/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 00:31:34,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 00:31:34,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 00:31:34,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 00:31:34,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 00:31:34,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 00:31:34,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 00:31:34,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 00:31:34,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 00:31:34,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 00:31:34,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 00:31:34,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 00:31:34,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 00:31:34,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 00:31:34,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 00:31:34,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 00:31:34,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 00:31:34,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 00:31:34,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 00:31:34,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 00:31:34,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 00:31:34,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 00:31:34,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 00:31:34,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 00:31:34,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 00:31:34,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 00:31:34,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 00:31:34,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 00:31:34,680 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 [2022-01-19 00:31:34,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 00:31:34,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 00:31:34,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 00:31:34,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 00:31:34,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 00:31:34,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 00:31:34,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 00:31:34,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 00:31:34,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 00:31:34,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 00:31:34,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 00:31:34,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 00:31:34,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 00:31:34,702 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 00:31:34,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 00:31:34,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 00:31:34,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 00:31:34,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 00:31:34,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 00:31:34,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 00:31:34,910 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 00:31:34,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-01-19 00:31:34,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8b1f175/3c9ab615c0974949b39ab2dd6d0f2d80/FLAG53fbf2a46 [2022-01-19 00:31:35,337 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 00:31:35,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-01-19 00:31:35,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8b1f175/3c9ab615c0974949b39ab2dd6d0f2d80/FLAG53fbf2a46 [2022-01-19 00:31:35,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8b1f175/3c9ab615c0974949b39ab2dd6d0f2d80 [2022-01-19 00:31:35,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 00:31:35,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 00:31:35,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 00:31:35,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 00:31:35,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 00:31:35,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56baa83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35, skipping insertion in model container [2022-01-19 00:31:35,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 00:31:35,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 00:31:35,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2022-01-19 00:31:35,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 00:31:35,620 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 00:31:35,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2022-01-19 00:31:35,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 00:31:35,674 INFO L208 MainTranslator]: Completed translation [2022-01-19 00:31:35,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35 WrapperNode [2022-01-19 00:31:35,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 00:31:35,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 00:31:35,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 00:31:35,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 00:31:35,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,723 INFO L137 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 202 [2022-01-19 00:31:35,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 00:31:35,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 00:31:35,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 00:31:35,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 00:31:35,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 00:31:35,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 00:31:35,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 00:31:35,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 00:31:35,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (1/1) ... [2022-01-19 00:31:35,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 00:31:35,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:31:35,800 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) [2022-01-19 00:31:35,824 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 [2022-01-19 00:31:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 00:31:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 00:31:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 00:31:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 00:31:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 00:31:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 00:31:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 00:31:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 00:31:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 00:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 00:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 00:31:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 00:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 00:31:35,847 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 00:31:35,950 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 00:31:35,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 00:31:36,256 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 00:31:36,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 00:31:36,267 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 00:31:36,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:31:36 BoogieIcfgContainer [2022-01-19 00:31:36,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 00:31:36,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 00:31:36,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 00:31:36,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 00:31:36,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:31:35" (1/3) ... [2022-01-19 00:31:36,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a21a9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:31:36, skipping insertion in model container [2022-01-19 00:31:36,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:31:35" (2/3) ... [2022-01-19 00:31:36,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a21a9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:31:36, skipping insertion in model container [2022-01-19 00:31:36,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:31:36" (3/3) ... [2022-01-19 00:31:36,281 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2022-01-19 00:31:36,285 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 00:31:36,286 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 00:31:36,286 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 00:31:36,362 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,363 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,363 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,363 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,363 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,363 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,364 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,365 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,369 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,370 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,377 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,377 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,377 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,377 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,377 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,378 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,381 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,381 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,381 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,381 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,381 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,385 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,386 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,387 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,389 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,390 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,391 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,392 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,393 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,404 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,404 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,404 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,405 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,405 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,405 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,405 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,405 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,414 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,417 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,417 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 00:31:36,420 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 00:31:36,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 00:31:36,466 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 00:31:36,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 00:31:36,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 272 transitions, 560 flow [2022-01-19 00:31:36,567 INFO L129 PetriNetUnfolder]: 23/270 cut-off events. [2022-01-19 00:31:36,568 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 00:31:36,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 23/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 322 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 171. Up to 2 conditions per place. [2022-01-19 00:31:36,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 272 transitions, 560 flow [2022-01-19 00:31:36,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 261 transitions, 534 flow [2022-01-19 00:31:36,640 INFO L129 PetriNetUnfolder]: 23/260 cut-off events. [2022-01-19 00:31:36,640 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 00:31:36,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:36,641 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:36,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2101951027, now seen corresponding path program 1 times [2022-01-19 00:31:36,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:36,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582250003] [2022-01-19 00:31:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:36,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:31:36,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:36,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582250003] [2022-01-19 00:31:36,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582250003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:36,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:36,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 00:31:36,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214029061] [2022-01-19 00:31:36,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:36,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 00:31:36,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 00:31:36,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 00:31:36,969 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 272 [2022-01-19 00:31:36,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 261 transitions, 534 flow. Second operand has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:36,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:36,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 272 [2022-01-19 00:31:36,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:37,029 INFO L129 PetriNetUnfolder]: 6/244 cut-off events. [2022-01-19 00:31:37,029 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-01-19 00:31:37,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 244 events. 6/244 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 308 event pairs, 0 based on Foata normal form. 20/245 useless extension candidates. Maximal degree in co-relation 162. Up to 5 conditions per place. [2022-01-19 00:31:37,033 INFO L132 encePairwiseOnDemand]: 255/272 looper letters, 4 selfloop transitions, 0 changer transitions 7/244 dead transitions. [2022-01-19 00:31:37,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 244 transitions, 508 flow [2022-01-19 00:31:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 00:31:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 00:31:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 521 transitions. [2022-01-19 00:31:37,047 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9577205882352942 [2022-01-19 00:31:37,047 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 521 transitions. [2022-01-19 00:31:37,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 521 transitions. [2022-01-19 00:31:37,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:37,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 521 transitions. [2022-01-19 00:31:37,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,062 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,064 INFO L186 Difference]: Start difference. First operand has 245 places, 261 transitions, 534 flow. Second operand 2 states and 521 transitions. [2022-01-19 00:31:37,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 244 transitions, 508 flow [2022-01-19 00:31:37,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 244 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 00:31:37,073 INFO L242 Difference]: Finished difference. Result has 242 places, 237 transitions, 478 flow [2022-01-19 00:31:37,080 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=478, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-01-19 00:31:37,083 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2022-01-19 00:31:37,083 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 478 flow [2022-01-19 00:31:37,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,084 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:37,084 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:37,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 00:31:37,085 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1774321134, now seen corresponding path program 1 times [2022-01-19 00:31:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:37,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493937050] [2022-01-19 00:31:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:37,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:31:37,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:37,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493937050] [2022-01-19 00:31:37,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493937050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:37,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:37,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 00:31:37,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026221759] [2022-01-19 00:31:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:37,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 00:31:37,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 00:31:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 00:31:37,222 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 272 [2022-01-19 00:31:37,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 478 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:37,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 272 [2022-01-19 00:31:37,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:37,385 INFO L129 PetriNetUnfolder]: 32/666 cut-off events. [2022-01-19 00:31:37,385 INFO L130 PetriNetUnfolder]: For 6/21 co-relation queries the response was YES. [2022-01-19 00:31:37,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 666 events. 32/666 cut-off events. For 6/21 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2728 event pairs, 9 based on Foata normal form. 2/625 useless extension candidates. Maximal degree in co-relation 750. Up to 34 conditions per place. [2022-01-19 00:31:37,393 INFO L132 encePairwiseOnDemand]: 267/272 looper letters, 26 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2022-01-19 00:31:37,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 252 transitions, 575 flow [2022-01-19 00:31:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:31:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:31:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1226 transitions. [2022-01-19 00:31:37,401 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9014705882352941 [2022-01-19 00:31:37,401 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1226 transitions. [2022-01-19 00:31:37,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1226 transitions. [2022-01-19 00:31:37,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:37,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1226 transitions. [2022-01-19 00:31:37,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 245.2) internal successors, (1226), 5 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,413 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,413 INFO L186 Difference]: Start difference. First operand has 242 places, 237 transitions, 478 flow. Second operand 5 states and 1226 transitions. [2022-01-19 00:31:37,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 252 transitions, 575 flow [2022-01-19 00:31:37,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 252 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 00:31:37,427 INFO L242 Difference]: Finished difference. Result has 242 places, 240 transitions, 507 flow [2022-01-19 00:31:37,428 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=507, PETRI_PLACES=242, PETRI_TRANSITIONS=240} [2022-01-19 00:31:37,429 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2022-01-19 00:31:37,429 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 240 transitions, 507 flow [2022-01-19 00:31:37,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,430 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:37,430 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:37,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 00:31:37,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash -588087070, now seen corresponding path program 1 times [2022-01-19 00:31:37,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:37,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435161332] [2022-01-19 00:31:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:37,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 00:31:37,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:37,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435161332] [2022-01-19 00:31:37,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435161332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:37,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:37,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 00:31:37,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538863299] [2022-01-19 00:31:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:37,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 00:31:37,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 00:31:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-19 00:31:37,635 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 272 [2022-01-19 00:31:37,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 240 transitions, 507 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:37,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 272 [2022-01-19 00:31:37,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:37,793 INFO L129 PetriNetUnfolder]: 5/342 cut-off events. [2022-01-19 00:31:37,793 INFO L130 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2022-01-19 00:31:37,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 342 events. 5/342 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 582 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 396. Up to 29 conditions per place. [2022-01-19 00:31:37,795 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 28 selfloop transitions, 8 changer transitions 0/248 dead transitions. [2022-01-19 00:31:37,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 248 transitions, 595 flow [2022-01-19 00:31:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:31:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:31:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1168 transitions. [2022-01-19 00:31:37,799 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2022-01-19 00:31:37,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1168 transitions. [2022-01-19 00:31:37,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1168 transitions. [2022-01-19 00:31:37,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:37,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1168 transitions. [2022-01-19 00:31:37,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.6) internal successors, (1168), 5 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,806 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,806 INFO L186 Difference]: Start difference. First operand has 242 places, 240 transitions, 507 flow. Second operand 5 states and 1168 transitions. [2022-01-19 00:31:37,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 248 transitions, 595 flow [2022-01-19 00:31:37,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 248 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 00:31:37,812 INFO L242 Difference]: Finished difference. Result has 247 places, 242 transitions, 539 flow [2022-01-19 00:31:37,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=539, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-01-19 00:31:37,814 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 2 predicate places. [2022-01-19 00:31:37,814 INFO L470 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 539 flow [2022-01-19 00:31:37,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:37,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:37,815 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:37,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 00:31:37,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:37,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1043059878, now seen corresponding path program 1 times [2022-01-19 00:31:37,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:37,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844902022] [2022-01-19 00:31:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:37,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 00:31:37,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844902022] [2022-01-19 00:31:37,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844902022] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 00:31:37,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114270437] [2022-01-19 00:31:37,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:37,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:37,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:31:37,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 00:31:38,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 00:31:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:38,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 00:31:38,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 00:31:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 00:31:38,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 00:31:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 00:31:38,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114270437] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 00:31:38,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 00:31:38,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-19 00:31:38,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348436178] [2022-01-19 00:31:38,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 00:31:38,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 00:31:38,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 00:31:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-19 00:31:38,769 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 272 [2022-01-19 00:31:38,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 539 flow. Second operand has 15 states, 15 states have (on average 227.33333333333334) internal successors, (3410), 15 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:38,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:38,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 272 [2022-01-19 00:31:38,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:39,019 INFO L129 PetriNetUnfolder]: 5/360 cut-off events. [2022-01-19 00:31:39,019 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2022-01-19 00:31:39,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 360 events. 5/360 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 564 event pairs, 0 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 446. Up to 23 conditions per place. [2022-01-19 00:31:39,022 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 30 selfloop transitions, 22 changer transitions 0/262 dead transitions. [2022-01-19 00:31:39,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 262 transitions, 687 flow [2022-01-19 00:31:39,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:31:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:31:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2520 transitions. [2022-01-19 00:31:39,029 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8422459893048129 [2022-01-19 00:31:39,029 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2520 transitions. [2022-01-19 00:31:39,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2520 transitions. [2022-01-19 00:31:39,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:39,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2520 transitions. [2022-01-19 00:31:39,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 229.0909090909091) internal successors, (2520), 11 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:39,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:39,044 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:39,044 INFO L186 Difference]: Start difference. First operand has 247 places, 242 transitions, 539 flow. Second operand 11 states and 2520 transitions. [2022-01-19 00:31:39,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 262 transitions, 687 flow [2022-01-19 00:31:39,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 262 transitions, 675 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 00:31:39,050 INFO L242 Difference]: Finished difference. Result has 257 places, 254 transitions, 638 flow [2022-01-19 00:31:39,050 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=638, PETRI_PLACES=257, PETRI_TRANSITIONS=254} [2022-01-19 00:31:39,051 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 12 predicate places. [2022-01-19 00:31:39,051 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 254 transitions, 638 flow [2022-01-19 00:31:39,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 227.33333333333334) internal successors, (3410), 15 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:39,053 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:39,053 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:39,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 00:31:39,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:39,278 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:39,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash 785132506, now seen corresponding path program 2 times [2022-01-19 00:31:39,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:39,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203899281] [2022-01-19 00:31:39,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:39,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 00:31:39,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:39,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203899281] [2022-01-19 00:31:39,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203899281] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 00:31:39,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138311053] [2022-01-19 00:31:39,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 00:31:39,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:39,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:31:39,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 00:31:39,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 00:31:39,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 00:31:39,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 00:31:39,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 00:31:39,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 00:31:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 00:31:39,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 00:31:39,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138311053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:39,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 00:31:39,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 00:31:39,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445854349] [2022-01-19 00:31:39,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:39,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 00:31:39,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 00:31:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-19 00:31:39,876 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2022-01-19 00:31:39,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 254 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:39,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:39,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2022-01-19 00:31:39,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:40,418 INFO L129 PetriNetUnfolder]: 276/1837 cut-off events. [2022-01-19 00:31:40,418 INFO L130 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-01-19 00:31:40,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2571 conditions, 1837 events. 276/1837 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12871 event pairs, 5 based on Foata normal form. 0/1677 useless extension candidates. Maximal degree in co-relation 2560. Up to 212 conditions per place. [2022-01-19 00:31:40,432 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 63 selfloop transitions, 33 changer transitions 0/323 dead transitions. [2022-01-19 00:31:40,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 323 transitions, 979 flow [2022-01-19 00:31:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 00:31:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 00:31:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3050 transitions. [2022-01-19 00:31:40,440 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8625565610859729 [2022-01-19 00:31:40,440 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3050 transitions. [2022-01-19 00:31:40,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3050 transitions. [2022-01-19 00:31:40,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:40,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3050 transitions. [2022-01-19 00:31:40,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 234.6153846153846) internal successors, (3050), 13 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:40,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 272.0) internal successors, (3808), 14 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:40,458 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 272.0) internal successors, (3808), 14 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:40,458 INFO L186 Difference]: Start difference. First operand has 257 places, 254 transitions, 638 flow. Second operand 13 states and 3050 transitions. [2022-01-19 00:31:40,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 323 transitions, 979 flow [2022-01-19 00:31:40,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 323 transitions, 962 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 00:31:40,469 INFO L242 Difference]: Finished difference. Result has 272 places, 285 transitions, 817 flow [2022-01-19 00:31:40,470 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=817, PETRI_PLACES=272, PETRI_TRANSITIONS=285} [2022-01-19 00:31:40,472 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 27 predicate places. [2022-01-19 00:31:40,472 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 285 transitions, 817 flow [2022-01-19 00:31:40,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:40,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:40,473 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:40,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 00:31:40,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:40,688 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2104899672, now seen corresponding path program 3 times [2022-01-19 00:31:40,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:40,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635161326] [2022-01-19 00:31:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:40,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 00:31:40,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:40,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635161326] [2022-01-19 00:31:40,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635161326] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 00:31:40,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676117715] [2022-01-19 00:31:40,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 00:31:40,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:40,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:31:40,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 00:31:40,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 00:31:40,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 00:31:40,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 00:31:40,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 00:31:40,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 00:31:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 00:31:41,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 00:31:41,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676117715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:41,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 00:31:41,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 00:31:41,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777286463] [2022-01-19 00:31:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:41,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 00:31:41,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:41,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 00:31:41,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-19 00:31:41,437 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2022-01-19 00:31:41,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 285 transitions, 817 flow. Second operand has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:41,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:41,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2022-01-19 00:31:41,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:42,046 INFO L129 PetriNetUnfolder]: 297/2037 cut-off events. [2022-01-19 00:31:42,047 INFO L130 PetriNetUnfolder]: For 763/826 co-relation queries the response was YES. [2022-01-19 00:31:42,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3363 conditions, 2037 events. 297/2037 cut-off events. For 763/826 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15035 event pairs, 89 based on Foata normal form. 24/1980 useless extension candidates. Maximal degree in co-relation 3346. Up to 359 conditions per place. [2022-01-19 00:31:42,060 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 78 selfloop transitions, 27 changer transitions 12/344 dead transitions. [2022-01-19 00:31:42,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 344 transitions, 1334 flow [2022-01-19 00:31:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 00:31:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 00:31:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2817 transitions. [2022-01-19 00:31:42,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8630514705882353 [2022-01-19 00:31:42,066 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2817 transitions. [2022-01-19 00:31:42,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2817 transitions. [2022-01-19 00:31:42,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:42,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2817 transitions. [2022-01-19 00:31:42,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 234.75) internal successors, (2817), 12 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:42,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:42,078 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:42,078 INFO L186 Difference]: Start difference. First operand has 272 places, 285 transitions, 817 flow. Second operand 12 states and 2817 transitions. [2022-01-19 00:31:42,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 344 transitions, 1334 flow [2022-01-19 00:31:42,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 344 transitions, 1334 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 00:31:42,089 INFO L242 Difference]: Finished difference. Result has 289 places, 299 transitions, 1011 flow [2022-01-19 00:31:42,090 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1011, PETRI_PLACES=289, PETRI_TRANSITIONS=299} [2022-01-19 00:31:42,090 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 44 predicate places. [2022-01-19 00:31:42,091 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 299 transitions, 1011 flow [2022-01-19 00:31:42,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:42,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:42,092 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:42,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 00:31:42,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:42,316 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:42,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1265491446, now seen corresponding path program 4 times [2022-01-19 00:31:42,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:42,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743481518] [2022-01-19 00:31:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:42,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 00:31:42,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743481518] [2022-01-19 00:31:42,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743481518] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 00:31:42,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985768555] [2022-01-19 00:31:42,430 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 00:31:42,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:42,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:31:42,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 00:31:42,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 00:31:42,537 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 00:31:42,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 00:31:42,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 00:31:42,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 00:31:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 00:31:42,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 00:31:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 00:31:43,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985768555] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 00:31:43,182 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 00:31:43,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 00:31:43,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340530842] [2022-01-19 00:31:43,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 00:31:43,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 00:31:43,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:43,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 00:31:43,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-19 00:31:43,187 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 272 [2022-01-19 00:31:43,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 299 transitions, 1011 flow. Second operand has 22 states, 22 states have (on average 227.1818181818182) internal successors, (4998), 22 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:43,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:43,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 272 [2022-01-19 00:31:43,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:43,729 INFO L129 PetriNetUnfolder]: 71/1339 cut-off events. [2022-01-19 00:31:43,729 INFO L130 PetriNetUnfolder]: For 457/487 co-relation queries the response was YES. [2022-01-19 00:31:43,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1959 conditions, 1339 events. 71/1339 cut-off events. For 457/487 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 7919 event pairs, 2 based on Foata normal form. 11/1328 useless extension candidates. Maximal degree in co-relation 1935. Up to 48 conditions per place. [2022-01-19 00:31:43,738 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 38 selfloop transitions, 34 changer transitions 0/327 dead transitions. [2022-01-19 00:31:43,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 327 transitions, 1267 flow [2022-01-19 00:31:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 00:31:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 00:31:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3884 transitions. [2022-01-19 00:31:43,746 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8399653979238755 [2022-01-19 00:31:43,747 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3884 transitions. [2022-01-19 00:31:43,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3884 transitions. [2022-01-19 00:31:43,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:43,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3884 transitions. [2022-01-19 00:31:43,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 228.47058823529412) internal successors, (3884), 17 states have internal predecessors, (3884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:43,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:43,776 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 272.0) internal successors, (4896), 18 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:43,776 INFO L186 Difference]: Start difference. First operand has 289 places, 299 transitions, 1011 flow. Second operand 17 states and 3884 transitions. [2022-01-19 00:31:43,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 327 transitions, 1267 flow [2022-01-19 00:31:43,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 327 transitions, 1242 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-01-19 00:31:43,786 INFO L242 Difference]: Finished difference. Result has 305 places, 313 transitions, 1161 flow [2022-01-19 00:31:43,786 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1161, PETRI_PLACES=305, PETRI_TRANSITIONS=313} [2022-01-19 00:31:43,787 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 60 predicate places. [2022-01-19 00:31:43,788 INFO L470 AbstractCegarLoop]: Abstraction has has 305 places, 313 transitions, 1161 flow [2022-01-19 00:31:43,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 227.1818181818182) internal successors, (4998), 22 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:43,789 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:43,789 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:43,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-19 00:31:44,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:31:44,013 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1194032934, now seen corresponding path program 5 times [2022-01-19 00:31:44,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:44,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179318435] [2022-01-19 00:31:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:44,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:31:44,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179318435] [2022-01-19 00:31:44,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179318435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:44,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:44,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:44,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334877404] [2022-01-19 00:31:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:44,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:44,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:44,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:44,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 313 transitions, 1161 flow. Second operand has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:44,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:44,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:44,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:44,992 INFO L129 PetriNetUnfolder]: 654/4417 cut-off events. [2022-01-19 00:31:44,993 INFO L130 PetriNetUnfolder]: For 1468/1509 co-relation queries the response was YES. [2022-01-19 00:31:45,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7182 conditions, 4417 events. 654/4417 cut-off events. For 1468/1509 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 38941 event pairs, 15 based on Foata normal form. 36/4306 useless extension candidates. Maximal degree in co-relation 7155. Up to 481 conditions per place. [2022-01-19 00:31:45,022 INFO L132 encePairwiseOnDemand]: 261/272 looper letters, 91 selfloop transitions, 23 changer transitions 2/394 dead transitions. [2022-01-19 00:31:45,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 394 transitions, 1637 flow [2022-01-19 00:31:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:31:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:31:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2325 transitions. [2022-01-19 00:31:45,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8547794117647058 [2022-01-19 00:31:45,028 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2325 transitions. [2022-01-19 00:31:45,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2325 transitions. [2022-01-19 00:31:45,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:45,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2325 transitions. [2022-01-19 00:31:45,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,038 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,038 INFO L186 Difference]: Start difference. First operand has 305 places, 313 transitions, 1161 flow. Second operand 10 states and 2325 transitions. [2022-01-19 00:31:45,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 394 transitions, 1637 flow [2022-01-19 00:31:45,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 394 transitions, 1592 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 00:31:45,057 INFO L242 Difference]: Finished difference. Result has 309 places, 328 transitions, 1226 flow [2022-01-19 00:31:45,058 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1226, PETRI_PLACES=309, PETRI_TRANSITIONS=328} [2022-01-19 00:31:45,059 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 64 predicate places. [2022-01-19 00:31:45,059 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 328 transitions, 1226 flow [2022-01-19 00:31:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,060 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:45,060 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:45,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 00:31:45,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1287676788, now seen corresponding path program 1 times [2022-01-19 00:31:45,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:45,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085307632] [2022-01-19 00:31:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:45,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:31:45,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:45,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085307632] [2022-01-19 00:31:45,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085307632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:45,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:45,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 00:31:45,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862097678] [2022-01-19 00:31:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:45,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 00:31:45,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 00:31:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 00:31:45,127 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 272 [2022-01-19 00:31:45,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 328 transitions, 1226 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:45,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 272 [2022-01-19 00:31:45,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:45,599 INFO L129 PetriNetUnfolder]: 167/2464 cut-off events. [2022-01-19 00:31:45,599 INFO L130 PetriNetUnfolder]: For 1299/1527 co-relation queries the response was YES. [2022-01-19 00:31:45,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 2464 events. 167/2464 cut-off events. For 1299/1527 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18497 event pairs, 31 based on Foata normal form. 112/2483 useless extension candidates. Maximal degree in co-relation 3699. Up to 185 conditions per place. [2022-01-19 00:31:45,618 INFO L132 encePairwiseOnDemand]: 267/272 looper letters, 62 selfloop transitions, 4 changer transitions 0/348 dead transitions. [2022-01-19 00:31:45,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 348 transitions, 1457 flow [2022-01-19 00:31:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 00:31:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 00:31:45,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1224 transitions. [2022-01-19 00:31:45,621 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-01-19 00:31:45,621 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1224 transitions. [2022-01-19 00:31:45,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1224 transitions. [2022-01-19 00:31:45,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:45,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1224 transitions. [2022-01-19 00:31:45,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.8) internal successors, (1224), 5 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,627 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,627 INFO L186 Difference]: Start difference. First operand has 309 places, 328 transitions, 1226 flow. Second operand 5 states and 1224 transitions. [2022-01-19 00:31:45,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 348 transitions, 1457 flow [2022-01-19 00:31:45,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 348 transitions, 1453 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 00:31:45,640 INFO L242 Difference]: Finished difference. Result has 314 places, 328 transitions, 1263 flow [2022-01-19 00:31:45,641 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1263, PETRI_PLACES=314, PETRI_TRANSITIONS=328} [2022-01-19 00:31:45,642 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 69 predicate places. [2022-01-19 00:31:45,642 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 328 transitions, 1263 flow [2022-01-19 00:31:45,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,642 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:45,642 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:45,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 00:31:45,643 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash 847301805, now seen corresponding path program 1 times [2022-01-19 00:31:45,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:45,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716699523] [2022-01-19 00:31:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:45,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:31:45,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:45,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716699523] [2022-01-19 00:31:45,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716699523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:45,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:45,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:45,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282109664] [2022-01-19 00:31:45,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:45,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:45,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:45,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:45,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:45,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 328 transitions, 1263 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:45,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:45,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:45,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:47,086 INFO L129 PetriNetUnfolder]: 1005/6032 cut-off events. [2022-01-19 00:31:47,087 INFO L130 PetriNetUnfolder]: For 4244/4320 co-relation queries the response was YES. [2022-01-19 00:31:47,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11035 conditions, 6032 events. 1005/6032 cut-off events. For 4244/4320 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 54991 event pairs, 233 based on Foata normal form. 76/5834 useless extension candidates. Maximal degree in co-relation 11002. Up to 644 conditions per place. [2022-01-19 00:31:47,128 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 107 selfloop transitions, 53 changer transitions 15/453 dead transitions. [2022-01-19 00:31:47,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 453 transitions, 2148 flow [2022-01-19 00:31:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 00:31:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 00:31:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3257 transitions. [2022-01-19 00:31:47,135 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8553046218487395 [2022-01-19 00:31:47,135 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3257 transitions. [2022-01-19 00:31:47,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3257 transitions. [2022-01-19 00:31:47,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:47,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3257 transitions. [2022-01-19 00:31:47,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 232.64285714285714) internal successors, (3257), 14 states have internal predecessors, (3257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:47,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:47,147 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:47,147 INFO L186 Difference]: Start difference. First operand has 314 places, 328 transitions, 1263 flow. Second operand 14 states and 3257 transitions. [2022-01-19 00:31:47,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 453 transitions, 2148 flow [2022-01-19 00:31:47,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 453 transitions, 2148 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 00:31:47,175 INFO L242 Difference]: Finished difference. Result has 338 places, 364 transitions, 1671 flow [2022-01-19 00:31:47,177 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1671, PETRI_PLACES=338, PETRI_TRANSITIONS=364} [2022-01-19 00:31:47,177 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 93 predicate places. [2022-01-19 00:31:47,177 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 364 transitions, 1671 flow [2022-01-19 00:31:47,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:47,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:47,178 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:47,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 00:31:47,179 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:47,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash -513790471, now seen corresponding path program 2 times [2022-01-19 00:31:47,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:47,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043574688] [2022-01-19 00:31:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:47,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:31:47,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:47,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043574688] [2022-01-19 00:31:47,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043574688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:47,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:47,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 00:31:47,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858517554] [2022-01-19 00:31:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:47,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 00:31:47,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:47,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 00:31:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 00:31:47,307 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:47,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 364 transitions, 1671 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:47,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:47,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:47,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:48,470 INFO L129 PetriNetUnfolder]: 981/6135 cut-off events. [2022-01-19 00:31:48,470 INFO L130 PetriNetUnfolder]: For 8252/8639 co-relation queries the response was YES. [2022-01-19 00:31:48,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12753 conditions, 6135 events. 981/6135 cut-off events. For 8252/8639 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 55215 event pairs, 377 based on Foata normal form. 68/6093 useless extension candidates. Maximal degree in co-relation 12709. Up to 767 conditions per place. [2022-01-19 00:31:48,520 INFO L132 encePairwiseOnDemand]: 263/272 looper letters, 140 selfloop transitions, 33 changer transitions 36/487 dead transitions. [2022-01-19 00:31:48,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 487 transitions, 2771 flow [2022-01-19 00:31:48,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:31:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:31:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2552 transitions. [2022-01-19 00:31:48,526 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2022-01-19 00:31:48,526 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2552 transitions. [2022-01-19 00:31:48,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2552 transitions. [2022-01-19 00:31:48,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:48,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2552 transitions. [2022-01-19 00:31:48,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.0) internal successors, (2552), 11 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:48,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:48,535 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:48,535 INFO L186 Difference]: Start difference. First operand has 338 places, 364 transitions, 1671 flow. Second operand 11 states and 2552 transitions. [2022-01-19 00:31:48,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 487 transitions, 2771 flow [2022-01-19 00:31:48,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 487 transitions, 2748 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 00:31:48,585 INFO L242 Difference]: Finished difference. Result has 351 places, 376 transitions, 1869 flow [2022-01-19 00:31:48,585 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1869, PETRI_PLACES=351, PETRI_TRANSITIONS=376} [2022-01-19 00:31:48,586 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 106 predicate places. [2022-01-19 00:31:48,586 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 376 transitions, 1869 flow [2022-01-19 00:31:48,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:48,586 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:48,608 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:48,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 00:31:48,609 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:48,609 INFO L85 PathProgramCache]: Analyzing trace with hash 430869065, now seen corresponding path program 3 times [2022-01-19 00:31:48,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:48,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890866320] [2022-01-19 00:31:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:48,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:31:48,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:48,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890866320] [2022-01-19 00:31:48,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890866320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:48,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:48,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:48,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349760379] [2022-01-19 00:31:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:48,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:48,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:48,765 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:48,766 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 376 transitions, 1869 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:48,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:48,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:48,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:50,051 INFO L129 PetriNetUnfolder]: 1094/6955 cut-off events. [2022-01-19 00:31:50,051 INFO L130 PetriNetUnfolder]: For 14587/15193 co-relation queries the response was YES. [2022-01-19 00:31:50,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15154 conditions, 6955 events. 1094/6955 cut-off events. For 14587/15193 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 66621 event pairs, 367 based on Foata normal form. 119/6957 useless extension candidates. Maximal degree in co-relation 15104. Up to 866 conditions per place. [2022-01-19 00:31:50,094 INFO L132 encePairwiseOnDemand]: 257/272 looper letters, 113 selfloop transitions, 69 changer transitions 18/478 dead transitions. [2022-01-19 00:31:50,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 478 transitions, 2978 flow [2022-01-19 00:31:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:31:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:31:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2337 transitions. [2022-01-19 00:31:50,097 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8591911764705882 [2022-01-19 00:31:50,097 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2337 transitions. [2022-01-19 00:31:50,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2337 transitions. [2022-01-19 00:31:50,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:50,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2337 transitions. [2022-01-19 00:31:50,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.7) internal successors, (2337), 10 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:50,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:50,106 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:50,106 INFO L186 Difference]: Start difference. First operand has 351 places, 376 transitions, 1869 flow. Second operand 10 states and 2337 transitions. [2022-01-19 00:31:50,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 478 transitions, 2978 flow [2022-01-19 00:31:50,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 478 transitions, 2966 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-01-19 00:31:50,168 INFO L242 Difference]: Finished difference. Result has 363 places, 396 transitions, 2343 flow [2022-01-19 00:31:50,168 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1861, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2343, PETRI_PLACES=363, PETRI_TRANSITIONS=396} [2022-01-19 00:31:50,169 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 118 predicate places. [2022-01-19 00:31:50,169 INFO L470 AbstractCegarLoop]: Abstraction has has 363 places, 396 transitions, 2343 flow [2022-01-19 00:31:50,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:50,169 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:50,170 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:50,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 00:31:50,170 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:50,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:50,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1370081039, now seen corresponding path program 4 times [2022-01-19 00:31:50,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:50,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035927987] [2022-01-19 00:31:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:50,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:31:50,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035927987] [2022-01-19 00:31:50,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035927987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:50,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:50,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:50,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320584857] [2022-01-19 00:31:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:50,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:50,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:50,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:50,317 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:50,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 396 transitions, 2343 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:50,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:50,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:50,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:51,805 INFO L129 PetriNetUnfolder]: 1137/7544 cut-off events. [2022-01-19 00:31:51,805 INFO L130 PetriNetUnfolder]: For 22575/23450 co-relation queries the response was YES. [2022-01-19 00:31:51,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17322 conditions, 7544 events. 1137/7544 cut-off events. For 22575/23450 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 73715 event pairs, 499 based on Foata normal form. 140/7561 useless extension candidates. Maximal degree in co-relation 17266. Up to 809 conditions per place. [2022-01-19 00:31:51,854 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 150 selfloop transitions, 60 changer transitions 8/496 dead transitions. [2022-01-19 00:31:51,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 496 transitions, 3414 flow [2022-01-19 00:31:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:31:51,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:31:51,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2328 transitions. [2022-01-19 00:31:51,858 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8558823529411764 [2022-01-19 00:31:51,858 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2328 transitions. [2022-01-19 00:31:51,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2328 transitions. [2022-01-19 00:31:51,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:51,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2328 transitions. [2022-01-19 00:31:51,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.8) internal successors, (2328), 10 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:51,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:51,864 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:51,864 INFO L186 Difference]: Start difference. First operand has 363 places, 396 transitions, 2343 flow. Second operand 10 states and 2328 transitions. [2022-01-19 00:31:51,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 496 transitions, 3414 flow [2022-01-19 00:31:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 496 transitions, 3396 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-01-19 00:31:51,947 INFO L242 Difference]: Finished difference. Result has 377 places, 408 transitions, 2680 flow [2022-01-19 00:31:51,948 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2327, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2680, PETRI_PLACES=377, PETRI_TRANSITIONS=408} [2022-01-19 00:31:51,949 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 132 predicate places. [2022-01-19 00:31:51,949 INFO L470 AbstractCegarLoop]: Abstraction has has 377 places, 408 transitions, 2680 flow [2022-01-19 00:31:51,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:51,950 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:51,950 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:51,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 00:31:51,950 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash -444991851, now seen corresponding path program 5 times [2022-01-19 00:31:51,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:51,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042705655] [2022-01-19 00:31:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:51,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:31:52,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:52,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042705655] [2022-01-19 00:31:52,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042705655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:52,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:52,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:52,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910212849] [2022-01-19 00:31:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:52,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:52,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:52,088 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:52,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 408 transitions, 2680 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:52,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:52,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:52,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:53,535 INFO L129 PetriNetUnfolder]: 1209/8059 cut-off events. [2022-01-19 00:31:53,535 INFO L130 PetriNetUnfolder]: For 31122/32242 co-relation queries the response was YES. [2022-01-19 00:31:53,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19396 conditions, 8059 events. 1209/8059 cut-off events. For 31122/32242 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 80486 event pairs, 454 based on Foata normal form. 140/8063 useless extension candidates. Maximal degree in co-relation 19334. Up to 836 conditions per place. [2022-01-19 00:31:53,681 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 148 selfloop transitions, 73 changer transitions 12/511 dead transitions. [2022-01-19 00:31:53,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 511 transitions, 3899 flow [2022-01-19 00:31:53,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:31:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:31:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2345 transitions. [2022-01-19 00:31:53,686 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8621323529411765 [2022-01-19 00:31:53,686 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2345 transitions. [2022-01-19 00:31:53,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2345 transitions. [2022-01-19 00:31:53,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:53,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2345 transitions. [2022-01-19 00:31:53,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 234.5) internal successors, (2345), 10 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:53,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:53,695 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:53,695 INFO L186 Difference]: Start difference. First operand has 377 places, 408 transitions, 2680 flow. Second operand 10 states and 2345 transitions. [2022-01-19 00:31:53,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 511 transitions, 3899 flow [2022-01-19 00:31:53,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 511 transitions, 3850 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 00:31:53,811 INFO L242 Difference]: Finished difference. Result has 389 places, 418 transitions, 3086 flow [2022-01-19 00:31:53,811 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2640, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3086, PETRI_PLACES=389, PETRI_TRANSITIONS=418} [2022-01-19 00:31:53,812 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 144 predicate places. [2022-01-19 00:31:53,812 INFO L470 AbstractCegarLoop]: Abstraction has has 389 places, 418 transitions, 3086 flow [2022-01-19 00:31:53,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:53,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:53,813 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:53,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 00:31:53,813 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash -854491031, now seen corresponding path program 6 times [2022-01-19 00:31:53,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:53,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500725370] [2022-01-19 00:31:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:53,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:31:53,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:53,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500725370] [2022-01-19 00:31:53,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500725370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:53,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:53,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:53,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862615775] [2022-01-19 00:31:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:53,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:53,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:53,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:53,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:53,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:53,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 418 transitions, 3086 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:53,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:53,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:53,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:56,151 INFO L129 PetriNetUnfolder]: 1545/11120 cut-off events. [2022-01-19 00:31:56,151 INFO L130 PetriNetUnfolder]: For 43602/44695 co-relation queries the response was YES. [2022-01-19 00:31:56,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26008 conditions, 11120 events. 1545/11120 cut-off events. For 43602/44695 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 122866 event pairs, 332 based on Foata normal form. 210/11165 useless extension candidates. Maximal degree in co-relation 25941. Up to 1091 conditions per place. [2022-01-19 00:31:56,234 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 139 selfloop transitions, 89 changer transitions 8/514 dead transitions. [2022-01-19 00:31:56,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 514 transitions, 4286 flow [2022-01-19 00:31:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:31:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:31:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2551 transitions. [2022-01-19 00:31:56,237 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8526069518716578 [2022-01-19 00:31:56,237 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2551 transitions. [2022-01-19 00:31:56,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2551 transitions. [2022-01-19 00:31:56,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:56,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2551 transitions. [2022-01-19 00:31:56,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 231.9090909090909) internal successors, (2551), 11 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:56,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:56,244 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:56,244 INFO L186 Difference]: Start difference. First operand has 389 places, 418 transitions, 3086 flow. Second operand 11 states and 2551 transitions. [2022-01-19 00:31:56,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 514 transitions, 4286 flow [2022-01-19 00:31:56,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 514 transitions, 4136 flow, removed 25 selfloop flow, removed 6 redundant places. [2022-01-19 00:31:56,403 INFO L242 Difference]: Finished difference. Result has 397 places, 441 transitions, 3621 flow [2022-01-19 00:31:56,404 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3621, PETRI_PLACES=397, PETRI_TRANSITIONS=441} [2022-01-19 00:31:56,404 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2022-01-19 00:31:56,404 INFO L470 AbstractCegarLoop]: Abstraction has has 397 places, 441 transitions, 3621 flow [2022-01-19 00:31:56,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:56,405 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:56,405 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:56,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 00:31:56,405 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1014004619, now seen corresponding path program 7 times [2022-01-19 00:31:56,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:56,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906155960] [2022-01-19 00:31:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:56,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:31:56,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:56,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906155960] [2022-01-19 00:31:56,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906155960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:56,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:56,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:56,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958764289] [2022-01-19 00:31:56,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:56,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:56,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:56,533 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:56,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 441 transitions, 3621 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:56,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:56,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:56,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:31:59,089 INFO L129 PetriNetUnfolder]: 1788/12479 cut-off events. [2022-01-19 00:31:59,089 INFO L130 PetriNetUnfolder]: For 58406/59854 co-relation queries the response was YES. [2022-01-19 00:31:59,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29977 conditions, 12479 events. 1788/12479 cut-off events. For 58406/59854 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 140494 event pairs, 294 based on Foata normal form. 387/12689 useless extension candidates. Maximal degree in co-relation 29909. Up to 1089 conditions per place. [2022-01-19 00:31:59,168 INFO L132 encePairwiseOnDemand]: 252/272 looper letters, 134 selfloop transitions, 154 changer transitions 26/592 dead transitions. [2022-01-19 00:31:59,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 592 transitions, 5602 flow [2022-01-19 00:31:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 00:31:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 00:31:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3717 transitions. [2022-01-19 00:31:59,173 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540900735294118 [2022-01-19 00:31:59,173 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3717 transitions. [2022-01-19 00:31:59,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3717 transitions. [2022-01-19 00:31:59,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:31:59,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3717 transitions. [2022-01-19 00:31:59,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 232.3125) internal successors, (3717), 16 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:59,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 272.0) internal successors, (4624), 17 states have internal predecessors, (4624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:59,182 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 272.0) internal successors, (4624), 17 states have internal predecessors, (4624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:59,183 INFO L186 Difference]: Start difference. First operand has 397 places, 441 transitions, 3621 flow. Second operand 16 states and 3717 transitions. [2022-01-19 00:31:59,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 592 transitions, 5602 flow [2022-01-19 00:31:59,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 592 transitions, 5512 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-01-19 00:31:59,322 INFO L242 Difference]: Finished difference. Result has 417 places, 503 transitions, 4798 flow [2022-01-19 00:31:59,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=3550, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4798, PETRI_PLACES=417, PETRI_TRANSITIONS=503} [2022-01-19 00:31:59,322 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 172 predicate places. [2022-01-19 00:31:59,323 INFO L470 AbstractCegarLoop]: Abstraction has has 417 places, 503 transitions, 4798 flow [2022-01-19 00:31:59,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:59,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:31:59,323 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:31:59,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 00:31:59,324 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:31:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:31:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1508373015, now seen corresponding path program 8 times [2022-01-19 00:31:59,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:31:59,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960104646] [2022-01-19 00:31:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:31:59,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:31:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:31:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:31:59,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:31:59,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960104646] [2022-01-19 00:31:59,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960104646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:31:59,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:31:59,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:31:59,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102972306] [2022-01-19 00:31:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:31:59,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:31:59,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:31:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:31:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:31:59,428 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:31:59,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 503 transitions, 4798 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:31:59,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:31:59,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:31:59,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:01,931 INFO L129 PetriNetUnfolder]: 1776/12151 cut-off events. [2022-01-19 00:32:01,932 INFO L130 PetriNetUnfolder]: For 66515/68199 co-relation queries the response was YES. [2022-01-19 00:32:02,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31826 conditions, 12151 events. 1776/12151 cut-off events. For 66515/68199 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 134888 event pairs, 349 based on Foata normal form. 379/12347 useless extension candidates. Maximal degree in co-relation 31748. Up to 1152 conditions per place. [2022-01-19 00:32:02,024 INFO L132 encePairwiseOnDemand]: 258/272 looper letters, 156 selfloop transitions, 124 changer transitions 12/570 dead transitions. [2022-01-19 00:32:02,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 570 transitions, 5908 flow [2022-01-19 00:32:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:32:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:32:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2560 transitions. [2022-01-19 00:32:02,027 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8556149732620321 [2022-01-19 00:32:02,027 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2560 transitions. [2022-01-19 00:32:02,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2560 transitions. [2022-01-19 00:32:02,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:02,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2560 transitions. [2022-01-19 00:32:02,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.72727272727272) internal successors, (2560), 11 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:02,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:02,034 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:02,034 INFO L186 Difference]: Start difference. First operand has 417 places, 503 transitions, 4798 flow. Second operand 11 states and 2560 transitions. [2022-01-19 00:32:02,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 570 transitions, 5908 flow [2022-01-19 00:32:02,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 570 transitions, 5807 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-01-19 00:32:02,232 INFO L242 Difference]: Finished difference. Result has 418 places, 510 transitions, 5194 flow [2022-01-19 00:32:02,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=4715, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5194, PETRI_PLACES=418, PETRI_TRANSITIONS=510} [2022-01-19 00:32:02,233 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 173 predicate places. [2022-01-19 00:32:02,233 INFO L470 AbstractCegarLoop]: Abstraction has has 418 places, 510 transitions, 5194 flow [2022-01-19 00:32:02,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:02,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:02,233 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:02,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 00:32:02,234 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:02,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1575249665, now seen corresponding path program 9 times [2022-01-19 00:32:02,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:02,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256475398] [2022-01-19 00:32:02,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:02,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:02,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:02,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256475398] [2022-01-19 00:32:02,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256475398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:02,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:02,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:02,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365514302] [2022-01-19 00:32:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:02,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:02,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:02,345 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:02,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 510 transitions, 5194 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:02,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:02,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:02,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:05,014 INFO L129 PetriNetUnfolder]: 1809/12672 cut-off events. [2022-01-19 00:32:05,014 INFO L130 PetriNetUnfolder]: For 74840/76369 co-relation queries the response was YES. [2022-01-19 00:32:05,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33611 conditions, 12672 events. 1809/12672 cut-off events. For 74840/76369 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 142142 event pairs, 334 based on Foata normal form. 448/12945 useless extension candidates. Maximal degree in co-relation 33532. Up to 1929 conditions per place. [2022-01-19 00:32:05,112 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 165 selfloop transitions, 129 changer transitions 9/581 dead transitions. [2022-01-19 00:32:05,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 581 transitions, 6455 flow [2022-01-19 00:32:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:32:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:32:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2319 transitions. [2022-01-19 00:32:05,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8525735294117647 [2022-01-19 00:32:05,115 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2319 transitions. [2022-01-19 00:32:05,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2319 transitions. [2022-01-19 00:32:05,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:05,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2319 transitions. [2022-01-19 00:32:05,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 231.9) internal successors, (2319), 10 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:05,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:05,121 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:05,122 INFO L186 Difference]: Start difference. First operand has 418 places, 510 transitions, 5194 flow. Second operand 10 states and 2319 transitions. [2022-01-19 00:32:05,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 581 transitions, 6455 flow [2022-01-19 00:32:05,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 581 transitions, 6270 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-01-19 00:32:05,322 INFO L242 Difference]: Finished difference. Result has 423 places, 529 transitions, 5735 flow [2022-01-19 00:32:05,323 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=5019, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5735, PETRI_PLACES=423, PETRI_TRANSITIONS=529} [2022-01-19 00:32:05,323 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 178 predicate places. [2022-01-19 00:32:05,323 INFO L470 AbstractCegarLoop]: Abstraction has has 423 places, 529 transitions, 5735 flow [2022-01-19 00:32:05,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:05,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:05,324 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:05,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 00:32:05,324 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:05,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:05,324 INFO L85 PathProgramCache]: Analyzing trace with hash -919408403, now seen corresponding path program 10 times [2022-01-19 00:32:05,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:05,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626826017] [2022-01-19 00:32:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:05,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:05,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:05,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626826017] [2022-01-19 00:32:05,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626826017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:05,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:05,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:05,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285800027] [2022-01-19 00:32:05,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:05,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:05,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:05,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:05,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:05,453 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:05,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 529 transitions, 5735 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:05,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:05,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:05,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:08,077 INFO L129 PetriNetUnfolder]: 1815/12530 cut-off events. [2022-01-19 00:32:08,077 INFO L130 PetriNetUnfolder]: For 79349/80923 co-relation queries the response was YES. [2022-01-19 00:32:08,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34020 conditions, 12530 events. 1815/12530 cut-off events. For 79349/80923 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 139439 event pairs, 236 based on Foata normal form. 610/12970 useless extension candidates. Maximal degree in co-relation 33939. Up to 1728 conditions per place. [2022-01-19 00:32:08,205 INFO L132 encePairwiseOnDemand]: 250/272 looper letters, 132 selfloop transitions, 185 changer transitions 15/610 dead transitions. [2022-01-19 00:32:08,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 610 transitions, 7169 flow [2022-01-19 00:32:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 00:32:08,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 00:32:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3468 transitions. [2022-01-19 00:32:08,209 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.85 [2022-01-19 00:32:08,209 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3468 transitions. [2022-01-19 00:32:08,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3468 transitions. [2022-01-19 00:32:08,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:08,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3468 transitions. [2022-01-19 00:32:08,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 231.2) internal successors, (3468), 15 states have internal predecessors, (3468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:08,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:08,217 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:08,217 INFO L186 Difference]: Start difference. First operand has 423 places, 529 transitions, 5735 flow. Second operand 15 states and 3468 transitions. [2022-01-19 00:32:08,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 610 transitions, 7169 flow [2022-01-19 00:32:08,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 610 transitions, 7090 flow, removed 36 selfloop flow, removed 2 redundant places. [2022-01-19 00:32:08,436 INFO L242 Difference]: Finished difference. Result has 440 places, 545 transitions, 6523 flow [2022-01-19 00:32:08,437 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=5700, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6523, PETRI_PLACES=440, PETRI_TRANSITIONS=545} [2022-01-19 00:32:08,437 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 195 predicate places. [2022-01-19 00:32:08,438 INFO L470 AbstractCegarLoop]: Abstraction has has 440 places, 545 transitions, 6523 flow [2022-01-19 00:32:08,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:08,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:08,438 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:08,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 00:32:08,439 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1652799699, now seen corresponding path program 1 times [2022-01-19 00:32:08,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:08,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233127524] [2022-01-19 00:32:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:08,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:08,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:08,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233127524] [2022-01-19 00:32:08,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233127524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:08,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:08,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 00:32:08,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024764142] [2022-01-19 00:32:08,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:08,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 00:32:08,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 00:32:08,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 00:32:08,555 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:08,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 545 transitions, 6523 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:08,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:08,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:08,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:12,042 INFO L129 PetriNetUnfolder]: 3207/15658 cut-off events. [2022-01-19 00:32:12,042 INFO L130 PetriNetUnfolder]: For 64223/65214 co-relation queries the response was YES. [2022-01-19 00:32:12,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41702 conditions, 15658 events. 3207/15658 cut-off events. For 64223/65214 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 177641 event pairs, 1062 based on Foata normal form. 277/15741 useless extension candidates. Maximal degree in co-relation 41615. Up to 3434 conditions per place. [2022-01-19 00:32:12,183 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 143 selfloop transitions, 25 changer transitions 26/660 dead transitions. [2022-01-19 00:32:12,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 660 transitions, 7546 flow [2022-01-19 00:32:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:32:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:32:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2552 transitions. [2022-01-19 00:32:12,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2022-01-19 00:32:12,186 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2552 transitions. [2022-01-19 00:32:12,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2552 transitions. [2022-01-19 00:32:12,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:12,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2552 transitions. [2022-01-19 00:32:12,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.0) internal successors, (2552), 11 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:12,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:12,192 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:12,192 INFO L186 Difference]: Start difference. First operand has 440 places, 545 transitions, 6523 flow. Second operand 11 states and 2552 transitions. [2022-01-19 00:32:12,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 660 transitions, 7546 flow [2022-01-19 00:32:12,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 660 transitions, 7383 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-01-19 00:32:12,409 INFO L242 Difference]: Finished difference. Result has 449 places, 555 transitions, 6506 flow [2022-01-19 00:32:12,409 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=6364, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6506, PETRI_PLACES=449, PETRI_TRANSITIONS=555} [2022-01-19 00:32:12,409 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 204 predicate places. [2022-01-19 00:32:12,409 INFO L470 AbstractCegarLoop]: Abstraction has has 449 places, 555 transitions, 6506 flow [2022-01-19 00:32:12,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:12,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:12,410 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:12,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 00:32:12,410 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:12,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash 6231931, now seen corresponding path program 11 times [2022-01-19 00:32:12,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:12,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606955968] [2022-01-19 00:32:12,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:12,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:12,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:12,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606955968] [2022-01-19 00:32:12,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606955968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:12,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:12,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:12,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146749963] [2022-01-19 00:32:12,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:12,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:12,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:12,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:12,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:12,524 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:12,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 555 transitions, 6506 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:12,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:12,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:12,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:16,010 INFO L129 PetriNetUnfolder]: 2299/15750 cut-off events. [2022-01-19 00:32:16,010 INFO L130 PetriNetUnfolder]: For 98491/99962 co-relation queries the response was YES. [2022-01-19 00:32:16,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44036 conditions, 15750 events. 2299/15750 cut-off events. For 98491/99962 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 185252 event pairs, 263 based on Foata normal form. 590/16119 useless extension candidates. Maximal degree in co-relation 43946. Up to 2387 conditions per place. [2022-01-19 00:32:16,162 INFO L132 encePairwiseOnDemand]: 252/272 looper letters, 172 selfloop transitions, 197 changer transitions 15/672 dead transitions. [2022-01-19 00:32:16,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 672 transitions, 8822 flow [2022-01-19 00:32:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 00:32:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 00:32:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3240 transitions. [2022-01-19 00:32:16,165 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8508403361344538 [2022-01-19 00:32:16,165 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3240 transitions. [2022-01-19 00:32:16,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3240 transitions. [2022-01-19 00:32:16,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:16,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3240 transitions. [2022-01-19 00:32:16,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 231.42857142857142) internal successors, (3240), 14 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:16,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:16,170 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:16,170 INFO L186 Difference]: Start difference. First operand has 449 places, 555 transitions, 6506 flow. Second operand 14 states and 3240 transitions. [2022-01-19 00:32:16,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 672 transitions, 8822 flow [2022-01-19 00:32:16,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 672 transitions, 8802 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-01-19 00:32:16,442 INFO L242 Difference]: Finished difference. Result has 459 places, 602 transitions, 8252 flow [2022-01-19 00:32:16,443 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=6486, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8252, PETRI_PLACES=459, PETRI_TRANSITIONS=602} [2022-01-19 00:32:16,443 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 214 predicate places. [2022-01-19 00:32:16,443 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 602 transitions, 8252 flow [2022-01-19 00:32:16,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:16,444 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:16,444 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:16,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 00:32:16,444 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:16,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1865901937, now seen corresponding path program 2 times [2022-01-19 00:32:16,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:16,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199240694] [2022-01-19 00:32:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:16,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:16,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:16,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199240694] [2022-01-19 00:32:16,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199240694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:16,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:16,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:16,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123932226] [2022-01-19 00:32:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:16,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:16,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:16,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:16,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:16,696 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:16,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 602 transitions, 8252 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:16,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:16,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:16,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:22,092 INFO L129 PetriNetUnfolder]: 4622/22551 cut-off events. [2022-01-19 00:32:22,092 INFO L130 PetriNetUnfolder]: For 108945/110628 co-relation queries the response was YES. [2022-01-19 00:32:22,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64158 conditions, 22551 events. 4622/22551 cut-off events. For 108945/110628 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 277894 event pairs, 1298 based on Foata normal form. 589/22939 useless extension candidates. Maximal degree in co-relation 64065. Up to 4525 conditions per place. [2022-01-19 00:32:22,317 INFO L132 encePairwiseOnDemand]: 260/272 looper letters, 134 selfloop transitions, 49 changer transitions 5/701 dead transitions. [2022-01-19 00:32:22,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 701 transitions, 9163 flow [2022-01-19 00:32:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 00:32:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 00:32:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2555 transitions. [2022-01-19 00:32:22,320 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8539438502673797 [2022-01-19 00:32:22,320 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2555 transitions. [2022-01-19 00:32:22,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2555 transitions. [2022-01-19 00:32:22,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:22,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2555 transitions. [2022-01-19 00:32:22,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 232.27272727272728) internal successors, (2555), 11 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:22,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:22,325 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 272.0) internal successors, (3264), 12 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:22,326 INFO L186 Difference]: Start difference. First operand has 459 places, 602 transitions, 8252 flow. Second operand 11 states and 2555 transitions. [2022-01-19 00:32:22,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 701 transitions, 9163 flow [2022-01-19 00:32:22,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 701 transitions, 9098 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-01-19 00:32:22,845 INFO L242 Difference]: Finished difference. Result has 465 places, 624 transitions, 8536 flow [2022-01-19 00:32:22,845 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=8187, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8536, PETRI_PLACES=465, PETRI_TRANSITIONS=624} [2022-01-19 00:32:22,845 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 220 predicate places. [2022-01-19 00:32:22,846 INFO L470 AbstractCegarLoop]: Abstraction has has 465 places, 624 transitions, 8536 flow [2022-01-19 00:32:22,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:22,846 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:22,846 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:22,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 00:32:22,846 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:22,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:22,847 INFO L85 PathProgramCache]: Analyzing trace with hash -319450067, now seen corresponding path program 3 times [2022-01-19 00:32:22,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:22,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187671969] [2022-01-19 00:32:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:22,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:22,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:22,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187671969] [2022-01-19 00:32:22,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187671969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:22,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:22,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:22,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452026688] [2022-01-19 00:32:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:22,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:22,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:22,967 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:22,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 624 transitions, 8536 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:22,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:22,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:22,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:29,525 INFO L129 PetriNetUnfolder]: 5056/26496 cut-off events. [2022-01-19 00:32:29,525 INFO L130 PetriNetUnfolder]: For 148768/151062 co-relation queries the response was YES. [2022-01-19 00:32:29,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79854 conditions, 26496 events. 5056/26496 cut-off events. For 148768/151062 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 339162 event pairs, 1254 based on Foata normal form. 944/27212 useless extension candidates. Maximal degree in co-relation 79760. Up to 3358 conditions per place. [2022-01-19 00:32:29,891 INFO L132 encePairwiseOnDemand]: 255/272 looper letters, 113 selfloop transitions, 107 changer transitions 7/740 dead transitions. [2022-01-19 00:32:29,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 740 transitions, 9944 flow [2022-01-19 00:32:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 00:32:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 00:32:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3250 transitions. [2022-01-19 00:32:29,894 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8534663865546218 [2022-01-19 00:32:29,894 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3250 transitions. [2022-01-19 00:32:29,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3250 transitions. [2022-01-19 00:32:29,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:29,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3250 transitions. [2022-01-19 00:32:29,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 232.14285714285714) internal successors, (3250), 14 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:29,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:29,899 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:29,899 INFO L186 Difference]: Start difference. First operand has 465 places, 624 transitions, 8536 flow. Second operand 14 states and 3250 transitions. [2022-01-19 00:32:29,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 740 transitions, 9944 flow [2022-01-19 00:32:30,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 740 transitions, 9860 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-01-19 00:32:30,605 INFO L242 Difference]: Finished difference. Result has 481 places, 658 transitions, 9291 flow [2022-01-19 00:32:30,606 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=8468, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9291, PETRI_PLACES=481, PETRI_TRANSITIONS=658} [2022-01-19 00:32:30,606 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 236 predicate places. [2022-01-19 00:32:30,606 INFO L470 AbstractCegarLoop]: Abstraction has has 481 places, 658 transitions, 9291 flow [2022-01-19 00:32:30,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:30,606 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:30,606 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:30,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 00:32:30,607 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash -607127011, now seen corresponding path program 4 times [2022-01-19 00:32:30,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:30,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495901305] [2022-01-19 00:32:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:30,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:32:30,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:30,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495901305] [2022-01-19 00:32:30,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495901305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:30,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:30,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:30,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932229782] [2022-01-19 00:32:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:30,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:30,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:30,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 658 transitions, 9291 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:30,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:30,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:30,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:38,256 INFO L129 PetriNetUnfolder]: 5384/29471 cut-off events. [2022-01-19 00:32:38,257 INFO L130 PetriNetUnfolder]: For 201934/204750 co-relation queries the response was YES. [2022-01-19 00:32:38,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94973 conditions, 29471 events. 5384/29471 cut-off events. For 201934/204750 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 390168 event pairs, 1546 based on Foata normal form. 887/30082 useless extension candidates. Maximal degree in co-relation 94870. Up to 4757 conditions per place. [2022-01-19 00:32:38,654 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 114 selfloop transitions, 91 changer transitions 36/754 dead transitions. [2022-01-19 00:32:38,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 754 transitions, 10764 flow [2022-01-19 00:32:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:32:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:32:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2331 transitions. [2022-01-19 00:32:38,657 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.856985294117647 [2022-01-19 00:32:38,657 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2331 transitions. [2022-01-19 00:32:38,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2331 transitions. [2022-01-19 00:32:38,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:38,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2331 transitions. [2022-01-19 00:32:38,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.1) internal successors, (2331), 10 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:38,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:38,662 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:38,662 INFO L186 Difference]: Start difference. First operand has 481 places, 658 transitions, 9291 flow. Second operand 10 states and 2331 transitions. [2022-01-19 00:32:38,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 754 transitions, 10764 flow [2022-01-19 00:32:40,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 754 transitions, 10724 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-01-19 00:32:40,032 INFO L242 Difference]: Finished difference. Result has 494 places, 663 transitions, 9732 flow [2022-01-19 00:32:40,033 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=9258, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9732, PETRI_PLACES=494, PETRI_TRANSITIONS=663} [2022-01-19 00:32:40,033 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 249 predicate places. [2022-01-19 00:32:40,033 INFO L470 AbstractCegarLoop]: Abstraction has has 494 places, 663 transitions, 9732 flow [2022-01-19 00:32:40,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:40,033 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:40,034 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:40,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 00:32:40,034 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1841003793, now seen corresponding path program 5 times [2022-01-19 00:32:40,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:40,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953141335] [2022-01-19 00:32:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:40,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:32:40,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:40,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953141335] [2022-01-19 00:32:40,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953141335] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:40,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:40,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:40,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650347827] [2022-01-19 00:32:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:40,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:40,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:40,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:40,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:40,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:40,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 663 transitions, 9732 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:40,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:40,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:40,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:48,243 INFO L129 PetriNetUnfolder]: 5408/30192 cut-off events. [2022-01-19 00:32:48,243 INFO L130 PetriNetUnfolder]: For 246959/250582 co-relation queries the response was YES. [2022-01-19 00:32:48,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102322 conditions, 30192 events. 5408/30192 cut-off events. For 246959/250582 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 403178 event pairs, 1746 based on Foata normal form. 820/30704 useless extension candidates. Maximal degree in co-relation 102212. Up to 3326 conditions per place. [2022-01-19 00:32:48,884 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 150 selfloop transitions, 85 changer transitions 15/763 dead transitions. [2022-01-19 00:32:48,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 763 transitions, 11169 flow [2022-01-19 00:32:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:32:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:32:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2343 transitions. [2022-01-19 00:32:48,887 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8613970588235295 [2022-01-19 00:32:48,887 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2343 transitions. [2022-01-19 00:32:48,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2343 transitions. [2022-01-19 00:32:48,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:32:48,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2343 transitions. [2022-01-19 00:32:48,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 234.3) internal successors, (2343), 10 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:48,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:48,892 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:48,892 INFO L186 Difference]: Start difference. First operand has 494 places, 663 transitions, 9732 flow. Second operand 10 states and 2343 transitions. [2022-01-19 00:32:48,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 763 transitions, 11169 flow [2022-01-19 00:32:50,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 763 transitions, 11061 flow, removed 19 selfloop flow, removed 3 redundant places. [2022-01-19 00:32:50,257 INFO L242 Difference]: Finished difference. Result has 506 places, 675 transitions, 10176 flow [2022-01-19 00:32:50,257 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=9657, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10176, PETRI_PLACES=506, PETRI_TRANSITIONS=675} [2022-01-19 00:32:50,258 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 261 predicate places. [2022-01-19 00:32:50,258 INFO L470 AbstractCegarLoop]: Abstraction has has 506 places, 675 transitions, 10176 flow [2022-01-19 00:32:50,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:50,258 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:32:50,258 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:32:50,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 00:32:50,258 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:32:50,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:32:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1903440025, now seen corresponding path program 6 times [2022-01-19 00:32:50,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:32:50,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595619535] [2022-01-19 00:32:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:32:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:32:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:32:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:32:50,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:32:50,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595619535] [2022-01-19 00:32:50,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595619535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:32:50,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:32:50,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:32:50,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724943883] [2022-01-19 00:32:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:32:50,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:32:50,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:32:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:32:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:32:50,365 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:32:50,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 675 transitions, 10176 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:32:50,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:32:50,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:32:50,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:32:59,381 INFO L129 PetriNetUnfolder]: 5957/33264 cut-off events. [2022-01-19 00:32:59,381 INFO L130 PetriNetUnfolder]: For 292176/295769 co-relation queries the response was YES. [2022-01-19 00:33:00,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115123 conditions, 33264 events. 5957/33264 cut-off events. For 292176/295769 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 451047 event pairs, 1054 based on Foata normal form. 1233/34174 useless extension candidates. Maximal degree in co-relation 115010. Up to 7169 conditions per place. [2022-01-19 00:33:00,127 INFO L132 encePairwiseOnDemand]: 257/272 looper letters, 121 selfloop transitions, 110 changer transitions 10/754 dead transitions. [2022-01-19 00:33:00,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 754 transitions, 11508 flow [2022-01-19 00:33:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 00:33:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 00:33:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2315 transitions. [2022-01-19 00:33:00,129 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8511029411764706 [2022-01-19 00:33:00,129 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2315 transitions. [2022-01-19 00:33:00,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2315 transitions. [2022-01-19 00:33:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:33:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2315 transitions. [2022-01-19 00:33:00,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 231.5) internal successors, (2315), 10 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:00,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:00,134 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 272.0) internal successors, (2992), 11 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:00,134 INFO L186 Difference]: Start difference. First operand has 506 places, 675 transitions, 10176 flow. Second operand 10 states and 2315 transitions. [2022-01-19 00:33:00,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 754 transitions, 11508 flow [2022-01-19 00:33:02,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 754 transitions, 11373 flow, removed 33 selfloop flow, removed 3 redundant places. [2022-01-19 00:33:02,055 INFO L242 Difference]: Finished difference. Result has 517 places, 700 transitions, 10834 flow [2022-01-19 00:33:02,056 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=10070, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10834, PETRI_PLACES=517, PETRI_TRANSITIONS=700} [2022-01-19 00:33:02,056 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 272 predicate places. [2022-01-19 00:33:02,057 INFO L470 AbstractCegarLoop]: Abstraction has has 517 places, 700 transitions, 10834 flow [2022-01-19 00:33:02,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:02,057 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:33:02,057 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:33:02,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 00:33:02,057 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:33:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:33:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1822074569, now seen corresponding path program 7 times [2022-01-19 00:33:02,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:33:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353939850] [2022-01-19 00:33:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:02,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:33:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:33:02,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:33:02,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353939850] [2022-01-19 00:33:02,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353939850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:33:02,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:33:02,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:33:02,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419329987] [2022-01-19 00:33:02,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:33:02,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:33:02,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:33:02,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:33:02,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:33:02,171 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:33:02,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 700 transitions, 10834 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:02,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:33:02,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:33:02,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:33:11,596 INFO L129 PetriNetUnfolder]: 6341/34279 cut-off events. [2022-01-19 00:33:11,596 INFO L130 PetriNetUnfolder]: For 321022/326248 co-relation queries the response was YES. [2022-01-19 00:33:12,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121531 conditions, 34279 events. 6341/34279 cut-off events. For 321022/326248 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 463644 event pairs, 1044 based on Foata normal form. 1618/35574 useless extension candidates. Maximal degree in co-relation 121414. Up to 6957 conditions per place. [2022-01-19 00:33:12,592 INFO L132 encePairwiseOnDemand]: 251/272 looper letters, 116 selfloop transitions, 160 changer transitions 15/804 dead transitions. [2022-01-19 00:33:12,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 804 transitions, 12604 flow [2022-01-19 00:33:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 00:33:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 00:33:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3461 transitions. [2022-01-19 00:33:12,595 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8482843137254902 [2022-01-19 00:33:12,595 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3461 transitions. [2022-01-19 00:33:12,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3461 transitions. [2022-01-19 00:33:12,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:33:12,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3461 transitions. [2022-01-19 00:33:12,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 230.73333333333332) internal successors, (3461), 15 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:12,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:12,601 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:12,602 INFO L186 Difference]: Start difference. First operand has 517 places, 700 transitions, 10834 flow. Second operand 15 states and 3461 transitions. [2022-01-19 00:33:12,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 804 transitions, 12604 flow [2022-01-19 00:33:14,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 804 transitions, 12520 flow, removed 35 selfloop flow, removed 2 redundant places. [2022-01-19 00:33:14,354 INFO L242 Difference]: Finished difference. Result has 536 places, 742 transitions, 11943 flow [2022-01-19 00:33:14,354 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=10788, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11943, PETRI_PLACES=536, PETRI_TRANSITIONS=742} [2022-01-19 00:33:14,355 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 291 predicate places. [2022-01-19 00:33:14,355 INFO L470 AbstractCegarLoop]: Abstraction has has 536 places, 742 transitions, 11943 flow [2022-01-19 00:33:14,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:14,355 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:33:14,356 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:33:14,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 00:33:14,356 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:33:14,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:33:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2129951049, now seen corresponding path program 8 times [2022-01-19 00:33:14,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:33:14,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796665038] [2022-01-19 00:33:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:14,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:33:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:33:14,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:33:14,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796665038] [2022-01-19 00:33:14,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796665038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:33:14,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:33:14,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:33:14,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229627248] [2022-01-19 00:33:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:33:14,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:33:14,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:33:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:33:14,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:33:14,473 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:33:14,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 742 transitions, 11943 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:14,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:33:14,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:33:14,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:33:25,041 INFO L129 PetriNetUnfolder]: 6399/35333 cut-off events. [2022-01-19 00:33:25,041 INFO L130 PetriNetUnfolder]: For 358912/364053 co-relation queries the response was YES. [2022-01-19 00:33:25,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131629 conditions, 35333 events. 6399/35333 cut-off events. For 358912/364053 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 482052 event pairs, 1215 based on Foata normal form. 1629/36635 useless extension candidates. Maximal degree in co-relation 131504. Up to 4771 conditions per place. [2022-01-19 00:33:25,901 INFO L132 encePairwiseOnDemand]: 254/272 looper letters, 166 selfloop transitions, 151 changer transitions 23/853 dead transitions. [2022-01-19 00:33:25,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 853 transitions, 13754 flow [2022-01-19 00:33:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 00:33:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 00:33:25,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3256 transitions. [2022-01-19 00:33:25,904 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8550420168067226 [2022-01-19 00:33:25,904 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3256 transitions. [2022-01-19 00:33:25,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3256 transitions. [2022-01-19 00:33:25,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:33:25,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3256 transitions. [2022-01-19 00:33:25,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 232.57142857142858) internal successors, (3256), 14 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:25,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:25,909 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 272.0) internal successors, (4080), 15 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:25,909 INFO L186 Difference]: Start difference. First operand has 536 places, 742 transitions, 11943 flow. Second operand 14 states and 3256 transitions. [2022-01-19 00:33:25,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 853 transitions, 13754 flow [2022-01-19 00:33:28,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 853 transitions, 13568 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-01-19 00:33:28,505 INFO L242 Difference]: Finished difference. Result has 550 places, 762 transitions, 12664 flow [2022-01-19 00:33:28,506 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=11777, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12664, PETRI_PLACES=550, PETRI_TRANSITIONS=762} [2022-01-19 00:33:28,506 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 305 predicate places. [2022-01-19 00:33:28,506 INFO L470 AbstractCegarLoop]: Abstraction has has 550 places, 762 transitions, 12664 flow [2022-01-19 00:33:28,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:28,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:33:28,507 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:33:28,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 00:33:28,507 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:33:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:33:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash 879963029, now seen corresponding path program 9 times [2022-01-19 00:33:28,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:33:28,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902781865] [2022-01-19 00:33:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:28,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:33:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:33:28,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:33:28,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902781865] [2022-01-19 00:33:28,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902781865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:33:28,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:33:28,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:33:28,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985714249] [2022-01-19 00:33:28,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:33:28,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:33:28,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:33:28,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:33:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:33:28,622 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:33:28,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 762 transitions, 12664 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:28,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:33:28,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:33:28,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:33:39,112 INFO L129 PetriNetUnfolder]: 6365/34723 cut-off events. [2022-01-19 00:33:39,112 INFO L130 PetriNetUnfolder]: For 382870/387766 co-relation queries the response was YES. [2022-01-19 00:33:40,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132738 conditions, 34723 events. 6365/34723 cut-off events. For 382870/387766 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 470483 event pairs, 1062 based on Foata normal form. 1862/36258 useless extension candidates. Maximal degree in co-relation 132608. Up to 4523 conditions per place. [2022-01-19 00:33:40,286 INFO L132 encePairwiseOnDemand]: 253/272 looper letters, 134 selfloop transitions, 194 changer transitions 15/856 dead transitions. [2022-01-19 00:33:40,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 856 transitions, 14210 flow [2022-01-19 00:33:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 00:33:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 00:33:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3485 transitions. [2022-01-19 00:33:40,301 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2022-01-19 00:33:40,301 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3485 transitions. [2022-01-19 00:33:40,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3485 transitions. [2022-01-19 00:33:40,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:33:40,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3485 transitions. [2022-01-19 00:33:40,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 232.33333333333334) internal successors, (3485), 15 states have internal predecessors, (3485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:40,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:40,307 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 272.0) internal successors, (4352), 16 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:40,307 INFO L186 Difference]: Start difference. First operand has 550 places, 762 transitions, 12664 flow. Second operand 15 states and 3485 transitions. [2022-01-19 00:33:40,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 856 transitions, 14210 flow [2022-01-19 00:33:43,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 856 transitions, 14062 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-01-19 00:33:43,419 INFO L242 Difference]: Finished difference. Result has 561 places, 785 transitions, 13487 flow [2022-01-19 00:33:43,420 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=12538, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13487, PETRI_PLACES=561, PETRI_TRANSITIONS=785} [2022-01-19 00:33:43,420 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 316 predicate places. [2022-01-19 00:33:43,420 INFO L470 AbstractCegarLoop]: Abstraction has has 561 places, 785 transitions, 13487 flow [2022-01-19 00:33:43,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:43,421 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:33:43,421 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:33:43,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 00:33:43,421 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:33:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:33:43,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1024573253, now seen corresponding path program 10 times [2022-01-19 00:33:43,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:33:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786726028] [2022-01-19 00:33:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:43,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:33:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-19 00:33:43,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:33:43,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786726028] [2022-01-19 00:33:43,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786726028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 00:33:43,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 00:33:43,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 00:33:43,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726304117] [2022-01-19 00:33:43,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 00:33:43,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 00:33:43,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:33:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 00:33:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 00:33:43,531 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 272 [2022-01-19 00:33:43,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 785 transitions, 13487 flow. Second operand has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:43,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:33:43,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 272 [2022-01-19 00:33:43,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 00:33:53,744 INFO L129 PetriNetUnfolder]: 6357/34552 cut-off events. [2022-01-19 00:33:53,744 INFO L130 PetriNetUnfolder]: For 414043/418772 co-relation queries the response was YES. [2022-01-19 00:33:54,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136569 conditions, 34552 events. 6357/34552 cut-off events. For 414043/418772 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 467664 event pairs, 1222 based on Foata normal form. 1525/35750 useless extension candidates. Maximal degree in co-relation 136435. Up to 4781 conditions per place. [2022-01-19 00:33:54,864 INFO L132 encePairwiseOnDemand]: 259/272 looper letters, 171 selfloop transitions, 146 changer transitions 9/839 dead transitions. [2022-01-19 00:33:54,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 839 transitions, 14420 flow [2022-01-19 00:33:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 00:33:54,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 00:33:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2780 transitions. [2022-01-19 00:33:54,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8517156862745098 [2022-01-19 00:33:54,866 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2780 transitions. [2022-01-19 00:33:54,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2780 transitions. [2022-01-19 00:33:54,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 00:33:54,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2780 transitions. [2022-01-19 00:33:54,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 231.66666666666666) internal successors, (2780), 12 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:54,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:54,870 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 272.0) internal successors, (3536), 13 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:54,870 INFO L186 Difference]: Start difference. First operand has 561 places, 785 transitions, 13487 flow. Second operand 12 states and 2780 transitions. [2022-01-19 00:33:54,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 839 transitions, 14420 flow [2022-01-19 00:33:57,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 839 transitions, 14344 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-01-19 00:33:57,704 INFO L242 Difference]: Finished difference. Result has 570 places, 784 transitions, 13695 flow [2022-01-19 00:33:57,704 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=13413, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13695, PETRI_PLACES=570, PETRI_TRANSITIONS=784} [2022-01-19 00:33:57,705 INFO L334 CegarLoopForPetriNet]: 245 programPoint places, 325 predicate places. [2022-01-19 00:33:57,705 INFO L470 AbstractCegarLoop]: Abstraction has has 570 places, 784 transitions, 13695 flow [2022-01-19 00:33:57,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:33:57,705 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 00:33:57,705 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 00:33:57,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 00:33:57,706 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 00:33:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 00:33:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1313271544, now seen corresponding path program 1 times [2022-01-19 00:33:57,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 00:33:57,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498402246] [2022-01-19 00:33:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:57,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 00:33:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:33:59,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 00:33:59,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498402246] [2022-01-19 00:33:59,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498402246] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 00:33:59,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937206781] [2022-01-19 00:33:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 00:33:59,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 00:33:59,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 00:33:59,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 00:33:59,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 00:33:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 00:33:59,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-19 00:33:59,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 00:34:00,930 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 00:34:00,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-19 00:34:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:34:01,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 00:34:05,754 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-19 00:34:05,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-19 00:34:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 00:34:06,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937206781] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 00:34:06,004 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 00:34:06,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 35, 30] total 96 [2022-01-19 00:34:06,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651268624] [2022-01-19 00:34:06,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 00:34:06,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-19 00:34:06,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 00:34:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-19 00:34:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=8707, Unknown=2, NotChecked=0, Total=9120 [2022-01-19 00:34:06,015 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 272 [2022-01-19 00:34:06,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 784 transitions, 13695 flow. Second operand has 96 states, 96 states have (on average 127.13541666666667) internal successors, (12205), 96 states have internal predecessors, (12205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 00:34:06,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 00:34:06,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 272 [2022-01-19 00:34:06,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand