 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:40:49,087 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 188 flow [2022-09-16 11:40:49,087 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2022-09-16 11:40:49,088 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, -4 predicate places. [2022-09-16 11:40:49,088 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 188 flow [2022-09-16 11:40:49,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:49,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:49,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:40:49,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1345670958, now seen corresponding path program 1 times [2022-09-16 11:40:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:49,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028953792] [2022-09-16 11:40:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:49,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:49,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:49,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028953792] [2022-09-16 11:40:49,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028953792] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:49,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:49,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:40:49,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502504236] [2022-09-16 11:40:49,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:49,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:40:49,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:40:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:40:49,156 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 109 [2022-09-16 11:40:49,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 77.57142857142857) internal successors, (543), 7 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:49,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 109 [2022-09-16 11:40:49,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:49,213 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-09-16 11:40:49,214 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-09-16 11:40:49,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 82 events. 0/82 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-09-16 11:40:49,214 INFO L137 encePairwiseOnDemand]: 102/109 looper letters, 13 selfloop transitions, 6 changer transitions 0/80 dead transitions. [2022-09-16 11:40:49,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 80 transitions, 223 flow [2022-09-16 11:40:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:40:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:40:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 620 transitions. [2022-09-16 11:40:49,216 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7110091743119266 [2022-09-16 11:40:49,216 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 620 transitions. [2022-09-16 11:40:49,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 620 transitions. [2022-09-16 11:40:49,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:49,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 620 transitions. [2022-09-16 11:40:49,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.5) internal successors, (620), 8 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 109.0) internal successors, (981), 9 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,219 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 109.0) internal successors, (981), 9 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,219 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 188 flow. Second operand 8 states and 620 transitions. [2022-09-16 11:40:49,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 80 transitions, 223 flow [2022-09-16 11:40:49,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 80 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:40:49,220 INFO L231 Difference]: Finished difference. Result has 97 places, 80 transitions, 190 flow [2022-09-16 11:40:49,221 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=190, PETRI_PLACES=97, PETRI_TRANSITIONS=80} [2022-09-16 11:40:49,222 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2022-09-16 11:40:49,222 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 80 transitions, 190 flow [2022-09-16 11:40:49,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.57142857142857) internal successors, (543), 7 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:49,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:49,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:40:49,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1233873512, now seen corresponding path program 1 times [2022-09-16 11:40:49,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093236819] [2022-09-16 11:40:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:49,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:49,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093236819] [2022-09-16 11:40:49,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093236819] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:49,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:49,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:40:49,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882224250] [2022-09-16 11:40:49,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:49,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:40:49,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:49,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:40:49,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:40:49,272 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 109 [2022-09-16 11:40:49,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 80 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:49,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 109 [2022-09-16 11:40:49,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:49,319 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-09-16 11:40:49,319 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-09-16 11:40:49,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 81 events. 0/81 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-09-16 11:40:49,319 INFO L137 encePairwiseOnDemand]: 100/109 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2022-09-16 11:40:49,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 79 transitions, 223 flow [2022-09-16 11:40:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:40:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:40:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 694 transitions. [2022-09-16 11:40:49,321 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7074413863404689 [2022-09-16 11:40:49,321 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 694 transitions. [2022-09-16 11:40:49,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 694 transitions. [2022-09-16 11:40:49,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:49,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 694 transitions. [2022-09-16 11:40:49,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.11111111111111) internal successors, (694), 9 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,324 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,324 INFO L175 Difference]: Start difference. First operand has 97 places, 80 transitions, 190 flow. Second operand 9 states and 694 transitions. [2022-09-16 11:40:49,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 79 transitions, 223 flow [2022-09-16 11:40:49,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 79 transitions, 212 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:49,325 INFO L231 Difference]: Finished difference. Result has 97 places, 0 transitions, 0 flow [2022-09-16 11:40:49,325 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=97, PETRI_TRANSITIONS=0} [2022-09-16 11:40:49,326 INFO L287 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2022-09-16 11:40:49,326 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 0 transitions, 0 flow [2022-09-16 11:40:49,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:49,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-09-16 11:40:49,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-09-16 11:40:49,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-09-16 11:40:49,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-09-16 11:40:49,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-09-16 11:40:49,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:40:49,329 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:49,331 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:49,331 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:49,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:49 BasicIcfg [2022-09-16 11:40:49,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:49,334 INFO L158 Benchmark]: Toolchain (without parser) took 2655.57ms. Allocated memory was 192.9MB in the beginning and 241.2MB in the end (delta: 48.2MB). Free memory was 161.8MB in the beginning and 138.6MB in the end (delta: 23.2MB). Peak memory consumption was 71.4MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,335 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory was 150.3MB in the beginning and 150.2MB in the end (delta: 88.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:49,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.79ms. Allocated memory was 192.9MB in the beginning and 241.2MB in the end (delta: 48.2MB). Free memory was 161.6MB in the beginning and 203.0MB in the end (delta: -41.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.10ms. Allocated memory is still 241.2MB. Free memory was 203.0MB in the beginning and 200.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,335 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 241.2MB. Free memory was 200.9MB in the beginning and 199.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,335 INFO L158 Benchmark]: RCFGBuilder took 316.85ms. Allocated memory is still 241.2MB. Free memory was 199.6MB in the beginning and 185.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,336 INFO L158 Benchmark]: TraceAbstraction took 1899.00ms. Allocated memory is still 241.2MB. Free memory was 185.2MB in the beginning and 138.6MB in the end (delta: 46.6MB). Peak memory consumption was 47.3MB. Max. memory is 8.0GB. [2022-09-16 11:40:49,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory was 150.3MB in the beginning and 150.2MB in the end (delta: 88.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 346.79ms. Allocated memory was 192.9MB in the beginning and 241.2MB in the end (delta: 48.2MB). Free memory was 161.6MB in the beginning and 203.0MB in the end (delta: -41.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.10ms. Allocated memory is still 241.2MB. Free memory was 203.0MB in the beginning and 200.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 241.2MB. Free memory was 200.9MB in the beginning and 199.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 316.85ms. Allocated memory is still 241.2MB. Free memory was 199.6MB in the beginning and 185.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1899.00ms. Allocated memory is still 241.2MB. Free memory was 185.2MB in the beginning and 138.6MB in the end (delta: 46.6MB). Peak memory consumption was 47.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 134 locations, 5 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: 1.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 195 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 85 mSDtfsCounter, 405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=3, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:40:49,360 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...