/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:10:54,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:10:54,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:10:54,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:10:54,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:10:54,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:10:54,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:10:54,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:10:54,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:10:54,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:10:54,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:10:54,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:10:54,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:10:54,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:10:54,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:10:54,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:10:54,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:10:54,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:10:54,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:10:54,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:10:54,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:10:54,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:10:54,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:10:54,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:10:54,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:10:54,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:10:54,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:10:54,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:10:54,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:10:54,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:10:54,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:10:54,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:10:54,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:10:54,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:10:54,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:10:54,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:10:54,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:10:54,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:10:54,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:10:54,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:10:54,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:10:54,453 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-RepeatedSemanticLbe.epf [2022-12-13 03:10:54,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:10:54,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:10:54,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:10:54,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:10:54,487 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:10:54,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:10:54,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:10:54,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:10:54,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:10:54,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:10:54,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:10:54,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:10:54,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:10:54,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:10:54,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:10:54,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:10:54,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:10:54,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:10:54,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:10:54,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:10:54,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:10:54,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:10:54,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:10:54,843 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:10:54,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2022-12-13 03:10:56,094 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:10:56,385 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:10:56,386 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2022-12-13 03:10:56,408 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68445e7e2/aff89b8add734f76b6e8768b08af7c11/FLAG124bea899 [2022-12-13 03:10:56,427 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68445e7e2/aff89b8add734f76b6e8768b08af7c11 [2022-12-13 03:10:56,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:10:56,431 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:10:56,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:10:56,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:10:56,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:10:56,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:56,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3713cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56, skipping insertion in model container [2022-12-13 03:10:56,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:56,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:10:56,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:10:56,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2022-12-13 03:10:56,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:10:56,911 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:10:56,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2022-12-13 03:10:56,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:10:56,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:10:56,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:10:56,995 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:10:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56 WrapperNode [2022-12-13 03:10:56,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:10:56,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:10:56,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:10:56,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:10:57,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,067 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-12-13 03:10:57,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:10:57,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:10:57,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:10:57,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:10:57,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,108 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:10:57,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:10:57,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:10:57,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:10:57,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (1/1) ... [2022-12-13 03:10:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:10:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:10:57,141 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) [2022-12-13 03:10:57,177 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 [2022-12-13 03:10:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:10:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:10:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:10:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:10:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:10:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:10:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:10:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:10:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:10:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:10:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:10:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:10:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:10:57,202 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:10:57,311 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:10:57,313 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:10:57,640 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:10:57,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:10:57,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:10:57,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:10:57 BoogieIcfgContainer [2022-12-13 03:10:57,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:10:57,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:10:57,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:10:57,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:10:57,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:10:56" (1/3) ... [2022-12-13 03:10:57,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd013d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:10:57, skipping insertion in model container [2022-12-13 03:10:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:10:56" (2/3) ... [2022-12-13 03:10:57,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd013d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:10:57, skipping insertion in model container [2022-12-13 03:10:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:10:57" (3/3) ... [2022-12-13 03:10:57,838 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2022-12-13 03:10:57,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:10:57,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 03:10:57,852 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:10:57,900 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:10:57,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-13 03:10:57,985 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-13 03:10:57,985 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:10:57,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 03:10:57,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-13 03:10:57,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-13 03:10:57,996 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:10:58,016 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2022-12-13 03:10:58,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2022-12-13 03:10:58,076 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-13 03:10:58,076 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:10:58,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 03:10:58,079 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2022-12-13 03:10:58,079 INFO L226 LiptonReduction]: Number of co-enabled transitions 1244 [2022-12-13 03:11:05,092 INFO L241 LiptonReduction]: Total number of compositions: 72 [2022-12-13 03:11:05,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:11:05,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@85c26a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:11:05,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 03:11:05,115 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2022-12-13 03:11:05,115 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:11:05,115 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:11:05,116 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 03:11:05,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:11:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:11:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1842977443, now seen corresponding path program 1 times [2022-12-13 03:11:05,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:11:05,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217017355] [2022-12-13 03:11:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:11:05,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:11:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:11:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:11:05,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:11:05,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217017355] [2022-12-13 03:11:05,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217017355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:11:05,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:11:05,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:11:05,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457456912] [2022-12-13 03:11:05,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:11:05,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:11:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:11:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:11:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:11:05,614 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 48 [2022-12-13 03:11:05,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:05,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:11:05,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 48 [2022-12-13 03:11:05,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:11:06,378 INFO L130 PetriNetUnfolder]: 1931/3253 cut-off events. [2022-12-13 03:11:06,379 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 03:11:06,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6367 conditions, 3253 events. 1931/3253 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 19567 event pairs, 383 based on Foata normal form. 0/1954 useless extension candidates. Maximal degree in co-relation 6357. Up to 2413 conditions per place. [2022-12-13 03:11:06,390 INFO L137 encePairwiseOnDemand]: 43/48 looper letters, 25 selfloop transitions, 2 changer transitions 40/73 dead transitions. [2022-12-13 03:11:06,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 73 transitions, 286 flow [2022-12-13 03:11:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:11:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:11:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2022-12-13 03:11:06,400 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 03:11:06,403 INFO L295 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2022-12-13 03:11:06,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 73 transitions, 286 flow [2022-12-13 03:11:06,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 33 transitions, 126 flow [2022-12-13 03:11:06,423 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:11:06,424 INFO L89 Accepts]: Start accepts. Operand has 34 places, 33 transitions, 126 flow [2022-12-13 03:11:06,427 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:11:06,427 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:11:06,427 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 33 transitions, 126 flow [2022-12-13 03:11:06,430 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 33 transitions, 126 flow [2022-12-13 03:11:06,430 INFO L226 LiptonReduction]: Number of co-enabled transitions 178 [2022-12-13 03:11:06,453 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:11:06,455 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-13 03:11:06,455 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 126 flow [2022-12-13 03:11:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:06,455 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:11:06,455 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:11:06,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:11:06,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:11:06,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:11:06,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1297735710, now seen corresponding path program 1 times [2022-12-13 03:11:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:11:06,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213529908] [2022-12-13 03:11:06,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:11:06,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:11:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:11:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:11:07,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:11:07,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213529908] [2022-12-13 03:11:07,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213529908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:11:07,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:11:07,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:11:07,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489448569] [2022-12-13 03:11:07,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:11:07,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:11:07,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:11:07,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:11:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:11:07,205 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2022-12-13 03:11:07,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:07,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:11:07,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2022-12-13 03:11:07,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:11:07,359 INFO L130 PetriNetUnfolder]: 293/538 cut-off events. [2022-12-13 03:11:07,359 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 03:11:07,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 538 events. 293/538 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2179 event pairs, 83 based on Foata normal form. 28/508 useless extension candidates. Maximal degree in co-relation 1524. Up to 370 conditions per place. [2022-12-13 03:11:07,364 INFO L137 encePairwiseOnDemand]: 22/25 looper letters, 33 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2022-12-13 03:11:07,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:11:07,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:11:07,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-12-13 03:11:07,366 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2022-12-13 03:11:07,367 INFO L295 CegarLoopForPetriNet]: 54 programPoint places, -18 predicate places. [2022-12-13 03:11:07,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,373 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:11:07,373 INFO L89 Accepts]: Start accepts. Operand has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,374 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:11:07,374 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:11:07,374 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,376 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 40 transitions, 222 flow [2022-12-13 03:11:07,376 INFO L226 LiptonReduction]: Number of co-enabled transitions 162 [2022-12-13 03:11:08,770 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:11:08,771 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1398 [2022-12-13 03:11:08,771 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 224 flow [2022-12-13 03:11:08,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:08,772 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:11:08,772 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:11:08,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:11:08,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:11:08,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:11:08,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1350564112, now seen corresponding path program 1 times [2022-12-13 03:11:08,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:11:08,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700718125] [2022-12-13 03:11:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:11:08,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:11:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:11:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:11:09,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:11:09,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700718125] [2022-12-13 03:11:09,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700718125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:11:09,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:11:09,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 03:11:09,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358533879] [2022-12-13 03:11:09,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:11:09,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 03:11:09,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:11:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 03:11:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 03:11:09,483 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-13 03:11:09,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:09,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:11:09,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-13 03:11:09,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:11:09,689 INFO L130 PetriNetUnfolder]: 276/518 cut-off events. [2022-12-13 03:11:09,690 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-13 03:11:09,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 518 events. 276/518 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2151 event pairs, 28 based on Foata normal form. 2/462 useless extension candidates. Maximal degree in co-relation 1922. Up to 434 conditions per place. [2022-12-13 03:11:09,694 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 37 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2022-12-13 03:11:09,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:11:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:11:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 74 transitions. [2022-12-13 03:11:09,696 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2022-12-13 03:11:09,697 INFO L295 CegarLoopForPetriNet]: 54 programPoint places, -13 predicate places. [2022-12-13 03:11:09,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,704 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:11:09,704 INFO L89 Accepts]: Start accepts. Operand has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,705 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:11:09,705 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:11:09,705 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,707 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,707 INFO L226 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-13 03:11:09,708 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:11:09,709 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5 [2022-12-13 03:11:09,709 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 53 transitions, 395 flow [2022-12-13 03:11:09,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:09,709 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:11:09,709 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:11:09,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:11:09,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:11:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:11:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash 681885892, now seen corresponding path program 1 times [2022-12-13 03:11:09,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:11:09,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609914161] [2022-12-13 03:11:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:11:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:11:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:11:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:11:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:11:10,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609914161] [2022-12-13 03:11:10,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609914161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:11:10,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:11:10,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:11:10,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576295438] [2022-12-13 03:11:10,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:11:10,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:11:10,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:11:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:11:10,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:11:10,387 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2022-12-13 03:11:10,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 53 transitions, 395 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:10,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:11:10,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2022-12-13 03:11:10,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:11:10,830 INFO L130 PetriNetUnfolder]: 318/610 cut-off events. [2022-12-13 03:11:10,830 INFO L131 PetriNetUnfolder]: For 511/511 co-relation queries the response was YES. [2022-12-13 03:11:10,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 610 events. 318/610 cut-off events. For 511/511 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2761 event pairs, 78 based on Foata normal form. 55/598 useless extension candidates. Maximal degree in co-relation 2756. Up to 493 conditions per place. [2022-12-13 03:11:10,834 INFO L137 encePairwiseOnDemand]: 17/26 looper letters, 44 selfloop transitions, 7 changer transitions 37/92 dead transitions. [2022-12-13 03:11:10,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 92 transitions, 860 flow [2022-12-13 03:11:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 03:11:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 03:11:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2022-12-13 03:11:10,836 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5164835164835165 [2022-12-13 03:11:10,837 INFO L295 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2022-12-13 03:11:10,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 92 transitions, 860 flow [2022-12-13 03:11:10,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 55 transitions, 516 flow [2022-12-13 03:11:10,844 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:11:10,845 INFO L89 Accepts]: Start accepts. Operand has 43 places, 55 transitions, 516 flow [2022-12-13 03:11:10,845 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:11:10,845 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:11:10,846 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 55 transitions, 516 flow [2022-12-13 03:11:10,847 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 55 transitions, 516 flow [2022-12-13 03:11:10,847 INFO L226 LiptonReduction]: Number of co-enabled transitions 106 [2022-12-13 03:11:10,848 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:11:10,849 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5 [2022-12-13 03:11:10,849 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 55 transitions, 516 flow [2022-12-13 03:11:10,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:10,849 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:11:10,849 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:11:10,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:11:10,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:11:10,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:11:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1734120909, now seen corresponding path program 1 times [2022-12-13 03:11:10,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:11:10,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476269225] [2022-12-13 03:11:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:11:10,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:11:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:11:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:11:11,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:11:11,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476269225] [2022-12-13 03:11:11,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476269225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:11:11,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:11:11,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:11:11,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062761714] [2022-12-13 03:11:11,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:11:11,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:11:11,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:11:11,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:11:11,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:11:11,016 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 25 [2022-12-13 03:11:11,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 55 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 03:11:11,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:11:11,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 25 [2022-12-13 03:11:11,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:11:11,178 INFO L130 PetriNetUnfolder]: 225/471 cut-off events. [2022-12-13 03:11:11,178 INFO L131 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2022-12-13 03:11:11,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 471 events. 225/471 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2110 event pairs, 22 based on Foata normal form. 39/461 useless extension candidates. Maximal degree in co-relation 2585. Up to 419 conditions per place. [2022-12-13 03:11:11,182 INFO L137 encePairwiseOnDemand]: 16/25 looper letters, 48 selfloop transitions, 12 changer transitions 39/103 dead transitions. [2022-12-13 03:11:11,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 103 transitions, 1158 flow [2022-12-13 03:11:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:11:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:11:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2022-12-13 03:11:11,184 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.64 [2022-12-13 03:11:11,185 INFO L295 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2022-12-13 03:11:11,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 103 transitions, 1158 flow [2022-12-13 03:11:11,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 64 transitions, 714 flow [2022-12-13 03:11:11,192 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:11:11,192 INFO L89 Accepts]: Start accepts. Operand has 45 places, 64 transitions, 714 flow [2022-12-13 03:11:11,194 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:11:11,194 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:11:11,195 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 64 transitions, 714 flow [2022-12-13 03:11:11,196 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 64 transitions, 714 flow [2022-12-13 03:11:11,197 INFO L226 LiptonReduction]: Number of co-enabled transitions 124 [2022-12-13 03:11:11,216 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [363] L779-->L795: Formula: (let ((.cse6 (= 0 (mod v_~y$r_buff1_thd2~0_70 256))) (.cse9 (= (mod v_~y$r_buff0_thd2~0_85 256) 0))) (let ((.cse10 (not .cse9)) (.cse11 (= (mod v_~y$w_buff0_used~0_152 256) 0)) (.cse3 (and .cse9 (= (mod v_~y$w_buff1_used~0_133 256) 0))) (.cse5 (and .cse6 .cse9))) (let ((.cse1 (or .cse11 .cse3 .cse5)) (.cse2 (and .cse10 (not .cse11))) (.cse0 (not (= (mod v_~weak$$choice2~0_86 256) 0))) (.cse8 (= (mod v_~y$w_buff1_used~0_132 256) 0)) (.cse4 (= (mod v_~y$w_buff0_used~0_151 256) 0))) (and (= v_~y~0_95 (ite .cse0 v_~y$mem_tmp~0_38 v_~__unbuffered_p1_EAX~0_18)) (= |v_P1Thread1of1ForFork1_#t~nondet4#1_1| v_~weak$$choice2~0_86) (= (ite .cse0 v_~y$w_buff0_used~0_152 (ite .cse1 v_~y$w_buff0_used~0_152 (ite .cse2 0 v_~y$w_buff0_used~0_152))) v_~y$w_buff0_used~0_151) (= (ite .cse0 v_~y$w_buff1_used~0_133 (ite (or .cse3 .cse4 .cse5) v_~y$w_buff1_used~0_133 0)) v_~y$w_buff1_used~0_132) (= (ite .cse1 v_~y~0_97 (ite .cse2 v_~y$w_buff0~0_60 v_~y$w_buff1~0_65)) v_~__unbuffered_p1_EAX~0_18) (= |v_P1Thread1of1ForFork1_#t~nondet3#1_1| v_~weak$$choice0~0_17) (= v_~y$w_buff0~0_60 v_~y$w_buff0~0_59) (= (ite .cse0 v_~y$r_buff1_thd2~0_70 (ite (let ((.cse7 (= (mod v_~y$r_buff0_thd2~0_84 256) 0))) (or .cse4 (and .cse6 .cse7) (and .cse7 .cse8))) v_~y$r_buff1_thd2~0_70 0)) v_~y$r_buff1_thd2~0_69) (= (ite .cse0 v_~y$r_buff0_thd2~0_85 (ite (or (and .cse8 .cse9) .cse4 .cse5) v_~y$r_buff0_thd2~0_85 (ite (and .cse10 (not .cse4)) 0 v_~y$r_buff0_thd2~0_85))) v_~y$r_buff0_thd2~0_84) (= v_~y~0_97 v_~y$mem_tmp~0_38) (= 0 v_~y$flush_delayed~0_45) (= v_~y$w_buff1~0_65 v_~y$w_buff1~0_64))))) InVars {~y$r_buff1_thd2~0=v_~y$r_buff1_thd2~0_70, P1Thread1of1ForFork1_#t~nondet4#1=|v_P1Thread1of1ForFork1_#t~nondet4#1_1|, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_152, ~y$w_buff1~0=v_~y$w_buff1~0_65, ~y$w_buff0~0=v_~y$w_buff0~0_60, P1Thread1of1ForFork1_#t~nondet3#1=|v_P1Thread1of1ForFork1_#t~nondet3#1_1|, ~y$r_buff0_thd2~0=v_~y$r_buff0_thd2~0_85, ~y~0=v_~y~0_97, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_133} OutVars{~y$w_buff0_used~0=v_~y$w_buff0_used~0_151, ~y$r_buff1_thd2~0=v_~y$r_buff1_thd2~0_69, ~weak$$choice0~0=v_~weak$$choice0~0_17, ~y$mem_tmp~0=v_~y$mem_tmp~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_18, ~y$w_buff1~0=v_~y$w_buff1~0_64, ~y$w_buff0~0=v_~y$w_buff0~0_59, ~y$r_buff0_thd2~0=v_~y$r_buff0_thd2~0_84, ~y$flush_delayed~0=v_~y$flush_delayed~0_45, ~y~0=v_~y~0_95, ~weak$$choice2~0=v_~weak$$choice2~0_86, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_132} AuxVars[] AssignedVars[~y$w_buff0_used~0, P1Thread1of1ForFork1_#t~nondet3#1, ~y$r_buff1_thd2~0, ~weak$$choice0~0, P1Thread1of1ForFork1_#t~nondet4#1, ~y$mem_tmp~0, ~__unbuffered_p1_EAX~0, ~y$w_buff1~0, ~y$w_buff0~0, ~y$r_buff0_thd2~0, ~y$flush_delayed~0, ~y~0, ~weak$$choice2~0, ~y$w_buff1_used~0] and [380] $Ultimate##0-->L741: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_5 |v_P0Thread1of1ForFork0_#in~arg.offset_5|) (= v_P0Thread1of1ForFork0_~arg.base_5 |v_P0Thread1of1ForFork0_#in~arg.base_5|) (= v_~y~0_181 2)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_5|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_5|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_5|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_5|, ~y~0=v_~y~0_181, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_5, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_5} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] Received shutdown request... [2022-12-13 03:18:35,841 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 03:18:36,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown