/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_68-pfscan_protected_loop_minimal_interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:41:48,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:41:48,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:41:48,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:41:48,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:41:48,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:41:48,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:41:48,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:41:48,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:41:48,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:41:48,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:41:48,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:41:48,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:41:48,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:41:48,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:41:48,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:41:48,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:41:48,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:41:49,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:41:49,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:41:49,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:41:49,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:41:49,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:41:49,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:41:49,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:41:49,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:41:49,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:41:49,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:41:49,020 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 11:41:49,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:41:49,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:41:49,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:41:49,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:41:49,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:41:49,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:41:49,053 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:41:49,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:41:49,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:41:49,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:41:49,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:41:49,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:41:49,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:41:49,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:41:49,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:41:49,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:41:49,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:41:49,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:41:49,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:41:49,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:41:49,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:41:49,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:41:49,270 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:41:49,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-09-16 11:41:49,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29063712/14ae0f6f71694d85928e41c63f433d8d/FLAGb1cc806ab [2022-09-16 11:41:49,703 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:41:49,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-09-16 11:41:49,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29063712/14ae0f6f71694d85928e41c63f433d8d/FLAGb1cc806ab [2022-09-16 11:41:50,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29063712/14ae0f6f71694d85928e41c63f433d8d [2022-09-16 11:41:50,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:41:50,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:41:50,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:41:50,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:41:50,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:41:50,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4419439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50, skipping insertion in model container [2022-09-16 11:41:50,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:41:50,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:41:50,302 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_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-09-16 11:41:50,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:41:50,455 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:41:50,472 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_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-09-16 11:41:50,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:41:50,539 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:41:50,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50 WrapperNode [2022-09-16 11:41:50,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:41:50,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:41:50,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:41:50,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:41:50,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,594 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 124 [2022-09-16 11:41:50,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:41:50,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:41:50,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:41:50,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:41:50,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:41:50,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:41:50,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:41:50,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:41:50,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (1/1) ... [2022-09-16 11:41:50,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:41:50,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:41:50,662 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 11:41:50,665 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 11:41:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:41:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-09-16 11:41:50,690 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:41:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:41:50,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:41:50,691 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 11:41:50,772 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:41:50,773 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:41:50,969 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:41:50,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:41:50,976 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 11:41:50,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:41:50 BoogieIcfgContainer [2022-09-16 11:41:50,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:41:50,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:41:50,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:41:50,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:41:50,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:41:50" (1/3) ... [2022-09-16 11:41:50,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42af1ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:41:50, skipping insertion in model container [2022-09-16 11:41:50,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:41:50" (2/3) ... [2022-09-16 11:41:50,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42af1ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:41:50, skipping insertion in model container [2022-09-16 11:41:50,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:41:50" (3/3) ... [2022-09-16 11:41:50,984 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-09-16 11:41:51,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:41:51,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:41:51,012 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:41:51,071 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:41:51,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 309 flow [2022-09-16 11:41:51,188 INFO L130 PetriNetUnfolder]: 10/151 cut-off events. [2022-09-16 11:41:51,188 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:41:51,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 151 events. 10/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 269 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2022-09-16 11:41:51,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 152 transitions, 309 flow [2022-09-16 11:41:51,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 151 transitions, 305 flow [2022-09-16 11:41:51,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:41:51,224 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;@3023b1a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:41:51,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-09-16 11:41:51,250 INFO L130 PetriNetUnfolder]: 3/97 cut-off events. [2022-09-16 11:41:51,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:41:51,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:51,251 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 11:41:51,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 776007129, now seen corresponding path program 1 times [2022-09-16 11:41:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:51,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371411980] [2022-09-16 11:41:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:51,566 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 11:41:51,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:51,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371411980] [2022-09-16 11:41:51,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371411980] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:51,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:51,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:41:51,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255619295] [2022-09-16 11:41:51,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:51,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:41:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:51,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:41:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:41:51,617 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-09-16 11:41:51,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 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 11:41:51,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:51,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-09-16 11:41:51,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:41:52,044 INFO L130 PetriNetUnfolder]: 239/1130 cut-off events. [2022-09-16 11:41:52,045 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:41:52,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1130 events. 239/1130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6918 event pairs, 65 based on Foata normal form. 98/1088 useless extension candidates. Maximal degree in co-relation 1526. Up to 238 conditions per place. [2022-09-16 11:41:52,054 INFO L137 encePairwiseOnDemand]: 134/152 looper letters, 84 selfloop transitions, 16 changer transitions 0/206 dead transitions. [2022-09-16 11:41:52,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 206 transitions, 615 flow [2022-09-16 11:41:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 11:41:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-16 11:41:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1238 transitions. [2022-09-16 11:41:52,069 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8144736842105263 [2022-09-16 11:41:52,070 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1238 transitions. [2022-09-16 11:41:52,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1238 transitions. [2022-09-16 11:41:52,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:41:52,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1238 transitions. [2022-09-16 11:41:52,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.8) internal successors, (1238), 10 states have internal predecessors, (1238), 0 states have call successors, (0), 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 11:41:52,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 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 11:41:52,088 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 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 11:41:52,089 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 305 flow. Second operand 10 states and 1238 transitions. [2022-09-16 11:41:52,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 206 transitions, 615 flow [2022-09-16 11:41:52,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 206 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:41:52,099 INFO L231 Difference]: Finished difference. Result has 155 places, 159 transitions, 409 flow [2022-09-16 11:41:52,101 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=409, PETRI_PLACES=155, PETRI_TRANSITIONS=159} [2022-09-16 11:41:52,104 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2022-09-16 11:41:52,105 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 159 transitions, 409 flow [2022-09-16 11:41:52,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 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 11:41:52,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:52,106 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 11:41:52,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:41:52,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:52,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:52,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1713582480, now seen corresponding path program 1 times [2022-09-16 11:41:52,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:52,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913313728] [2022-09-16 11:41:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:52,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:52,425 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 11:41:52,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:52,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913313728] [2022-09-16 11:41:52,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913313728] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:52,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:52,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-16 11:41:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685518364] [2022-09-16 11:41:52,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:52,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 11:41:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:52,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 11:41:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-09-16 11:41:52,432 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:41:52,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 159 transitions, 409 flow. Second operand has 16 states, 16 states have (on average 95.125) internal successors, (1522), 16 states have internal predecessors, (1522), 0 states have call successors, (0), 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 11:41:52,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:52,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:41:52,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:41:53,421 INFO L130 PetriNetUnfolder]: 558/2485 cut-off events. [2022-09-16 11:41:53,422 INFO L131 PetriNetUnfolder]: For 302/305 co-relation queries the response was YES. [2022-09-16 11:41:53,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 2485 events. 558/2485 cut-off events. For 302/305 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 17820 event pairs, 56 based on Foata normal form. 21/2271 useless extension candidates. Maximal degree in co-relation 3936. Up to 457 conditions per place. [2022-09-16 11:41:53,439 INFO L137 encePairwiseOnDemand]: 130/152 looper letters, 166 selfloop transitions, 44 changer transitions 0/300 dead transitions. [2022-09-16 11:41:53,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 300 transitions, 1212 flow [2022-09-16 11:41:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:41:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:41:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2139 transitions. [2022-09-16 11:41:53,451 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6701127819548872 [2022-09-16 11:41:53,451 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2139 transitions. [2022-09-16 11:41:53,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2139 transitions. [2022-09-16 11:41:53,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:41:53,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2139 transitions. [2022-09-16 11:41:53,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 101.85714285714286) internal successors, (2139), 21 states have internal predecessors, (2139), 0 states have call successors, (0), 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 11:41:53,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 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 11:41:53,461 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 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 11:41:53,462 INFO L175 Difference]: Start difference. First operand has 155 places, 159 transitions, 409 flow. Second operand 21 states and 2139 transitions. [2022-09-16 11:41:53,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 300 transitions, 1212 flow [2022-09-16 11:41:53,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 300 transitions, 1212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-09-16 11:41:53,470 INFO L231 Difference]: Finished difference. Result has 187 places, 193 transitions, 754 flow [2022-09-16 11:41:53,470 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=754, PETRI_PLACES=187, PETRI_TRANSITIONS=193} [2022-09-16 11:41:53,471 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 42 predicate places. [2022-09-16 11:41:53,471 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 193 transitions, 754 flow [2022-09-16 11:41:53,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 95.125) internal successors, (1522), 16 states have internal predecessors, (1522), 0 states have call successors, (0), 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 11:41:53,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:53,472 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] [2022-09-16 11:41:53,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:41:53,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1057699436, now seen corresponding path program 1 times [2022-09-16 11:41:53,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:53,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752002120] [2022-09-16 11:41:53,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:53,641 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 11:41:53,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752002120] [2022-09-16 11:41:53,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752002120] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:53,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:53,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-16 11:41:53,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966147743] [2022-09-16 11:41:53,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:53,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 11:41:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:53,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 11:41:53,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-09-16 11:41:53,644 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 152 [2022-09-16 11:41:53,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 193 transitions, 754 flow. Second operand has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 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 11:41:53,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:53,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 152 [2022-09-16 11:41:53,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:41:54,416 INFO L130 PetriNetUnfolder]: 533/2967 cut-off events. [2022-09-16 11:41:54,416 INFO L131 PetriNetUnfolder]: For 1814/1885 co-relation queries the response was YES. [2022-09-16 11:41:54,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5806 conditions, 2967 events. 533/2967 cut-off events. For 1814/1885 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 22252 event pairs, 134 based on Foata normal form. 64/2726 useless extension candidates. Maximal degree in co-relation 5781. Up to 762 conditions per place. [2022-09-16 11:41:54,441 INFO L137 encePairwiseOnDemand]: 137/152 looper letters, 124 selfloop transitions, 24 changer transitions 27/278 dead transitions. [2022-09-16 11:41:54,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 278 transitions, 1380 flow [2022-09-16 11:41:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:41:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:41:54,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2026 transitions. [2022-09-16 11:41:54,446 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6347117794486216 [2022-09-16 11:41:54,446 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2026 transitions. [2022-09-16 11:41:54,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2026 transitions. [2022-09-16 11:41:54,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:41:54,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2026 transitions. [2022-09-16 11:41:54,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.47619047619048) internal successors, (2026), 21 states have internal predecessors, (2026), 0 states have call successors, (0), 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 11:41:54,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 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 11:41:54,455 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 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 11:41:54,455 INFO L175 Difference]: Start difference. First operand has 187 places, 193 transitions, 754 flow. Second operand 21 states and 2026 transitions. [2022-09-16 11:41:54,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 278 transitions, 1380 flow [2022-09-16 11:41:54,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 278 transitions, 1354 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-09-16 11:41:54,477 INFO L231 Difference]: Finished difference. Result has 210 places, 195 transitions, 794 flow [2022-09-16 11:41:54,477 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=794, PETRI_PLACES=210, PETRI_TRANSITIONS=195} [2022-09-16 11:41:54,478 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 65 predicate places. [2022-09-16 11:41:54,479 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 195 transitions, 794 flow [2022-09-16 11:41:54,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 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 11:41:54,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:54,480 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] [2022-09-16 11:41:54,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:41:54,480 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1529392297, now seen corresponding path program 1 times [2022-09-16 11:41:54,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:54,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720127938] [2022-09-16 11:41:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:54,516 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 11:41:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:54,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720127938] [2022-09-16 11:41:54,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720127938] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:54,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:54,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:41:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009560575] [2022-09-16 11:41:54,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:54,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:41:54,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:54,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:41:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:41:54,518 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 152 [2022-09-16 11:41:54,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 195 transitions, 794 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 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 11:41:54,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:54,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 152 [2022-09-16 11:41:54,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:41:54,696 INFO L130 PetriNetUnfolder]: 104/1436 cut-off events. [2022-09-16 11:41:54,696 INFO L131 PetriNetUnfolder]: For 464/499 co-relation queries the response was YES. [2022-09-16 11:41:54,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 1436 events. 104/1436 cut-off events. For 464/499 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8938 event pairs, 2 based on Foata normal form. 9/1352 useless extension candidates. Maximal degree in co-relation 2328. Up to 135 conditions per place. [2022-09-16 11:41:54,712 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 15 selfloop transitions, 4 changer transitions 0/202 dead transitions. [2022-09-16 11:41:54,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 202 transitions, 846 flow [2022-09-16 11:41:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:41:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:41:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2022-09-16 11:41:54,715 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8960526315789473 [2022-09-16 11:41:54,715 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2022-09-16 11:41:54,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2022-09-16 11:41:54,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:41:54,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2022-09-16 11:41:54,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 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 11:41:54,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 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 11:41:54,718 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 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 11:41:54,718 INFO L175 Difference]: Start difference. First operand has 210 places, 195 transitions, 794 flow. Second operand 5 states and 681 transitions. [2022-09-16 11:41:54,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 202 transitions, 846 flow [2022-09-16 11:41:54,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 827 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-09-16 11:41:54,726 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 805 flow [2022-09-16 11:41:54,727 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=805, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-09-16 11:41:54,727 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 58 predicate places. [2022-09-16 11:41:54,727 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 805 flow [2022-09-16 11:41:54,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 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 11:41:54,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:54,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:41:54,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:41:54,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:54,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1386784249, now seen corresponding path program 1 times [2022-09-16 11:41:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:54,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662576030] [2022-09-16 11:41:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:54,843 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 11:41:54,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:54,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662576030] [2022-09-16 11:41:54,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662576030] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:54,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:54,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:41:54,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896607840] [2022-09-16 11:41:54,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:54,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:41:54,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:54,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:41:54,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:41:54,846 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:41:54,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 805 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:41:54,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:54,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:41:54,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:41:56,932 INFO L130 PetriNetUnfolder]: 2746/10326 cut-off events. [2022-09-16 11:41:56,933 INFO L131 PetriNetUnfolder]: For 8294/8475 co-relation queries the response was YES. [2022-09-16 11:41:56,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23397 conditions, 10326 events. 2746/10326 cut-off events. For 8294/8475 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 97728 event pairs, 365 based on Foata normal form. 150/10010 useless extension candidates. Maximal degree in co-relation 23306. Up to 1508 conditions per place. [2022-09-16 11:41:57,031 INFO L137 encePairwiseOnDemand]: 132/152 looper letters, 495 selfloop transitions, 161 changer transitions 0/760 dead transitions. [2022-09-16 11:41:57,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 760 transitions, 4783 flow [2022-09-16 11:41:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-16 11:41:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-09-16 11:41:57,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3815 transitions. [2022-09-16 11:41:57,039 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6971856725146199 [2022-09-16 11:41:57,039 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3815 transitions. [2022-09-16 11:41:57,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3815 transitions. [2022-09-16 11:41:57,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:41:57,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3815 transitions. [2022-09-16 11:41:57,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 105.97222222222223) internal successors, (3815), 36 states have internal predecessors, (3815), 0 states have call successors, (0), 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 11:41:57,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 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 11:41:57,057 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 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 11:41:57,057 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 805 flow. Second operand 36 states and 3815 transitions. [2022-09-16 11:41:57,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 760 transitions, 4783 flow [2022-09-16 11:41:57,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 760 transitions, 4781 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:41:57,091 INFO L231 Difference]: Finished difference. Result has 268 places, 374 transitions, 2573 flow [2022-09-16 11:41:57,092 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2573, PETRI_PLACES=268, PETRI_TRANSITIONS=374} [2022-09-16 11:41:57,092 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 123 predicate places. [2022-09-16 11:41:57,092 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 374 transitions, 2573 flow [2022-09-16 11:41:57,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:41:57,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:41:57,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:41:57,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:41:57,093 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:41:57,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:41:57,094 INFO L85 PathProgramCache]: Analyzing trace with hash 284602123, now seen corresponding path program 2 times [2022-09-16 11:41:57,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:41:57,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573446895] [2022-09-16 11:41:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:41:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:41:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:41:57,192 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 11:41:57,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:41:57,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573446895] [2022-09-16 11:41:57,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573446895] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:41:57,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:41:57,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:41:57,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948820550] [2022-09-16 11:41:57,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:41:57,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:41:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:41:57,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:41:57,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:41:57,194 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:41:57,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 374 transitions, 2573 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:41:57,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:41:57,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:41:57,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:00,283 INFO L130 PetriNetUnfolder]: 4039/15054 cut-off events. [2022-09-16 11:42:00,284 INFO L131 PetriNetUnfolder]: For 46587/46987 co-relation queries the response was YES. [2022-09-16 11:42:00,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45823 conditions, 15054 events. 4039/15054 cut-off events. For 46587/46987 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 155343 event pairs, 577 based on Foata normal form. 258/14925 useless extension candidates. Maximal degree in co-relation 45701. Up to 3376 conditions per place. [2022-09-16 11:42:00,465 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 562 selfloop transitions, 208 changer transitions 0/874 dead transitions. [2022-09-16 11:42:00,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 874 transitions, 8017 flow [2022-09-16 11:42:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 11:42:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-09-16 11:42:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2776 transitions. [2022-09-16 11:42:00,470 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7024291497975709 [2022-09-16 11:42:00,470 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2776 transitions. [2022-09-16 11:42:00,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2776 transitions. [2022-09-16 11:42:00,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:00,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2776 transitions. [2022-09-16 11:42:00,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 106.76923076923077) internal successors, (2776), 26 states have internal predecessors, (2776), 0 states have call successors, (0), 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 11:42:00,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 152.0) internal successors, (4104), 27 states have internal predecessors, (4104), 0 states have call successors, (0), 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 11:42:00,481 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 152.0) internal successors, (4104), 27 states have internal predecessors, (4104), 0 states have call successors, (0), 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 11:42:00,481 INFO L175 Difference]: Start difference. First operand has 268 places, 374 transitions, 2573 flow. Second operand 26 states and 2776 transitions. [2022-09-16 11:42:00,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 874 transitions, 8017 flow [2022-09-16 11:42:00,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 874 transitions, 7933 flow, removed 42 selfloop flow, removed 0 redundant places. [2022-09-16 11:42:00,785 INFO L231 Difference]: Finished difference. Result has 315 places, 537 transitions, 4987 flow [2022-09-16 11:42:00,786 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=2519, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4987, PETRI_PLACES=315, PETRI_TRANSITIONS=537} [2022-09-16 11:42:00,788 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 170 predicate places. [2022-09-16 11:42:00,788 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 537 transitions, 4987 flow [2022-09-16 11:42:00,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:00,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:00,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:00,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:42:00,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:42:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:00,790 INFO L85 PathProgramCache]: Analyzing trace with hash 622819631, now seen corresponding path program 3 times [2022-09-16 11:42:00,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:00,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297859992] [2022-09-16 11:42:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:00,916 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 11:42:00,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:00,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297859992] [2022-09-16 11:42:00,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297859992] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:00,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:00,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:42:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961050059] [2022-09-16 11:42:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:00,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:42:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:00,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:42:00,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:42:00,922 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:42:00,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 537 transitions, 4987 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:00,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:00,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:42:00,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:08,124 INFO L130 PetriNetUnfolder]: 7958/29387 cut-off events. [2022-09-16 11:42:08,125 INFO L131 PetriNetUnfolder]: For 175567/176584 co-relation queries the response was YES. [2022-09-16 11:42:08,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105883 conditions, 29387 events. 7958/29387 cut-off events. For 175567/176584 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 338102 event pairs, 1927 based on Foata normal form. 550/29064 useless extension candidates. Maximal degree in co-relation 105739. Up to 4239 conditions per place. [2022-09-16 11:42:08,731 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 826 selfloop transitions, 454 changer transitions 0/1384 dead transitions. [2022-09-16 11:42:08,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 1384 transitions, 16532 flow [2022-09-16 11:42:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-16 11:42:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-09-16 11:42:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3393 transitions. [2022-09-16 11:42:08,736 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6975740131578947 [2022-09-16 11:42:08,736 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3393 transitions. [2022-09-16 11:42:08,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3393 transitions. [2022-09-16 11:42:08,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:08,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3393 transitions. [2022-09-16 11:42:08,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 106.03125) internal successors, (3393), 32 states have internal predecessors, (3393), 0 states have call successors, (0), 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 11:42:08,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 152.0) internal successors, (5016), 33 states have internal predecessors, (5016), 0 states have call successors, (0), 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 11:42:08,758 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 152.0) internal successors, (5016), 33 states have internal predecessors, (5016), 0 states have call successors, (0), 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 11:42:08,759 INFO L175 Difference]: Start difference. First operand has 315 places, 537 transitions, 4987 flow. Second operand 32 states and 3393 transitions. [2022-09-16 11:42:08,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 1384 transitions, 16532 flow [2022-09-16 11:42:09,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1384 transitions, 15612 flow, removed 460 selfloop flow, removed 0 redundant places. [2022-09-16 11:42:09,999 INFO L231 Difference]: Finished difference. Result has 376 places, 900 transitions, 11111 flow [2022-09-16 11:42:10,000 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=4599, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=11111, PETRI_PLACES=376, PETRI_TRANSITIONS=900} [2022-09-16 11:42:10,000 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 231 predicate places. [2022-09-16 11:42:10,000 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 900 transitions, 11111 flow [2022-09-16 11:42:10,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:10,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:10,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:42:10,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:42:10,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash 162056005, now seen corresponding path program 4 times [2022-09-16 11:42:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058779171] [2022-09-16 11:42:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,102 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 11:42:10,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058779171] [2022-09-16 11:42:10,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058779171] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:42:10,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909803902] [2022-09-16 11:42:10,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:42:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:42:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:42:10,104 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:42:10,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 900 transitions, 11111 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:10,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:42:10,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:22,218 INFO L130 PetriNetUnfolder]: 10813/40382 cut-off events. [2022-09-16 11:42:22,218 INFO L131 PetriNetUnfolder]: For 387238/388763 co-relation queries the response was YES. [2022-09-16 11:42:23,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162082 conditions, 40382 events. 10813/40382 cut-off events. For 387238/388763 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 488303 event pairs, 2550 based on Foata normal form. 694/39883 useless extension candidates. Maximal degree in co-relation 161907. Up to 4801 conditions per place. [2022-09-16 11:42:23,530 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 1134 selfloop transitions, 559 changer transitions 0/1797 dead transitions. [2022-09-16 11:42:23,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1797 transitions, 25256 flow [2022-09-16 11:42:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 11:42:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-09-16 11:42:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2928 transitions. [2022-09-16 11:42:23,534 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7134502923976608 [2022-09-16 11:42:23,534 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2928 transitions. [2022-09-16 11:42:23,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2928 transitions. [2022-09-16 11:42:23,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:23,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2928 transitions. [2022-09-16 11:42:23,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 108.44444444444444) internal successors, (2928), 27 states have internal predecessors, (2928), 0 states have call successors, (0), 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 11:42:23,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 152.0) internal successors, (4256), 28 states have internal predecessors, (4256), 0 states have call successors, (0), 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 11:42:23,542 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 152.0) internal successors, (4256), 28 states have internal predecessors, (4256), 0 states have call successors, (0), 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 11:42:23,542 INFO L175 Difference]: Start difference. First operand has 376 places, 900 transitions, 11111 flow. Second operand 27 states and 2928 transitions. [2022-09-16 11:42:23,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1797 transitions, 25256 flow [2022-09-16 11:42:26,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1797 transitions, 24292 flow, removed 480 selfloop flow, removed 1 redundant places. [2022-09-16 11:42:26,805 INFO L231 Difference]: Finished difference. Result has 423 places, 1243 transitions, 18121 flow [2022-09-16 11:42:26,806 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=10397, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=18121, PETRI_PLACES=423, PETRI_TRANSITIONS=1243} [2022-09-16 11:42:26,807 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 278 predicate places. [2022-09-16 11:42:26,807 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 1243 transitions, 18121 flow [2022-09-16 11:42:26,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:26,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:26,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:26,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:42:26,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:42:26,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1222597959, now seen corresponding path program 5 times [2022-09-16 11:42:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:26,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531142601] [2022-09-16 11:42:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:26,891 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 11:42:26,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:26,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531142601] [2022-09-16 11:42:26,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531142601] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:26,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:26,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:42:26,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824629022] [2022-09-16 11:42:26,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:26,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:42:26,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:42:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:42:26,893 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:42:26,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 1243 transitions, 18121 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:26,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:26,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:42:26,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:42,816 INFO L130 PetriNetUnfolder]: 11626/42324 cut-off events. [2022-09-16 11:42:42,816 INFO L131 PetriNetUnfolder]: For 570726/572500 co-relation queries the response was YES. [2022-09-16 11:42:44,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186375 conditions, 42324 events. 11626/42324 cut-off events. For 570726/572500 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 513796 event pairs, 2974 based on Foata normal form. 834/41927 useless extension candidates. Maximal degree in co-relation 186178. Up to 9551 conditions per place. [2022-09-16 11:42:44,400 INFO L137 encePairwiseOnDemand]: 132/152 looper letters, 1186 selfloop transitions, 648 changer transitions 0/1938 dead transitions. [2022-09-16 11:42:44,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 1938 transitions, 30867 flow [2022-09-16 11:42:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-16 11:42:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-09-16 11:42:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3843 transitions. [2022-09-16 11:42:44,405 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7023026315789473 [2022-09-16 11:42:44,405 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3843 transitions. [2022-09-16 11:42:44,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3843 transitions. [2022-09-16 11:42:44,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:44,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3843 transitions. [2022-09-16 11:42:44,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 106.75) internal successors, (3843), 36 states have internal predecessors, (3843), 0 states have call successors, (0), 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 11:42:44,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 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 11:42:44,416 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 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 11:42:44,416 INFO L175 Difference]: Start difference. First operand has 423 places, 1243 transitions, 18121 flow. Second operand 36 states and 3843 transitions. [2022-09-16 11:42:44,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 1938 transitions, 30867 flow [2022-09-16 11:42:49,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 1938 transitions, 30224 flow, removed 315 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:49,999 INFO L231 Difference]: Finished difference. Result has 488 places, 1462 transitions, 24226 flow [2022-09-16 11:42:50,000 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=17478, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=24226, PETRI_PLACES=488, PETRI_TRANSITIONS=1462} [2022-09-16 11:42:50,000 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 343 predicate places. [2022-09-16 11:42:50,000 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 1462 transitions, 24226 flow [2022-09-16 11:42:50,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:50,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:50,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:50,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:42:50,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:42:50,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:50,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1860635103, now seen corresponding path program 6 times [2022-09-16 11:42:50,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:50,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003149443] [2022-09-16 11:42:50,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:50,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:50,111 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 11:42:50,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:50,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003149443] [2022-09-16 11:42:50,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003149443] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:50,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:50,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:42:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340798026] [2022-09-16 11:42:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:50,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:42:50,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:50,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:42:50,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:42:50,117 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:42:50,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 1462 transitions, 24226 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:42:50,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:50,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:42:50,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:43:19,118 INFO L130 PetriNetUnfolder]: 18494/69769 cut-off events. [2022-09-16 11:43:19,119 INFO L131 PetriNetUnfolder]: For 1329944/1332737 co-relation queries the response was YES. [2022-09-16 11:43:22,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329711 conditions, 69769 events. 18494/69769 cut-off events. For 1329944/1332737 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 926477 event pairs, 3284 based on Foata normal form. 1294/69116 useless extension candidates. Maximal degree in co-relation 329482. Up to 5784 conditions per place. [2022-09-16 11:43:22,273 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 1411 selfloop transitions, 1746 changer transitions 0/3261 dead transitions. [2022-09-16 11:43:22,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 3261 transitions, 62316 flow [2022-09-16 11:43:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 11:43:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-09-16 11:43:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3305 transitions. [2022-09-16 11:43:22,276 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7014006791171478 [2022-09-16 11:43:22,276 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3305 transitions. [2022-09-16 11:43:22,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3305 transitions. [2022-09-16 11:43:22,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:43:22,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3305 transitions. [2022-09-16 11:43:22,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 106.61290322580645) internal successors, (3305), 31 states have internal predecessors, (3305), 0 states have call successors, (0), 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 11:43:22,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 152.0) internal successors, (4864), 32 states have internal predecessors, (4864), 0 states have call successors, (0), 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 11:43:22,285 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 152.0) internal successors, (4864), 32 states have internal predecessors, (4864), 0 states have call successors, (0), 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 11:43:22,285 INFO L175 Difference]: Start difference. First operand has 488 places, 1462 transitions, 24226 flow. Second operand 31 states and 3305 transitions. [2022-09-16 11:43:22,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 3261 transitions, 62316 flow [2022-09-16 11:43:42,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 3261 transitions, 59211 flow, removed 1538 selfloop flow, removed 3 redundant places. [2022-09-16 11:43:42,787 INFO L231 Difference]: Finished difference. Result has 537 places, 2658 transitions, 52960 flow [2022-09-16 11:43:42,788 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=22977, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=550, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=52960, PETRI_PLACES=537, PETRI_TRANSITIONS=2658} [2022-09-16 11:43:42,789 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 392 predicate places. [2022-09-16 11:43:42,789 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 2658 transitions, 52960 flow [2022-09-16 11:43:42,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:43:42,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:43:42,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:43:42,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:43:42,789 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:43:42,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:43:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash -102661969, now seen corresponding path program 7 times [2022-09-16 11:43:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:43:42,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278086414] [2022-09-16 11:43:42,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:43:42,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:43:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:43:42,875 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 11:43:42,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:43:42,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278086414] [2022-09-16 11:43:42,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278086414] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:43:42,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:43:42,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:43:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446228715] [2022-09-16 11:43:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:43:42,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:43:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:43:42,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:43:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:43:42,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-09-16 11:43:42,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 2658 transitions, 52960 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 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 11:43:42,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:43:42,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-09-16 11:43:42,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand