/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:32:54,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:32:54,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:32:54,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:32:54,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:32:54,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:32:54,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:32:54,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:32:54,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:32:54,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:32:54,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:32:54,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:32:54,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:32:54,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:32:54,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:32:54,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:32:54,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:32:54,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:32:54,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:32:54,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:32:54,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:32:54,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:32:54,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:32:54,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:32:54,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:32:54,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:32:54,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:32:54,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:32:54,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:32:54,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:32:54,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:32:54,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:32:54,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:32:54,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:32:54,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:32:54,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:32:54,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:32:54,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:32:54,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:32:54,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:32:54,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:32:54,448 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:32:54,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:32:54,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:32:54,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:32:54,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:32:54,473 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:32:54,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:32:54,474 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:32:54,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:32:54,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:32:54,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:32:54,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:32:54,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:32:54,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:32:54,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:32:54,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:32:54,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:32:54,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:32:54,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:32:54,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:32:54,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:32:54,750 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:32:54,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2022-12-06 04:32:55,964 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:32:56,174 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:32:56,174 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2022-12-06 04:32:56,182 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ee04882/c9b385dfc8bd4e09b31211de87fe1702/FLAG1452d91e7 [2022-12-06 04:32:56,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ee04882/c9b385dfc8bd4e09b31211de87fe1702 [2022-12-06 04:32:56,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:32:56,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:32:56,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:32:56,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:32:56,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:32:56,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450ed894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56, skipping insertion in model container [2022-12-06 04:32:56,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:32:56,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:32:56,406 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/safe026_tso.i[945,958] [2022-12-06 04:32:56,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:32:56,566 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:32:56,576 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/safe026_tso.i[945,958] [2022-12-06 04:32:56,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:32:56,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:32:56,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:32:56,647 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:32:56,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56 WrapperNode [2022-12-06 04:32:56,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:32:56,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:32:56,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:32:56,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:32:56,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,697 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-06 04:32:56,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:32:56,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:32:56,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:32:56,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:32:56,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:32:56,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:32:56,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:32:56,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:32:56,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (1/1) ... [2022-12-06 04:32:56,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:32:56,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:32:56,782 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) [2022-12-06 04:32:56,804 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 [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:32:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:32:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:32:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 04:32:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 04:32:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:32:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:32:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:32:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:32:56,817 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:32:56,936 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:32:56,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:32:57,098 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:32:57,103 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:32:57,103 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:32:57,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:32:57 BoogieIcfgContainer [2022-12-06 04:32:57,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:32:57,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:32:57,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:32:57,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:32:57,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:32:56" (1/3) ... [2022-12-06 04:32:57,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dc2e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:32:57, skipping insertion in model container [2022-12-06 04:32:57,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:32:56" (2/3) ... [2022-12-06 04:32:57,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dc2e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:32:57, skipping insertion in model container [2022-12-06 04:32:57,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:32:57" (3/3) ... [2022-12-06 04:32:57,111 INFO L112 eAbstractionObserver]: Analyzing ICFG safe026_tso.i [2022-12-06 04:32:57,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:32:57,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:32:57,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:32:57,192 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:32:57,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-06 04:32:57,281 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-06 04:32:57,281 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:32:57,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-06 04:32:57,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-06 04:32:57,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-06 04:32:57,291 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:32:57,308 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-06 04:32:57,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 145 flow [2022-12-06 04:32:57,339 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-06 04:32:57,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:32:57,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-06 04:32:57,343 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-06 04:32:57,343 INFO L188 LiptonReduction]: Number of co-enabled transitions 974 [2022-12-06 04:32:59,206 INFO L203 LiptonReduction]: Total number of compositions: 52 [2022-12-06 04:32:59,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:32:59,221 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;@39e9b9a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:32:59,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 04:32:59,224 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-06 04:32:59,224 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:32:59,224 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:32:59,225 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:32:59,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:32:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:32:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash 305631444, now seen corresponding path program 1 times [2022-12-06 04:32:59,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:32:59,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369106669] [2022-12-06 04:32:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:32:59,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:32:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:32:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:32:59,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:32:59,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369106669] [2022-12-06 04:32:59,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369106669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:32:59,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:32:59,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:32:59,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193048163] [2022-12-06 04:32:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:32:59,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:32:59,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:32:59,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:32:59,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:32:59,633 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 04:32:59,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:32:59,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:32:59,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 04:32:59,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:32:59,776 INFO L130 PetriNetUnfolder]: 381/628 cut-off events. [2022-12-06 04:32:59,776 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 04:32:59,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 628 events. 381/628 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2535 event pairs, 117 based on Foata normal form. 26/654 useless extension candidates. Maximal degree in co-relation 1292. Up to 439 conditions per place. [2022-12-06 04:32:59,786 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 22 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2022-12-06 04:32:59,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 120 flow [2022-12-06 04:32:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:32:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:32:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-06 04:32:59,797 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-06 04:32:59,798 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 30 transitions. [2022-12-06 04:32:59,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 120 flow [2022-12-06 04:32:59,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:32:59,802 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,803 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2022-12-06 04:32:59,806 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2022-12-06 04:32:59,806 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:32:59,806 INFO L89 Accepts]: Start accepts. Operand has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,809 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:32:59,809 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:32:59,809 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,819 INFO L130 PetriNetUnfolder]: 24/82 cut-off events. [2022-12-06 04:32:59,819 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-06 04:32:59,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 82 events. 24/82 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 311 event pairs, 10 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 163. Up to 45 conditions per place. [2022-12-06 04:32:59,821 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,821 INFO L188 LiptonReduction]: Number of co-enabled transitions 116 [2022-12-06 04:32:59,872 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:32:59,875 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 69 [2022-12-06 04:32:59,875 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 76 flow [2022-12-06 04:32:59,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:32:59,875 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:32:59,875 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:32:59,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:32:59,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:32:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:32:59,881 INFO L85 PathProgramCache]: Analyzing trace with hash 884639643, now seen corresponding path program 1 times [2022-12-06 04:32:59,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:32:59,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452553809] [2022-12-06 04:32:59,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:32:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:32:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:00,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:00,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452553809] [2022-12-06 04:33:00,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452553809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:00,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:00,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:33:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11348013] [2022-12-06 04:33:00,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:00,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:33:00,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:00,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:33:00,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:33:00,023 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-06 04:33:00,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 76 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:00,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-06 04:33:00,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:00,087 INFO L130 PetriNetUnfolder]: 359/594 cut-off events. [2022-12-06 04:33:00,088 INFO L131 PetriNetUnfolder]: For 232/232 co-relation queries the response was YES. [2022-12-06 04:33:00,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 594 events. 359/594 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2284 event pairs, 99 based on Foata normal form. 8/602 useless extension candidates. Maximal degree in co-relation 1560. Up to 339 conditions per place. [2022-12-06 04:33:00,091 INFO L137 encePairwiseOnDemand]: 10/16 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2022-12-06 04:33:00,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 164 flow [2022-12-06 04:33:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:33:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:33:00,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2022-12-06 04:33:00,092 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.453125 [2022-12-06 04:33:00,092 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 76 flow. Second operand 4 states and 29 transitions. [2022-12-06 04:33:00,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 164 flow [2022-12-06 04:33:00,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:33:00,095 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,095 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2022-12-06 04:33:00,095 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2022-12-06 04:33:00,095 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:00,096 INFO L89 Accepts]: Start accepts. Operand has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,096 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:00,096 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:00,096 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,101 INFO L130 PetriNetUnfolder]: 21/73 cut-off events. [2022-12-06 04:33:00,102 INFO L131 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2022-12-06 04:33:00,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 73 events. 21/73 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 248 event pairs, 4 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 177. Up to 40 conditions per place. [2022-12-06 04:33:00,102 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,103 INFO L188 LiptonReduction]: Number of co-enabled transitions 124 [2022-12-06 04:33:00,106 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:33:00,107 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 04:33:00,107 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 104 flow [2022-12-06 04:33:00,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,107 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:00,108 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:00,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:33:00,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:00,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:00,108 INFO L85 PathProgramCache]: Analyzing trace with hash 884640263, now seen corresponding path program 1 times [2022-12-06 04:33:00,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:00,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674146627] [2022-12-06 04:33:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:00,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:00,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674146627] [2022-12-06 04:33:00,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674146627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:00,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:00,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:33:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908870309] [2022-12-06 04:33:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:00,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:33:00,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:00,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:33:00,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:33:00,292 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-06 04:33:00,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:00,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-06 04:33:00,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:00,380 INFO L130 PetriNetUnfolder]: 378/673 cut-off events. [2022-12-06 04:33:00,380 INFO L131 PetriNetUnfolder]: For 575/577 co-relation queries the response was YES. [2022-12-06 04:33:00,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1813 conditions, 673 events. 378/673 cut-off events. For 575/577 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3193 event pairs, 93 based on Foata normal form. 31/684 useless extension candidates. Maximal degree in co-relation 1798. Up to 320 conditions per place. [2022-12-06 04:33:00,389 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 25 selfloop transitions, 5 changer transitions 8/40 dead transitions. [2022-12-06 04:33:00,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 246 flow [2022-12-06 04:33:00,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:33:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:33:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-12-06 04:33:00,391 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.59375 [2022-12-06 04:33:00,391 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 104 flow. Second operand 4 states and 38 transitions. [2022-12-06 04:33:00,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 246 flow [2022-12-06 04:33:00,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 40 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:33:00,395 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,395 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2022-12-06 04:33:00,396 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-06 04:33:00,396 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:00,396 INFO L89 Accepts]: Start accepts. Operand has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,397 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:00,397 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:00,397 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,402 INFO L130 PetriNetUnfolder]: 10/49 cut-off events. [2022-12-06 04:33:00,402 INFO L131 PetriNetUnfolder]: For 67/73 co-relation queries the response was YES. [2022-12-06 04:33:00,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 49 events. 10/49 cut-off events. For 67/73 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 141 event pairs, 3 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 143. Up to 25 conditions per place. [2022-12-06 04:33:00,402 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,403 INFO L188 LiptonReduction]: Number of co-enabled transitions 120 [2022-12-06 04:33:00,405 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:33:00,406 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 04:33:00,406 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 126 flow [2022-12-06 04:33:00,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,407 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:00,407 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:00,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:33:00,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1654025248, now seen corresponding path program 1 times [2022-12-06 04:33:00,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:00,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447211546] [2022-12-06 04:33:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:00,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:00,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:00,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447211546] [2022-12-06 04:33:00,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447211546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:00,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:00,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:33:00,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357344643] [2022-12-06 04:33:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:00,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:33:00,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:33:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:33:00,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 16 [2022-12-06 04:33:00,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:00,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 16 [2022-12-06 04:33:00,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:00,620 INFO L130 PetriNetUnfolder]: 160/304 cut-off events. [2022-12-06 04:33:00,621 INFO L131 PetriNetUnfolder]: For 483/500 co-relation queries the response was YES. [2022-12-06 04:33:00,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 304 events. 160/304 cut-off events. For 483/500 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1246 event pairs, 48 based on Foata normal form. 10/303 useless extension candidates. Maximal degree in co-relation 943. Up to 244 conditions per place. [2022-12-06 04:33:00,624 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 25 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2022-12-06 04:33:00,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 238 flow [2022-12-06 04:33:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:33:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:33:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-06 04:33:00,627 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2022-12-06 04:33:00,628 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 126 flow. Second operand 3 states and 31 transitions. [2022-12-06 04:33:00,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 238 flow [2022-12-06 04:33:00,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 207 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-12-06 04:33:00,631 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,631 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2022-12-06 04:33:00,632 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-06 04:33:00,633 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:00,633 INFO L89 Accepts]: Start accepts. Operand has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,634 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:00,634 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:00,634 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,650 INFO L130 PetriNetUnfolder]: 52/135 cut-off events. [2022-12-06 04:33:00,650 INFO L131 PetriNetUnfolder]: For 35/40 co-relation queries the response was YES. [2022-12-06 04:33:00,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 135 events. 52/135 cut-off events. For 35/40 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 610 event pairs, 20 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 317. Up to 84 conditions per place. [2022-12-06 04:33:00,652 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,652 INFO L188 LiptonReduction]: Number of co-enabled transitions 140 [2022-12-06 04:33:00,655 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:33:00,663 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 30 [2022-12-06 04:33:00,663 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 129 flow [2022-12-06 04:33:00,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,664 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:00,664 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:00,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:33:00,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:00,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:00,665 INFO L85 PathProgramCache]: Analyzing trace with hash 578018293, now seen corresponding path program 1 times [2022-12-06 04:33:00,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:00,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807807408] [2022-12-06 04:33:00,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:00,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:00,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:00,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807807408] [2022-12-06 04:33:00,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807807408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:00,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:00,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:33:00,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080886108] [2022-12-06 04:33:00,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:00,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:33:00,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:00,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:33:00,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:33:00,779 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 16 [2022-12-06 04:33:00,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:00,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 16 [2022-12-06 04:33:00,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:00,820 INFO L130 PetriNetUnfolder]: 96/202 cut-off events. [2022-12-06 04:33:00,820 INFO L131 PetriNetUnfolder]: For 184/207 co-relation queries the response was YES. [2022-12-06 04:33:00,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 202 events. 96/202 cut-off events. For 184/207 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 754 event pairs, 18 based on Foata normal form. 32/230 useless extension candidates. Maximal degree in co-relation 671. Up to 96 conditions per place. [2022-12-06 04:33:00,821 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 31 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2022-12-06 04:33:00,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 285 flow [2022-12-06 04:33:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:33:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:33:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2022-12-06 04:33:00,822 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.640625 [2022-12-06 04:33:00,823 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 129 flow. Second operand 4 states and 41 transitions. [2022-12-06 04:33:00,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 285 flow [2022-12-06 04:33:00,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 281 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:33:00,824 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,824 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2022-12-06 04:33:00,825 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2022-12-06 04:33:00,825 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:00,825 INFO L89 Accepts]: Start accepts. Operand has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,826 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:00,826 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:00,826 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,833 INFO L130 PetriNetUnfolder]: 25/84 cut-off events. [2022-12-06 04:33:00,833 INFO L131 PetriNetUnfolder]: For 62/86 co-relation queries the response was YES. [2022-12-06 04:33:00,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 84 events. 25/84 cut-off events. For 62/86 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 304 event pairs, 3 based on Foata normal form. 7/88 useless extension candidates. Maximal degree in co-relation 259. Up to 52 conditions per place. [2022-12-06 04:33:00,834 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,834 INFO L188 LiptonReduction]: Number of co-enabled transitions 136 [2022-12-06 04:33:00,835 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:33:00,835 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 04:33:00,835 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 165 flow [2022-12-06 04:33:00,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,836 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:00,836 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:00,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:33:00,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:00,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash 683707616, now seen corresponding path program 1 times [2022-12-06 04:33:00,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:00,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413751330] [2022-12-06 04:33:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:00,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413751330] [2022-12-06 04:33:00,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413751330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:00,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:00,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:33:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462037911] [2022-12-06 04:33:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:00,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:33:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:33:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:33:00,924 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 16 [2022-12-06 04:33:00,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:00,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:00,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 16 [2022-12-06 04:33:00,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:00,965 INFO L130 PetriNetUnfolder]: 78/163 cut-off events. [2022-12-06 04:33:00,966 INFO L131 PetriNetUnfolder]: For 329/371 co-relation queries the response was YES. [2022-12-06 04:33:00,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 163 events. 78/163 cut-off events. For 329/371 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 589 event pairs, 14 based on Foata normal form. 40/200 useless extension candidates. Maximal degree in co-relation 617. Up to 73 conditions per place. [2022-12-06 04:33:00,967 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 27 selfloop transitions, 10 changer transitions 1/43 dead transitions. [2022-12-06 04:33:00,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 309 flow [2022-12-06 04:33:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:33:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:33:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2022-12-06 04:33:00,968 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5375 [2022-12-06 04:33:00,968 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 165 flow. Second operand 5 states and 43 transitions. [2022-12-06 04:33:00,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 309 flow [2022-12-06 04:33:00,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 286 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 04:33:00,970 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 174 flow [2022-12-06 04:33:00,970 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2022-12-06 04:33:00,971 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2022-12-06 04:33:00,971 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:00,971 INFO L89 Accepts]: Start accepts. Operand has 40 places, 28 transitions, 174 flow [2022-12-06 04:33:00,972 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:00,972 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:00,972 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 174 flow [2022-12-06 04:33:00,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 174 flow [2022-12-06 04:33:00,977 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-12-06 04:33:00,977 INFO L131 PetriNetUnfolder]: For 87/98 co-relation queries the response was YES. [2022-12-06 04:33:00,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 59 events. 17/59 cut-off events. For 87/98 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 161 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 185. Up to 27 conditions per place. [2022-12-06 04:33:00,978 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 174 flow [2022-12-06 04:33:00,978 INFO L188 LiptonReduction]: Number of co-enabled transitions 114 [2022-12-06 04:33:01,053 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:33:01,054 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 83 [2022-12-06 04:33:01,054 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 172 flow [2022-12-06 04:33:01,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:01,054 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:01,054 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:01,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 04:33:01,054 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:01,055 INFO L85 PathProgramCache]: Analyzing trace with hash 407647914, now seen corresponding path program 1 times [2022-12-06 04:33:01,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:01,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382442074] [2022-12-06 04:33:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:01,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:01,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382442074] [2022-12-06 04:33:01,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382442074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:01,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:01,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:33:01,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242864977] [2022-12-06 04:33:01,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:01,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:33:01,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:01,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:33:01,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:33:01,132 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 15 [2022-12-06 04:33:01,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 172 flow. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:01,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:01,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 15 [2022-12-06 04:33:01,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:01,185 INFO L130 PetriNetUnfolder]: 113/225 cut-off events. [2022-12-06 04:33:01,186 INFO L131 PetriNetUnfolder]: For 470/470 co-relation queries the response was YES. [2022-12-06 04:33:01,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 225 events. 113/225 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 806 event pairs, 9 based on Foata normal form. 1/226 useless extension candidates. Maximal degree in co-relation 885. Up to 111 conditions per place. [2022-12-06 04:33:01,187 INFO L137 encePairwiseOnDemand]: 8/15 looper letters, 24 selfloop transitions, 5 changer transitions 25/54 dead transitions. [2022-12-06 04:33:01,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 437 flow [2022-12-06 04:33:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:33:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:33:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-12-06 04:33:01,188 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49333333333333335 [2022-12-06 04:33:01,188 INFO L175 Difference]: Start difference. First operand has 39 places, 27 transitions, 172 flow. Second operand 5 states and 37 transitions. [2022-12-06 04:33:01,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 437 flow [2022-12-06 04:33:01,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 381 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-06 04:33:01,190 INFO L231 Difference]: Finished difference. Result has 41 places, 21 transitions, 122 flow [2022-12-06 04:33:01,190 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=21} [2022-12-06 04:33:01,191 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2022-12-06 04:33:01,191 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:33:01,191 INFO L89 Accepts]: Start accepts. Operand has 41 places, 21 transitions, 122 flow [2022-12-06 04:33:01,192 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:33:01,192 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:01,192 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 21 transitions, 122 flow [2022-12-06 04:33:01,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 21 transitions, 122 flow [2022-12-06 04:33:01,195 INFO L130 PetriNetUnfolder]: 5/24 cut-off events. [2022-12-06 04:33:01,195 INFO L131 PetriNetUnfolder]: For 28/30 co-relation queries the response was YES. [2022-12-06 04:33:01,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 24 events. 5/24 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2022-12-06 04:33:01,196 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 21 transitions, 122 flow [2022-12-06 04:33:01,196 INFO L188 LiptonReduction]: Number of co-enabled transitions 36 [2022-12-06 04:33:01,323 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [174] L724-->L727: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] and [251] $Ultimate##0-->L754: Formula: (and (= v_P2Thread1of1ForFork0_~arg.offset_9 |v_P2Thread1of1ForFork0_#in~arg.offset_9|) (= v_~x~0_55 v_~__unbuffered_p2_EAX~0_49) (= v_P2Thread1of1ForFork0_~arg.base_9 |v_P2Thread1of1ForFork0_#in~arg.base_9|) (= v_~__unbuffered_p2_EBX~0_51 v_~y~0_37)) InVars {P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_9|, ~y~0=v_~y~0_37, ~x~0=v_~x~0_55, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_9|} OutVars{P2Thread1of1ForFork0_~arg.base=v_P2Thread1of1ForFork0_~arg.base_9, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_9|, P2Thread1of1ForFork0_~arg.offset=v_P2Thread1of1ForFork0_~arg.offset_9, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_37, ~x~0=v_~x~0_55, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_~arg.base, ~__unbuffered_p2_EBX~0, P2Thread1of1ForFork0_~arg.offset, ~__unbuffered_p2_EAX~0] [2022-12-06 04:33:01,347 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [252] L724-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_175 (+ v_~__unbuffered_cnt~0_176 1)) (= v_~x~0_57 1) (= |v_P0Thread1of1ForFork1_#res.offset_19| 0) (= |v_P0Thread1of1ForFork1_#res.base_19| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_176} OutVars{P0Thread1of1ForFork1_#res.offset=|v_P0Thread1of1ForFork1_#res.offset_19|, P0Thread1of1ForFork1_#res.base=|v_P0Thread1of1ForFork1_#res.base_19|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_175, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[P0Thread1of1ForFork1_#res.offset, P0Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0, ~x~0] and [251] $Ultimate##0-->L754: Formula: (and (= v_P2Thread1of1ForFork0_~arg.offset_9 |v_P2Thread1of1ForFork0_#in~arg.offset_9|) (= v_~x~0_55 v_~__unbuffered_p2_EAX~0_49) (= v_P2Thread1of1ForFork0_~arg.base_9 |v_P2Thread1of1ForFork0_#in~arg.base_9|) (= v_~__unbuffered_p2_EBX~0_51 v_~y~0_37)) InVars {P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_9|, ~y~0=v_~y~0_37, ~x~0=v_~x~0_55, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_9|} OutVars{P2Thread1of1ForFork0_~arg.base=v_P2Thread1of1ForFork0_~arg.base_9, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_9|, P2Thread1of1ForFork0_~arg.offset=v_P2Thread1of1ForFork0_~arg.offset_9, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_37, ~x~0=v_~x~0_55, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_~arg.base, ~__unbuffered_p2_EBX~0, P2Thread1of1ForFork0_~arg.offset, ~__unbuffered_p2_EAX~0] [2022-12-06 04:33:01,473 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 04:33:01,474 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 283 [2022-12-06 04:33:01,474 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 17 transitions, 127 flow [2022-12-06 04:33:01,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:01,474 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:33:01,474 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:01,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 04:33:01,474 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:33:01,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:33:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1654653095, now seen corresponding path program 1 times [2022-12-06 04:33:01,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:33:01,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172136660] [2022-12-06 04:33:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:33:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:33:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:33:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:33:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:33:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172136660] [2022-12-06 04:33:01,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172136660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:33:01,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:33:01,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:33:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207047254] [2022-12-06 04:33:01,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:33:01,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:33:01,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:33:01,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:33:01,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:33:01,570 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 04:33:01,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 17 transitions, 127 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:01,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:33:01,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 04:33:01,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:33:01,593 INFO L130 PetriNetUnfolder]: 5/19 cut-off events. [2022-12-06 04:33:01,593 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-12-06 04:33:01,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 19 events. 5/19 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 81. Up to 13 conditions per place. [2022-12-06 04:33:01,594 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2022-12-06 04:33:01,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 16 transitions, 147 flow [2022-12-06 04:33:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:33:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:33:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-12-06 04:33:01,595 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-06 04:33:01,595 INFO L175 Difference]: Start difference. First operand has 36 places, 17 transitions, 127 flow. Second operand 4 states and 14 transitions. [2022-12-06 04:33:01,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 16 transitions, 147 flow [2022-12-06 04:33:01,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 16 transitions, 91 flow, removed 3 selfloop flow, removed 14 redundant places. [2022-12-06 04:33:01,595 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2022-12-06 04:33:01,595 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2022-12-06 04:33:01,596 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2022-12-06 04:33:01,596 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:33:01,596 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 0 transitions, 0 flow [2022-12-06 04:33:01,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:33:01,596 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:33:01,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:33:01,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:33:01,597 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:33:01,597 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:33:01,597 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:33:01,597 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-06 04:33:01,598 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:33:01,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:33:01,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 04:33:01,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 04:33:01,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 04:33:01,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 04:33:01,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 04:33:01,600 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:33:01,602 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:33:01,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:33:01,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:33:01 BasicIcfg [2022-12-06 04:33:01,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:33:01,605 INFO L158 Benchmark]: Toolchain (without parser) took 5407.91ms. Allocated memory was 219.2MB in the beginning and 300.9MB in the end (delta: 81.8MB). Free memory was 194.3MB in the beginning and 251.5MB in the end (delta: -57.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-06 04:33:01,605 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 195.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:33:01,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.10ms. Allocated memory is still 219.2MB. Free memory was 194.0MB in the beginning and 170.7MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 04:33:01,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.74ms. Allocated memory is still 219.2MB. Free memory was 170.7MB in the beginning and 169.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:33:01,605 INFO L158 Benchmark]: Boogie Preprocessor took 30.15ms. Allocated memory is still 219.2MB. Free memory was 169.0MB in the beginning and 167.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:33:01,605 INFO L158 Benchmark]: RCFGBuilder took 375.80ms. Allocated memory is still 219.2MB. Free memory was 167.6MB in the beginning and 153.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 04:33:01,606 INFO L158 Benchmark]: TraceAbstraction took 4497.65ms. Allocated memory was 219.2MB in the beginning and 300.9MB in the end (delta: 81.8MB). Free memory was 152.9MB in the beginning and 251.5MB in the end (delta: -98.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:33:01,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 195.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 440.10ms. Allocated memory is still 219.2MB. Free memory was 194.0MB in the beginning and 170.7MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.74ms. Allocated memory is still 219.2MB. Free memory was 170.7MB in the beginning and 169.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.15ms. Allocated memory is still 219.2MB. Free memory was 169.0MB in the beginning and 167.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 375.80ms. Allocated memory is still 219.2MB. Free memory was 167.6MB in the beginning and 153.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4497.65ms. Allocated memory was 219.2MB in the beginning and 300.9MB in the end (delta: 81.8MB). Free memory was 152.9MB in the beginning and 251.5MB in the end (delta: -98.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 77 PlacesBefore, 26 PlacesAfterwards, 68 TransitionsBefore, 17 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 628, independent: 594, independent conditional: 594, independent unconditional: 0, dependent: 34, dependent conditional: 34, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 628, independent: 594, independent conditional: 0, independent unconditional: 594, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 628, independent: 594, independent conditional: 0, independent unconditional: 594, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 628, independent: 594, independent conditional: 0, independent unconditional: 594, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 573, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 573, independent: 542, independent conditional: 0, independent unconditional: 542, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 628, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 573, unknown conditional: 0, unknown unconditional: 573] , Statistics on independence cache: Total cache size (in pairs): 829, Positive cache size: 804, Positive conditional cache size: 0, Positive unconditional cache size: 804, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 27 PlacesBefore, 27 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, independent: 46, independent conditional: 46, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 52, independent: 46, independent conditional: 8, independent unconditional: 38, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 52, independent: 46, independent conditional: 2, independent unconditional: 44, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 52, independent: 46, independent conditional: 2, independent unconditional: 44, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, independent: 24, independent conditional: 1, independent unconditional: 23, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, independent: 22, independent conditional: 1, independent unconditional: 21, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 28, unknown conditional: 1, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 24, Positive conditional cache size: 1, Positive unconditional cache size: 23, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, independent: 84, independent conditional: 84, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 95, independent: 84, independent conditional: 16, independent unconditional: 68, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 95, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 95, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 33, Positive conditional cache size: 1, Positive unconditional cache size: 32, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 35 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58, independent: 47, independent conditional: 47, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 58, independent: 47, independent conditional: 7, independent unconditional: 40, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 58, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 58, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 33, Positive conditional cache size: 1, Positive unconditional cache size: 32, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, independent: 27, independent conditional: 27, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 30, independent: 27, independent conditional: 9, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30, independent: 27, independent conditional: 3, independent unconditional: 24, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30, independent: 27, independent conditional: 3, independent unconditional: 24, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, independent: 27, independent conditional: 3, independent unconditional: 24, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 33, Positive conditional cache size: 1, Positive unconditional cache size: 32, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, independent: 24, independent conditional: 24, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27, independent: 24, independent conditional: 12, independent unconditional: 12, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27, independent: 24, independent conditional: 6, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, independent: 24, independent conditional: 6, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, independent: 24, independent conditional: 6, independent unconditional: 18, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 33, Positive conditional cache size: 1, Positive unconditional cache size: 32, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 40 PlacesBefore, 39 PlacesAfterwards, 28 TransitionsBefore, 27 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 33, Positive conditional cache size: 1, Positive unconditional cache size: 32, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 40 PlacesBefore, 36 PlacesAfterwards, 21 TransitionsBefore, 17 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, independent: 32, independent conditional: 32, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 32, independent: 32, independent conditional: 32, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 32, independent: 32, independent conditional: 6, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32, independent: 32, independent conditional: 6, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, independent: 23, independent conditional: 5, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9, unknown conditional: 1, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 58, Positive conditional cache size: 2, Positive unconditional cache size: 56, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 58, Positive conditional cache size: 2, Positive unconditional cache size: 56, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: 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 7 procedures, 105 locations, 4 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: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 9 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:33:01,632 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...