/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 09:31:36,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 09:31:36,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 09:31:36,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 09:31:36,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 09:31:36,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 09:31:36,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 09:31:36,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 09:31:36,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 09:31:36,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 09:31:36,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 09:31:36,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 09:31:36,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 09:31:36,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 09:31:36,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 09:31:36,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 09:31:36,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 09:31:36,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 09:31:36,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 09:31:36,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 09:31:36,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 09:31:36,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 09:31:36,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 09:31:36,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 09:31:36,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 09:31:36,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 09:31:36,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 09:31:36,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 09:31:36,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 09:31:36,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 09:31:36,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 09:31:36,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 09:31:36,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 09:31:36,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 09:31:36,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 09:31:36,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 09:31:36,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 09:31:36,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 09:31:36,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 09:31:36,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 09:31:36,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 09:31:36,861 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-Before.epf [2022-01-19 09:31:36,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 09:31:36,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 09:31:36,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 09:31:36,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 09:31:36,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 09:31:36,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 09:31:36,887 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 09:31:36,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 09:31:36,887 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 09:31:36,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 09:31:36,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 09:31:36,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 09:31:36,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 09:31:36,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 09:31:36,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 09:31:36,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 09:31:36,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 09:31:36,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 09:31:36,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 09:31:36,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 09:31:36,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 09:31:36,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 09:31:36,891 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 09:31:36,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 09:31:37,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 09:31:37,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 09:31:37,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 09:31:37,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 09:31:37,099 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 09:31:37,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-01-19 09:31:37,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3953f8f64/f03a2cdfe3664fd1bec33d47f80ef151/FLAGa2f1d98ea [2022-01-19 09:31:37,557 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 09:31:37,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-01-19 09:31:37,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3953f8f64/f03a2cdfe3664fd1bec33d47f80ef151/FLAGa2f1d98ea [2022-01-19 09:31:37,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3953f8f64/f03a2cdfe3664fd1bec33d47f80ef151 [2022-01-19 09:31:37,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 09:31:37,582 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 09:31:37,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 09:31:37,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 09:31:37,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 09:31:37,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 09:31:37" (1/1) ... [2022-01-19 09:31:37,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d41925a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:37, skipping insertion in model container [2022-01-19 09:31:37,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 09:31:37" (1/1) ... [2022-01-19 09:31:37,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 09:31:37,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 09:31:37,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-01-19 09:31:37,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 09:31:37,958 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 09:31:37,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-01-19 09:31:38,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 09:31:38,041 INFO L208 MainTranslator]: Completed translation [2022-01-19 09:31:38,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38 WrapperNode [2022-01-19 09:31:38,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 09:31:38,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 09:31:38,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 09:31:38,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 09:31:38,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,094 INFO L137 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-01-19 09:31:38,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 09:31:38,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 09:31:38,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 09:31:38,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 09:31:38,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 09:31:38,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 09:31:38,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 09:31:38,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 09:31:38,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (1/1) ... [2022-01-19 09:31:38,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 09:31:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:38,158 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 09:31:38,164 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 09:31:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 09:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 09:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-19 09:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 09:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 09:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 09:31:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 09:31:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 09:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 09:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 09:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 09:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 09:31:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 09:31:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 09:31:38,193 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 09:31:38,264 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 09:31:38,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 09:31:38,410 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 09:31:38,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 09:31:38,416 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 09:31:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 09:31:38 BoogieIcfgContainer [2022-01-19 09:31:38,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 09:31:38,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 09:31:38,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 09:31:38,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 09:31:38,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 09:31:37" (1/3) ... [2022-01-19 09:31:38,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580dbf85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 09:31:38, skipping insertion in model container [2022-01-19 09:31:38,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 09:31:38" (2/3) ... [2022-01-19 09:31:38,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580dbf85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 09:31:38, skipping insertion in model container [2022-01-19 09:31:38,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 09:31:38" (3/3) ... [2022-01-19 09:31:38,422 INFO L111 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2022-01-19 09:31:38,425 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 09:31:38,425 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 09:31:38,425 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,448 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,449 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,453 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,454 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,456 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,462 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,464 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,464 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,464 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,464 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,464 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,465 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,465 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,465 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,465 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 09:31:38,467 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 09:31:38,495 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 09:31:38,500 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 09:31:38,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 09:31:38,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 135 transitions, 286 flow [2022-01-19 09:31:38,538 INFO L129 PetriNetUnfolder]: 10/133 cut-off events. [2022-01-19 09:31:38,538 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 09:31:38,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 133 events. 10/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 85. Up to 3 conditions per place. [2022-01-19 09:31:38,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 135 transitions, 286 flow [2022-01-19 09:31:38,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 254 flow [2022-01-19 09:31:38,562 INFO L129 PetriNetUnfolder]: 8/120 cut-off events. [2022-01-19 09:31:38,562 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 09:31:38,562 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:38,563 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] [2022-01-19 09:31:38,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:38,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash 546892702, now seen corresponding path program 1 times [2022-01-19 09:31:38,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:38,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789657116] [2022-01-19 09:31:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:38,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:38,733 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 09:31:38,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:38,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789657116] [2022-01-19 09:31:38,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789657116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 09:31:38,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 09:31:38,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 09:31:38,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007139356] [2022-01-19 09:31:38,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 09:31:38,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 09:31:38,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 09:31:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 09:31:38,769 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 135 [2022-01-19 09:31:38,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 254 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 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 09:31:38,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:38,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 135 [2022-01-19 09:31:38,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:38,827 INFO L129 PetriNetUnfolder]: 4/117 cut-off events. [2022-01-19 09:31:38,827 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 09:31:38,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 117 events. 4/117 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 7/120 useless extension candidates. Maximal degree in co-relation 84. Up to 5 conditions per place. [2022-01-19 09:31:38,830 INFO L132 encePairwiseOnDemand]: 131/135 looper letters, 4 selfloop transitions, 0 changer transitions 0/117 dead transitions. [2022-01-19 09:31:38,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 117 transitions, 254 flow [2022-01-19 09:31:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 09:31:38,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 09:31:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 258 transitions. [2022-01-19 09:31:38,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2022-01-19 09:31:38,844 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 258 transitions. [2022-01-19 09:31:38,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 258 transitions. [2022-01-19 09:31:38,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:38,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 258 transitions. [2022-01-19 09:31:38,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 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 09:31:38,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 09:31:38,860 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 09:31:38,862 INFO L186 Difference]: Start difference. First operand has 120 places, 121 transitions, 254 flow. Second operand 2 states and 258 transitions. [2022-01-19 09:31:38,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 117 transitions, 254 flow [2022-01-19 09:31:38,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 117 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 09:31:38,870 INFO L242 Difference]: Finished difference. Result has 117 places, 117 transitions, 238 flow [2022-01-19 09:31:38,872 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=238, PETRI_PLACES=117, PETRI_TRANSITIONS=117} [2022-01-19 09:31:38,877 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, -3 predicate places. [2022-01-19 09:31:38,877 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 117 transitions, 238 flow [2022-01-19 09:31:38,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 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 09:31:38,877 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:38,877 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] [2022-01-19 09:31:38,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 09:31:38,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -494092674, now seen corresponding path program 1 times [2022-01-19 09:31:38,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:38,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387933702] [2022-01-19 09:31:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:38,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:39,010 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 09:31:39,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:39,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387933702] [2022-01-19 09:31:39,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387933702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 09:31:39,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 09:31:39,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 09:31:39,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163165635] [2022-01-19 09:31:39,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 09:31:39,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 09:31:39,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:39,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 09:31:39,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 09:31:39,015 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 135 [2022-01-19 09:31:39,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 09:31:39,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:39,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 135 [2022-01-19 09:31:39,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:39,074 INFO L129 PetriNetUnfolder]: 18/200 cut-off events. [2022-01-19 09:31:39,075 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 09:31:39,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 200 events. 18/200 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 549 event pairs, 3 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 240. Up to 22 conditions per place. [2022-01-19 09:31:39,078 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 12 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-01-19 09:31:39,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 121 transitions, 275 flow [2022-01-19 09:31:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 09:31:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 09:31:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-01-19 09:31:39,080 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2022-01-19 09:31:39,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-01-19 09:31:39,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-01-19 09:31:39,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:39,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-01-19 09:31:39,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 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 09:31:39,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:39,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:39,084 INFO L186 Difference]: Start difference. First operand has 117 places, 117 transitions, 238 flow. Second operand 3 states and 372 transitions. [2022-01-19 09:31:39,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 121 transitions, 275 flow [2022-01-19 09:31:39,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 121 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 09:31:39,091 INFO L242 Difference]: Finished difference. Result has 120 places, 118 transitions, 250 flow [2022-01-19 09:31:39,094 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=120, PETRI_TRANSITIONS=118} [2022-01-19 09:31:39,095 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2022-01-19 09:31:39,096 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 118 transitions, 250 flow [2022-01-19 09:31:39,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 09:31:39,097 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:39,097 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] [2022-01-19 09:31:39,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 09:31:39,097 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:39,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:39,098 INFO L85 PathProgramCache]: Analyzing trace with hash -963664370, now seen corresponding path program 1 times [2022-01-19 09:31:39,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:39,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23145546] [2022-01-19 09:31:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:39,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 09:31:39,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:39,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23145546] [2022-01-19 09:31:39,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23145546] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:39,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145352710] [2022-01-19 09:31:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:39,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:39,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:39,236 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 09:31:39,237 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 09:31:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:39,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-19 09:31:39,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:39,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 09:31:39,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145352710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 09:31:39,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 09:31:39,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-19 09:31:39,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627982374] [2022-01-19 09:31:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 09:31:39,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 09:31:39,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:39,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 09:31:39,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 09:31:39,470 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 135 [2022-01-19 09:31:39,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 118 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 09:31:39,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:39,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 135 [2022-01-19 09:31:39,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:39,501 INFO L129 PetriNetUnfolder]: 20/195 cut-off events. [2022-01-19 09:31:39,502 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-01-19 09:31:39,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 195 events. 20/195 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 547 event pairs, 7 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 241. Up to 28 conditions per place. [2022-01-19 09:31:39,503 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 15 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2022-01-19 09:31:39,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 295 flow [2022-01-19 09:31:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 09:31:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 09:31:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-01-19 09:31:39,504 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2022-01-19 09:31:39,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-01-19 09:31:39,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-01-19 09:31:39,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:39,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-01-19 09:31:39,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 09:31:39,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:39,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:39,506 INFO L186 Difference]: Start difference. First operand has 120 places, 118 transitions, 250 flow. Second operand 3 states and 369 transitions. [2022-01-19 09:31:39,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 295 flow [2022-01-19 09:31:39,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 09:31:39,508 INFO L242 Difference]: Finished difference. Result has 122 places, 119 transitions, 260 flow [2022-01-19 09:31:39,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=122, PETRI_TRANSITIONS=119} [2022-01-19 09:31:39,509 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places. [2022-01-19 09:31:39,509 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 260 flow [2022-01-19 09:31:39,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 09:31:39,510 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:39,510 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] [2022-01-19 09:31:39,529 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 09:31:39,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:39,724 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -786293827, now seen corresponding path program 1 times [2022-01-19 09:31:39,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:39,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092591282] [2022-01-19 09:31:39,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:39,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:39,796 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 09:31:39,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:39,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092591282] [2022-01-19 09:31:39,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092591282] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:39,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620523230] [2022-01-19 09:31:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:39,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:39,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:39,798 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 09:31:39,799 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 09:31:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:39,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 09:31:39,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:40,078 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 09:31:40,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 09:31:40,223 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 09:31:40,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620523230] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 09:31:40,224 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 09:31:40,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 09:31:40,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939431864] [2022-01-19 09:31:40,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 09:31:40,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 09:31:40,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:40,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 09:31:40,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 09:31:40,228 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 135 [2022-01-19 09:31:40,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 260 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 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 09:31:40,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:40,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 135 [2022-01-19 09:31:40,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:40,327 INFO L129 PetriNetUnfolder]: 26/229 cut-off events. [2022-01-19 09:31:40,327 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 09:31:40,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 229 events. 26/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 540 event pairs, 4 based on Foata normal form. 4/223 useless extension candidates. Maximal degree in co-relation 312. Up to 17 conditions per place. [2022-01-19 09:31:40,329 INFO L132 encePairwiseOnDemand]: 129/135 looper letters, 18 selfloop transitions, 9 changer transitions 0/134 dead transitions. [2022-01-19 09:31:40,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 353 flow [2022-01-19 09:31:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 09:31:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 09:31:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1091 transitions. [2022-01-19 09:31:40,332 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8979423868312757 [2022-01-19 09:31:40,332 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1091 transitions. [2022-01-19 09:31:40,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1091 transitions. [2022-01-19 09:31:40,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:40,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1091 transitions. [2022-01-19 09:31:40,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 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 09:31:40,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 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 09:31:40,338 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 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 09:31:40,339 INFO L186 Difference]: Start difference. First operand has 122 places, 119 transitions, 260 flow. Second operand 9 states and 1091 transitions. [2022-01-19 09:31:40,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 353 flow [2022-01-19 09:31:40,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 09:31:40,343 INFO L242 Difference]: Finished difference. Result has 132 places, 125 transitions, 308 flow [2022-01-19 09:31:40,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=308, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2022-01-19 09:31:40,344 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 12 predicate places. [2022-01-19 09:31:40,345 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 308 flow [2022-01-19 09:31:40,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 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 09:31:40,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:40,346 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2022-01-19 09:31:40,363 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 09:31:40,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-19 09:31:40,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:40,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash 211684319, now seen corresponding path program 2 times [2022-01-19 09:31:40,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:40,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334411160] [2022-01-19 09:31:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:40,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:40,638 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 09:31:40,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:40,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334411160] [2022-01-19 09:31:40,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334411160] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:40,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718444211] [2022-01-19 09:31:40,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 09:31:40,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:40,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:40,656 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 09:31:40,714 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 09:31:40,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 09:31:40,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 09:31:40,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 09:31:40,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 09:31:40,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 09:31:40,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718444211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 09:31:40,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 09:31:40,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-01-19 09:31:40,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868056209] [2022-01-19 09:31:40,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 09:31:40,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 09:31:40,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 09:31:40,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 09:31:40,944 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 135 [2022-01-19 09:31:40,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 0 states have call successors, (0), 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 09:31:40,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:40,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 135 [2022-01-19 09:31:40,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:41,127 INFO L129 PetriNetUnfolder]: 307/1229 cut-off events. [2022-01-19 09:31:41,127 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-01-19 09:31:41,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 1229 events. 307/1229 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7020 event pairs, 41 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 1942. Up to 186 conditions per place. [2022-01-19 09:31:41,135 INFO L132 encePairwiseOnDemand]: 126/135 looper letters, 32 selfloop transitions, 18 changer transitions 0/160 dead transitions. [2022-01-19 09:31:41,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 160 transitions, 484 flow [2022-01-19 09:31:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 09:31:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 09:31:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 851 transitions. [2022-01-19 09:31:41,137 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9005291005291005 [2022-01-19 09:31:41,137 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 851 transitions. [2022-01-19 09:31:41,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 851 transitions. [2022-01-19 09:31:41,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:41,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 851 transitions. [2022-01-19 09:31:41,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.57142857142857) internal successors, (851), 7 states have internal predecessors, (851), 0 states have call successors, (0), 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 09:31:41,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 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 09:31:41,143 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 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 09:31:41,144 INFO L186 Difference]: Start difference. First operand has 132 places, 125 transitions, 308 flow. Second operand 7 states and 851 transitions. [2022-01-19 09:31:41,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 160 transitions, 484 flow [2022-01-19 09:31:41,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 160 transitions, 478 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 09:31:41,150 INFO L242 Difference]: Finished difference. Result has 143 places, 143 transitions, 442 flow [2022-01-19 09:31:41,151 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=442, PETRI_PLACES=143, PETRI_TRANSITIONS=143} [2022-01-19 09:31:41,152 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 23 predicate places. [2022-01-19 09:31:41,152 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 143 transitions, 442 flow [2022-01-19 09:31:41,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 0 states have call successors, (0), 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 09:31:41,153 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:41,153 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2022-01-19 09:31:41,184 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 09:31:41,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:41,369 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1479845303, now seen corresponding path program 3 times [2022-01-19 09:31:41,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:41,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982597438] [2022-01-19 09:31:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:41,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-19 09:31:41,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982597438] [2022-01-19 09:31:41,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982597438] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109109598] [2022-01-19 09:31:41,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 09:31:41,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:41,410 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 09:31:41,411 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 09:31:41,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-19 09:31:41,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 09:31:41,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 09:31:41,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:41,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 09:31:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:41,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109109598] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 09:31:41,851 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 09:31:41,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 12 [2022-01-19 09:31:41,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499151989] [2022-01-19 09:31:41,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 09:31:41,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 09:31:41,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 09:31:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-19 09:31:41,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 135 [2022-01-19 09:31:41,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 143 transitions, 442 flow. Second operand has 12 states, 12 states have (on average 112.75) internal successors, (1353), 12 states have internal predecessors, (1353), 0 states have call successors, (0), 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 09:31:41,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:41,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 135 [2022-01-19 09:31:41,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:42,552 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][315], [2413#(and (<= |thread1Thread1of1ForFork1_#t~post7| 1) (<= thread1Thread1of1ForFork1_~i~0 1)), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, Black: 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 135#true, 21#L885-1true, 1117#(<= 1 ~num~0), 1104#(and (< |thread1Thread1of1ForFork1_#t~post7| 3) (<= thread1Thread1of1ForFork1_~i~0 1))]) [2022-01-19 09:31:42,552 INFO L384 tUnfolder$Statistics]: this new event has 124 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][316], [1106#(and (< thread1Thread1of1ForFork1_~i~0 4) (< |thread1Thread1of1ForFork1_#t~post7| 3)), 2420#(and (<= |thread1Thread1of1ForFork1_#t~post7| 1) (<= thread1Thread1of1ForFork1_~i~0 2)), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), 57#L885-2true, Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, Black: 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 135#true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,553 INFO L384 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-01-19 09:31:42,553 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][321], [102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, 863#(< thread1Thread1of1ForFork1_~i~0 4), 106#L878-2true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 1845#(<= thread1Thread1of1ForFork1_~i~0 2), 135#true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,554 INFO L384 tUnfolder$Statistics]: this new event has 122 ancestors and is cut-off event [2022-01-19 09:31:42,554 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-01-19 09:31:42,554 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-01-19 09:31:42,554 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-01-19 09:31:42,564 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([333] L885-->L885-1: Formula: (= |v_thread1Thread1of1ForFork1_#t~post7_1| v_thread1Thread1of1ForFork1_~i~0_9) InVars {thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} OutVars{thread1Thread1of1ForFork1_#t~post7=|v_thread1Thread1of1ForFork1_#t~post7_1|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post7][285], [2413#(and (<= |thread1Thread1of1ForFork1_#t~post7| 1) (<= thread1Thread1of1ForFork1_~i~0 1)), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, Black: 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 135#true, 21#L885-1true, 1117#(<= 1 ~num~0), 1104#(and (< |thread1Thread1of1ForFork1_#t~post7| 3) (<= thread1Thread1of1ForFork1_~i~0 1))]) [2022-01-19 09:31:42,564 INFO L384 tUnfolder$Statistics]: this new event has 124 ancestors and is cut-off event [2022-01-19 09:31:42,564 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,564 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,564 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-01-19 09:31:42,565 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][321], [102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 863#(< thread1Thread1of1ForFork1_~i~0 4), 27#L897true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 1845#(<= thread1Thread1of1ForFork1_~i~0 2), 135#true, 1117#(<= 1 ~num~0), 23#L879true]) [2022-01-19 09:31:42,565 INFO L384 tUnfolder$Statistics]: this new event has 123 ancestors and is cut-off event [2022-01-19 09:31:42,565 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-01-19 09:31:42,565 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-01-19 09:31:42,565 INFO L387 tUnfolder$Statistics]: existing Event has 127 ancestors and is cut-off event [2022-01-19 09:31:42,624 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][376], [102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 57#L885-2true, 2428#(and (<= thread1Thread1of1ForFork1_~i~0 3) (<= |thread1Thread1of1ForFork1_#t~post7| 2)), 27#L897true, Black: 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), 135#true, 1117#(<= 1 ~num~0), 439#true]) [2022-01-19 09:31:42,624 INFO L384 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-01-19 09:31:42,624 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-01-19 09:31:42,624 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-01-19 09:31:42,624 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-01-19 09:31:42,624 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][375], [2426#(and (<= |thread1Thread1of1ForFork1_#t~post7| 2) (<= thread1Thread1of1ForFork1_~i~0 2)), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 863#(< thread1Thread1of1ForFork1_~i~0 4), 27#L897true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 135#true, 21#L885-1true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,624 INFO L384 tUnfolder$Statistics]: this new event has 135 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][381], [1880#(<= thread1Thread1of1ForFork1_~i~0 3), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, 106#L878-2true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), 135#true, 1117#(<= 1 ~num~0), 439#true]) [2022-01-19 09:31:42,625 INFO L384 tUnfolder$Statistics]: this new event has 133 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-01-19 09:31:42,625 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2022-01-19 09:31:42,630 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([333] L885-->L885-1: Formula: (= |v_thread1Thread1of1ForFork1_#t~post7_1| v_thread1Thread1of1ForFork1_~i~0_9) InVars {thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} OutVars{thread1Thread1of1ForFork1_#t~post7=|v_thread1Thread1of1ForFork1_#t~post7_1|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post7][344], [2426#(and (<= |thread1Thread1of1ForFork1_#t~post7| 2) (<= thread1Thread1of1ForFork1_~i~0 2)), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 863#(< thread1Thread1of1ForFork1_~i~0 4), 27#L897true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 21#L885-1true, 135#true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,630 INFO L384 tUnfolder$Statistics]: this new event has 135 ancestors and is cut-off event [2022-01-19 09:31:42,630 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,630 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,631 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-01-19 09:31:42,631 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][381], [1880#(<= thread1Thread1of1ForFork1_~i~0 3), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 27#L897true, 863#(< thread1Thread1of1ForFork1_~i~0 4), Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 135#true, 1117#(<= 1 ~num~0), 23#L879true]) [2022-01-19 09:31:42,631 INFO L384 tUnfolder$Statistics]: this new event has 134 ancestors and is cut-off event [2022-01-19 09:31:42,631 INFO L387 tUnfolder$Statistics]: existing Event has 138 ancestors and is cut-off event [2022-01-19 09:31:42,631 INFO L387 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-01-19 09:31:42,631 INFO L387 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-01-19 09:31:42,669 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([351] L894-3-->L897: Formula: (= (+ v_~total~0_2 v_thread2Thread1of1ForFork0_~j~0_11) v_~total~0_1) InVars {thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_2} OutVars{thread2Thread1of1ForFork0_~j~0=v_thread2Thread1of1ForFork0_~j~0_11, ~total~0=v_~total~0_1} AuxVars[] AssignedVars[~total~0][381], [1880#(<= thread1Thread1of1ForFork1_~i~0 3), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 863#(< thread1Thread1of1ForFork1_~i~0 4), 27#L897true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 21#L885-1true, 135#true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,669 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-01-19 09:31:42,669 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,669 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,669 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,672 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([333] L885-->L885-1: Formula: (= |v_thread1Thread1of1ForFork1_#t~post7_1| v_thread1Thread1of1ForFork1_~i~0_9) InVars {thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} OutVars{thread1Thread1of1ForFork1_#t~post7=|v_thread1Thread1of1ForFork1_#t~post7_1|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post7][387], [1880#(<= thread1Thread1of1ForFork1_~i~0 3), 102#L914-4true, Black: 1265#(<= 0 ~num~0), Black: 1113#true, Black: 140#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1511#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 0 ~num~0)), Black: 1513#(and (<= 0 |thread1Thread1of1ForFork1_#t~post6|) (<= 1 ~num~0)), Black: 1326#(<= 0 |thread1Thread1of1ForFork1_#t~post6|), 863#(< thread1Thread1of1ForFork1_~i~0 4), 27#L897true, Black: 409#(<= thread2Thread1of1ForFork0_~j~0 0), Black: 443#(<= thread1Thread1of1ForFork1_~i~0 1), Black: 439#true, 21#L885-1true, 135#true, 1117#(<= 1 ~num~0)]) [2022-01-19 09:31:42,673 INFO L384 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-01-19 09:31:42,673 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,673 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,673 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-01-19 09:31:42,688 INFO L129 PetriNetUnfolder]: 1090/3724 cut-off events. [2022-01-19 09:31:42,688 INFO L130 PetriNetUnfolder]: For 2004/2119 co-relation queries the response was YES. [2022-01-19 09:31:42,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8282 conditions, 3724 events. 1090/3724 cut-off events. For 2004/2119 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 27883 event pairs, 77 based on Foata normal form. 109/3761 useless extension candidates. Maximal degree in co-relation 8268. Up to 293 conditions per place. [2022-01-19 09:31:42,717 INFO L132 encePairwiseOnDemand]: 124/135 looper letters, 177 selfloop transitions, 109 changer transitions 0/401 dead transitions. [2022-01-19 09:31:42,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 401 transitions, 1868 flow [2022-01-19 09:31:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-19 09:31:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-01-19 09:31:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 6406 transitions. [2022-01-19 09:31:42,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8473544973544973 [2022-01-19 09:31:42,728 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 6406 transitions. [2022-01-19 09:31:42,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 6406 transitions. [2022-01-19 09:31:42,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:42,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 6406 transitions. [2022-01-19 09:31:42,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 114.39285714285714) internal successors, (6406), 56 states have internal predecessors, (6406), 0 states have call successors, (0), 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 09:31:42,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 135.0) internal successors, (7695), 57 states have internal predecessors, (7695), 0 states have call successors, (0), 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 09:31:42,751 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 135.0) internal successors, (7695), 57 states have internal predecessors, (7695), 0 states have call successors, (0), 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 09:31:42,752 INFO L186 Difference]: Start difference. First operand has 143 places, 143 transitions, 442 flow. Second operand 56 states and 6406 transitions. [2022-01-19 09:31:42,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 401 transitions, 1868 flow [2022-01-19 09:31:42,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 401 transitions, 1868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 09:31:42,762 INFO L242 Difference]: Finished difference. Result has 239 places, 242 transitions, 1357 flow [2022-01-19 09:31:42,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=56, PETRI_FLOW=1357, PETRI_PLACES=239, PETRI_TRANSITIONS=242} [2022-01-19 09:31:42,763 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 119 predicate places. [2022-01-19 09:31:42,763 INFO L470 AbstractCegarLoop]: Abstraction has has 239 places, 242 transitions, 1357 flow [2022-01-19 09:31:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 112.75) internal successors, (1353), 12 states have internal predecessors, (1353), 0 states have call successors, (0), 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 09:31:42,763 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:42,763 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:42,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 09:31:42,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:42,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:42,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1766245062, now seen corresponding path program 4 times [2022-01-19 09:31:42,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:42,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064294444] [2022-01-19 09:31:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:42,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-19 09:31:43,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:43,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064294444] [2022-01-19 09:31:43,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064294444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 09:31:43,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 09:31:43,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 09:31:43,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624081079] [2022-01-19 09:31:43,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 09:31:43,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 09:31:43,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:43,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 09:31:43,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 09:31:43,028 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2022-01-19 09:31:43,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 242 transitions, 1357 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 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 09:31:43,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:43,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2022-01-19 09:31:43,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:43,238 INFO L129 PetriNetUnfolder]: 257/1530 cut-off events. [2022-01-19 09:31:43,238 INFO L130 PetriNetUnfolder]: For 5341/5367 co-relation queries the response was YES. [2022-01-19 09:31:43,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4200 conditions, 1530 events. 257/1530 cut-off events. For 5341/5367 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9437 event pairs, 33 based on Foata normal form. 128/1647 useless extension candidates. Maximal degree in co-relation 4145. Up to 194 conditions per place. [2022-01-19 09:31:43,254 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 16 selfloop transitions, 8 changer transitions 0/234 dead transitions. [2022-01-19 09:31:43,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 234 transitions, 1353 flow [2022-01-19 09:31:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 09:31:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 09:31:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2022-01-19 09:31:43,255 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8617283950617284 [2022-01-19 09:31:43,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2022-01-19 09:31:43,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2022-01-19 09:31:43,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:43,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2022-01-19 09:31:43,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 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 09:31:43,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:43,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 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 09:31:43,257 INFO L186 Difference]: Start difference. First operand has 239 places, 242 transitions, 1357 flow. Second operand 3 states and 349 transitions. [2022-01-19 09:31:43,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 234 transitions, 1353 flow [2022-01-19 09:31:43,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 234 transitions, 1221 flow, removed 27 selfloop flow, removed 9 redundant places. [2022-01-19 09:31:43,288 INFO L242 Difference]: Finished difference. Result has 231 places, 232 transitions, 1183 flow [2022-01-19 09:31:43,289 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=1167, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1183, PETRI_PLACES=231, PETRI_TRANSITIONS=232} [2022-01-19 09:31:43,289 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 111 predicate places. [2022-01-19 09:31:43,289 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 232 transitions, 1183 flow [2022-01-19 09:31:43,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 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 09:31:43,289 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:43,290 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:43,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 09:31:43,290 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash -211696674, now seen corresponding path program 5 times [2022-01-19 09:31:43,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:43,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380195524] [2022-01-19 09:31:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:43,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 09:31:43,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:43,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380195524] [2022-01-19 09:31:43,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380195524] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315496338] [2022-01-19 09:31:43,376 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 09:31:43,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:43,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:43,378 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 09:31:43,379 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 09:31:43,464 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-01-19 09:31:43,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 09:31:43,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 09:31:43,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 09:31:43,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 09:31:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-19 09:31:43,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315496338] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 09:31:43,857 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 09:31:43,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-01-19 09:31:43,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789132911] [2022-01-19 09:31:43,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 09:31:43,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 09:31:43,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 09:31:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-01-19 09:31:43,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 135 [2022-01-19 09:31:43,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 232 transitions, 1183 flow. Second operand has 11 states, 11 states have (on average 118.72727272727273) internal successors, (1306), 11 states have internal predecessors, (1306), 0 states have call successors, (0), 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 09:31:43,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:43,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 135 [2022-01-19 09:31:43,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:44,151 INFO L129 PetriNetUnfolder]: 349/2048 cut-off events. [2022-01-19 09:31:44,151 INFO L130 PetriNetUnfolder]: For 12066/12158 co-relation queries the response was YES. [2022-01-19 09:31:44,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5981 conditions, 2048 events. 349/2048 cut-off events. For 12066/12158 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13541 event pairs, 55 based on Foata normal form. 87/2109 useless extension candidates. Maximal degree in co-relation 5927. Up to 245 conditions per place. [2022-01-19 09:31:44,173 INFO L132 encePairwiseOnDemand]: 129/135 looper letters, 27 selfloop transitions, 56 changer transitions 0/254 dead transitions. [2022-01-19 09:31:44,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 254 transitions, 1515 flow [2022-01-19 09:31:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 09:31:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 09:31:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1433 transitions. [2022-01-19 09:31:44,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8845679012345679 [2022-01-19 09:31:44,175 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1433 transitions. [2022-01-19 09:31:44,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1433 transitions. [2022-01-19 09:31:44,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:44,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1433 transitions. [2022-01-19 09:31:44,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.41666666666667) internal successors, (1433), 12 states have internal predecessors, (1433), 0 states have call successors, (0), 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 09:31:44,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 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 09:31:44,181 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 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 09:31:44,181 INFO L186 Difference]: Start difference. First operand has 231 places, 232 transitions, 1183 flow. Second operand 12 states and 1433 transitions. [2022-01-19 09:31:44,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 254 transitions, 1515 flow [2022-01-19 09:31:44,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 254 transitions, 1507 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 09:31:44,204 INFO L242 Difference]: Finished difference. Result has 244 places, 238 transitions, 1433 flow [2022-01-19 09:31:44,205 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=1175, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1433, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2022-01-19 09:31:44,206 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 124 predicate places. [2022-01-19 09:31:44,206 INFO L470 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 1433 flow [2022-01-19 09:31:44,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.72727272727273) internal successors, (1306), 11 states have internal predecessors, (1306), 0 states have call successors, (0), 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 09:31:44,207 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:44,207 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:44,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 09:31:44,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:44,423 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:44,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash 870212256, now seen corresponding path program 6 times [2022-01-19 09:31:44,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:44,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978880723] [2022-01-19 09:31:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:44,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 99 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-19 09:31:44,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:44,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978880723] [2022-01-19 09:31:44,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978880723] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:44,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338838858] [2022-01-19 09:31:44,510 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-19 09:31:44,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:44,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:44,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 09:31:44,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 09:31:44,626 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-01-19 09:31:44,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 09:31:44,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-19 09:31:44,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-01-19 09:31:44,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 09:31:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-01-19 09:31:45,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338838858] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 09:31:45,000 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 09:31:45,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 13 [2022-01-19 09:31:45,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858392900] [2022-01-19 09:31:45,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 09:31:45,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 09:31:45,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 09:31:45,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-19 09:31:45,002 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 135 [2022-01-19 09:31:45,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 1433 flow. Second operand has 13 states, 13 states have (on average 116.15384615384616) internal successors, (1510), 13 states have internal predecessors, (1510), 0 states have call successors, (0), 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 09:31:45,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:45,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 135 [2022-01-19 09:31:45,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:45,158 INFO L129 PetriNetUnfolder]: 142/871 cut-off events. [2022-01-19 09:31:45,158 INFO L130 PetriNetUnfolder]: For 6016/6053 co-relation queries the response was YES. [2022-01-19 09:31:45,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 871 events. 142/871 cut-off events. For 6016/6053 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3486 event pairs, 41 based on Foata normal form. 85/942 useless extension candidates. Maximal degree in co-relation 2788. Up to 71 conditions per place. [2022-01-19 09:31:45,167 INFO L132 encePairwiseOnDemand]: 124/135 looper letters, 18 selfloop transitions, 11 changer transitions 0/207 dead transitions. [2022-01-19 09:31:45,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 207 transitions, 1203 flow [2022-01-19 09:31:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 09:31:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 09:31:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 931 transitions. [2022-01-19 09:31:45,197 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.862037037037037 [2022-01-19 09:31:45,197 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 931 transitions. [2022-01-19 09:31:45,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 931 transitions. [2022-01-19 09:31:45,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:45,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 931 transitions. [2022-01-19 09:31:45,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 116.375) internal successors, (931), 8 states have internal predecessors, (931), 0 states have call successors, (0), 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 09:31:45,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 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 09:31:45,200 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 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 09:31:45,200 INFO L186 Difference]: Start difference. First operand has 244 places, 238 transitions, 1433 flow. Second operand 8 states and 931 transitions. [2022-01-19 09:31:45,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 207 transitions, 1203 flow [2022-01-19 09:31:45,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 207 transitions, 972 flow, removed 70 selfloop flow, removed 22 redundant places. [2022-01-19 09:31:45,217 INFO L242 Difference]: Finished difference. Result has 219 places, 200 transitions, 930 flow [2022-01-19 09:31:45,218 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=930, PETRI_PLACES=219, PETRI_TRANSITIONS=200} [2022-01-19 09:31:45,218 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 99 predicate places. [2022-01-19 09:31:45,218 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 200 transitions, 930 flow [2022-01-19 09:31:45,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.15384615384616) internal successors, (1510), 13 states have internal predecessors, (1510), 0 states have call successors, (0), 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 09:31:45,219 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 09:31:45,219 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:45,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 09:31:45,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:45,431 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 09:31:45,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 09:31:45,432 INFO L85 PathProgramCache]: Analyzing trace with hash -698864358, now seen corresponding path program 7 times [2022-01-19 09:31:45,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 09:31:45,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663190499] [2022-01-19 09:31:45,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 09:31:45,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 09:31:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:45,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 09:31:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663190499] [2022-01-19 09:31:45,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663190499] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 09:31:45,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894156795] [2022-01-19 09:31:45,776 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-19 09:31:45,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:45,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 09:31:45,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 09:31:45,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 09:31:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 09:31:45,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-19 09:31:45,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 09:31:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 141 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:46,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 09:31:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 09:31:47,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894156795] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 09:31:47,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 09:31:47,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 18] total 44 [2022-01-19 09:31:47,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232516501] [2022-01-19 09:31:47,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 09:31:47,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-19 09:31:47,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 09:31:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-19 09:31:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1705, Unknown=0, NotChecked=0, Total=1892 [2022-01-19 09:31:47,581 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2022-01-19 09:31:47,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 200 transitions, 930 flow. Second operand has 44 states, 44 states have (on average 113.88636363636364) internal successors, (5011), 44 states have internal predecessors, (5011), 0 states have call successors, (0), 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 09:31:47,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 09:31:47,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2022-01-19 09:31:47,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 09:31:48,138 INFO L129 PetriNetUnfolder]: 128/791 cut-off events. [2022-01-19 09:31:48,139 INFO L130 PetriNetUnfolder]: For 2298/2336 co-relation queries the response was YES. [2022-01-19 09:31:48,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 791 events. 128/791 cut-off events. For 2298/2336 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3015 event pairs, 38 based on Foata normal form. 33/811 useless extension candidates. Maximal degree in co-relation 2255. Up to 51 conditions per place. [2022-01-19 09:31:48,142 INFO L132 encePairwiseOnDemand]: 126/135 looper letters, 0 selfloop transitions, 0 changer transitions 211/211 dead transitions. [2022-01-19 09:31:48,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 211 transitions, 1094 flow [2022-01-19 09:31:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 09:31:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 09:31:48,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2280 transitions. [2022-01-19 09:31:48,146 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2022-01-19 09:31:48,146 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2280 transitions. [2022-01-19 09:31:48,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2280 transitions. [2022-01-19 09:31:48,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 09:31:48,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2280 transitions. [2022-01-19 09:31:48,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 114.0) internal successors, (2280), 20 states have internal predecessors, (2280), 0 states have call successors, (0), 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 09:31:48,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 135.0) internal successors, (2835), 21 states have internal predecessors, (2835), 0 states have call successors, (0), 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 09:31:48,152 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 135.0) internal successors, (2835), 21 states have internal predecessors, (2835), 0 states have call successors, (0), 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 09:31:48,152 INFO L186 Difference]: Start difference. First operand has 219 places, 200 transitions, 930 flow. Second operand 20 states and 2280 transitions. [2022-01-19 09:31:48,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 211 transitions, 1094 flow [2022-01-19 09:31:48,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 211 transitions, 1070 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-01-19 09:31:48,162 INFO L242 Difference]: Finished difference. Result has 229 places, 0 transitions, 0 flow [2022-01-19 09:31:48,162 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=0, PETRI_PLACES=229, PETRI_TRANSITIONS=0} [2022-01-19 09:31:48,163 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 109 predicate places. [2022-01-19 09:31:48,163 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 0 transitions, 0 flow [2022-01-19 09:31:48,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 113.88636363636364) internal successors, (5011), 44 states have internal predecessors, (5011), 0 states have call successors, (0), 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 09:31:48,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 09:31:48,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 09:31:48,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 09:31:48,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-19 09:31:48,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 09:31:48,382 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-01-19 09:31:48,383 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 09:31:48,383 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 09:31:48,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 09:31:48 BasicIcfg [2022-01-19 09:31:48,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 09:31:48,386 INFO L158 Benchmark]: Toolchain (without parser) took 10803.99ms. Allocated memory was 419.4MB in the beginning and 589.3MB in the end (delta: 169.9MB). Free memory was 363.8MB in the beginning and 519.9MB in the end (delta: -156.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,386 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 419.4MB. Free memory is still 382.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 09:31:48,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.99ms. Allocated memory is still 419.4MB. Free memory was 363.6MB in the beginning and 376.1MB in the end (delta: -12.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.98ms. Allocated memory is still 419.4MB. Free memory was 376.1MB in the beginning and 374.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,386 INFO L158 Benchmark]: Boogie Preprocessor took 31.52ms. Allocated memory is still 419.4MB. Free memory was 374.0MB in the beginning and 371.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,387 INFO L158 Benchmark]: RCFGBuilder took 289.96ms. Allocated memory is still 419.4MB. Free memory was 371.9MB in the beginning and 355.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,387 INFO L158 Benchmark]: TraceAbstraction took 9967.51ms. Allocated memory was 419.4MB in the beginning and 589.3MB in the end (delta: 169.9MB). Free memory was 354.1MB in the beginning and 519.9MB in the end (delta: -165.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. [2022-01-19 09:31:48,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 419.4MB. Free memory is still 382.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 458.99ms. Allocated memory is still 419.4MB. Free memory was 363.6MB in the beginning and 376.1MB in the end (delta: -12.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.98ms. Allocated memory is still 419.4MB. Free memory was 376.1MB in the beginning and 374.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.52ms. Allocated memory is still 419.4MB. Free memory was 374.0MB in the beginning and 371.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 289.96ms. Allocated memory is still 419.4MB. Free memory was 371.9MB in the beginning and 355.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 9967.51ms. Allocated memory was 419.4MB in the beginning and 589.3MB in the end (delta: 169.9MB). Free memory was 354.1MB in the beginning and 519.9MB in the end (delta: -165.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 171 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.9s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 555 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 555 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1250 IncrementalHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 75 mSDtfsCounter, 1250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1878 GetRequests, 1710 SyntacticMatches, 5 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1958 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1433occurred in iteration=8, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2282 NumberOfCodeBlocks, 2141 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3010 ConstructedInterpolants, 0 QuantifiedInterpolants, 8614 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2199 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 22 InterpolantComputations, 5 PerfectInterpolantSequences, 789/1405 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 09:31:48,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...