/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe036.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:21:27,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:21:27,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:21:27,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:21:27,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:21:27,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:21:27,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:21:27,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:21:27,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:21:27,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:21:27,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:21:27,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:21:27,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:21:27,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:21:27,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:21:27,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:21:27,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:21:27,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:21:27,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:21:27,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:21:27,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:21:27,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:21:27,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:21:27,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:21:27,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 23:21:27,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 23:21:27,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 23:21:27,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 23:21:27,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 23:21:27,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 23:21:27,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 23:21:27,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 23:21:27,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 23:21:27,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 23:21:27,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 23:21:27,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 23:21:27,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 23:21:27,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 23:21:27,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:21:27,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:21:27,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:21:27,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-05 23:21:27,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:21:27,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:21:27,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:21:27,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:21:27,468 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:21:27,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:21:27,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:21:27,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:21:27,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:21:27,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:21:27,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:21:27,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:21:27,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:21:27,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:21:27,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:21:27,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:21:27,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:21:27,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:21:27,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:21:27,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:21:27,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:21:27,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:21:27,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:21:27,829 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:21:27,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036.i [2022-12-05 23:21:28,848 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:21:29,105 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:21:29,105 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i [2022-12-05 23:21:29,134 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c13bf9f/6f64263d34944b3583b73c2953469dd0/FLAGf2ced181a [2022-12-05 23:21:29,150 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c13bf9f/6f64263d34944b3583b73c2953469dd0 [2022-12-05 23:21:29,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:21:29,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:21:29,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:21:29,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:21:29,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:21:29,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c32a1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29, skipping insertion in model container [2022-12-05 23:21:29,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:21:29,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:21:29,376 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/safe036.i[941,954] [2022-12-05 23:21:29,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:21:29,557 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:21:29,567 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/safe036.i[941,954] [2022-12-05 23:21:29,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:21:29,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:21:29,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:21:29,649 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:21:29,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29 WrapperNode [2022-12-05 23:21:29,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:21:29,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:21:29,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:21:29,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:21:29,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,680 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-05 23:21:29,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:21:29,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:21:29,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:21:29,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:21:29,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:21:29,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:21:29,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:21:29,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:21:29,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (1/1) ... [2022-12-05 23:21:29,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:21:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:21:29,744 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) [2022-12-05 23:21:29,752 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 [2022-12-05 23:21:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:21:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 23:21:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 23:21:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 23:21:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:21:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 23:21:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:21:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:21:29,785 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:21:29,881 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:21:29,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:21:30,008 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:21:30,013 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:21:30,013 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:21:30,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:30 BoogieIcfgContainer [2022-12-05 23:21:30,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:21:30,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:21:30,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:21:30,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:21:30,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:21:29" (1/3) ... [2022-12-05 23:21:30,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d755807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:21:30, skipping insertion in model container [2022-12-05 23:21:30,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:29" (2/3) ... [2022-12-05 23:21:30,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d755807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:21:30, skipping insertion in model container [2022-12-05 23:21:30,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:30" (3/3) ... [2022-12-05 23:21:30,022 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-12-05 23:21:30,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:21:30,038 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:21:30,038 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:21:30,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 23:21:30,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2022-12-05 23:21:30,264 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-05 23:21:30,265 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:21:30,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-05 23:21:30,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2022-12-05 23:21:30,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2022-12-05 23:21:30,277 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:21:30,297 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-05 23:21:30,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2022-12-05 23:21:30,330 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-12-05 23:21:30,331 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:21:30,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-05 23:21:30,333 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-05 23:21:30,334 INFO L188 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-05 23:21:32,245 INFO L203 LiptonReduction]: Total number of compositions: 44 [2022-12-05 23:21:32,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:21:32,264 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;@3834401c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:21:32,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 23:21:32,268 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-05 23:21:32,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:21:32,268 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:21:32,268 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 23:21:32,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:21:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:21:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1653656279, now seen corresponding path program 1 times [2022-12-05 23:21:32,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:21:32,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561435741] [2022-12-05 23:21:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:21:32,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:21:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:21:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:21:32,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:21:32,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561435741] [2022-12-05 23:21:32,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561435741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:21:32,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:21:32,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:21:32,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451054965] [2022-12-05 23:21:32,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:21:32,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:21:32,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:21:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:21:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:21:32,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 13 [2022-12-05 23:21:32,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:32,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:21:32,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 13 [2022-12-05 23:21:32,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:21:32,726 INFO L130 PetriNetUnfolder]: 23/62 cut-off events. [2022-12-05 23:21:32,727 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 23:21:32,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 62 events. 23/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 171 event pairs, 5 based on Foata normal form. 9/70 useless extension candidates. Maximal degree in co-relation 122. Up to 31 conditions per place. [2022-12-05 23:21:32,729 INFO L137 encePairwiseOnDemand]: 7/13 looper letters, 13 selfloop transitions, 3 changer transitions 9/27 dead transitions. [2022-12-05 23:21:32,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 27 transitions, 113 flow [2022-12-05 23:21:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:21:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:21:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-12-05 23:21:32,740 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-05 23:21:32,742 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 5 states and 39 transitions. [2022-12-05 23:21:32,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 27 transitions, 113 flow [2022-12-05 23:21:32,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:21:32,746 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 55 flow [2022-12-05 23:21:32,747 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=55, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2022-12-05 23:21:32,750 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-05 23:21:32,750 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:21:32,751 INFO L89 Accepts]: Start accepts. Operand has 24 places, 14 transitions, 55 flow [2022-12-05 23:21:32,753 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:21:32,753 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:21:32,753 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 14 transitions, 55 flow [2022-12-05 23:21:32,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 22 places, 14 transitions, 55 flow [2022-12-05 23:21:32,765 INFO L130 PetriNetUnfolder]: 5/22 cut-off events. [2022-12-05 23:21:32,765 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-05 23:21:32,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 22 events. 5/22 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 2 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 47. Up to 12 conditions per place. [2022-12-05 23:21:32,766 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 14 transitions, 55 flow [2022-12-05 23:21:32,767 INFO L188 LiptonReduction]: Number of co-enabled transitions 44 [2022-12-05 23:21:32,772 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:21:32,774 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 24 [2022-12-05 23:21:32,775 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 55 flow [2022-12-05 23:21:32,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:32,775 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:21:32,775 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:21:32,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:21:32,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:21:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:21:32,780 INFO L85 PathProgramCache]: Analyzing trace with hash 170903413, now seen corresponding path program 1 times [2022-12-05 23:21:32,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:21:32,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744741722] [2022-12-05 23:21:32,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:21:32,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:21:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:21:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:21:32,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:21:32,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744741722] [2022-12-05 23:21:32,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744741722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:21:32,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:21:32,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:21:32,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236911259] [2022-12-05 23:21:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:21:32,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:21:32,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:21:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:21:32,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:21:32,914 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 12 [2022-12-05 23:21:32,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 14 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:32,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:21:32,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 12 [2022-12-05 23:21:32,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:21:32,958 INFO L130 PetriNetUnfolder]: 11/38 cut-off events. [2022-12-05 23:21:32,958 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-05 23:21:32,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 38 events. 11/38 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 3 based on Foata normal form. 5/42 useless extension candidates. Maximal degree in co-relation 104. Up to 16 conditions per place. [2022-12-05 23:21:32,959 INFO L137 encePairwiseOnDemand]: 7/12 looper letters, 11 selfloop transitions, 5 changer transitions 5/23 dead transitions. [2022-12-05 23:21:32,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 127 flow [2022-12-05 23:21:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 23:21:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 23:21:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2022-12-05 23:21:32,961 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-05 23:21:32,961 INFO L175 Difference]: Start difference. First operand has 22 places, 14 transitions, 55 flow. Second operand 6 states and 35 transitions. [2022-12-05 23:21:32,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 127 flow [2022-12-05 23:21:32,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 114 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-05 23:21:32,962 INFO L231 Difference]: Finished difference. Result has 28 places, 14 transitions, 66 flow [2022-12-05 23:21:32,963 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=66, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2022-12-05 23:21:32,963 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2022-12-05 23:21:32,963 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:21:32,964 INFO L89 Accepts]: Start accepts. Operand has 28 places, 14 transitions, 66 flow [2022-12-05 23:21:32,964 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:21:32,964 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:21:32,965 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 14 transitions, 66 flow [2022-12-05 23:21:32,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 14 transitions, 66 flow [2022-12-05 23:21:32,968 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2022-12-05 23:21:32,968 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 23:21:32,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 14 events. 1/14 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 31. Up to 6 conditions per place. [2022-12-05 23:21:32,969 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 14 transitions, 66 flow [2022-12-05 23:21:32,969 INFO L188 LiptonReduction]: Number of co-enabled transitions 28 [2022-12-05 23:21:33,051 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-05 23:21:33,053 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 90 [2022-12-05 23:21:33,053 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 13 transitions, 64 flow [2022-12-05 23:21:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:33,053 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:21:33,053 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:21:33,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 23:21:33,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:21:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:21:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1658326163, now seen corresponding path program 1 times [2022-12-05 23:21:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:21:33,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000540336] [2022-12-05 23:21:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:21:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:21:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:21:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:21:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:21:33,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000540336] [2022-12-05 23:21:33,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000540336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:21:33,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:21:33,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 23:21:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127309795] [2022-12-05 23:21:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:21:33,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 23:21:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:21:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 23:21:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 23:21:33,231 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-05 23:21:33,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 13 transitions, 64 flow. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:33,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:21:33,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-05 23:21:33,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:21:33,281 INFO L130 PetriNetUnfolder]: 16/48 cut-off events. [2022-12-05 23:21:33,282 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-12-05 23:21:33,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 48 events. 16/48 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 6 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 140. Up to 20 conditions per place. [2022-12-05 23:21:33,284 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 13 selfloop transitions, 1 changer transitions 7/21 dead transitions. [2022-12-05 23:21:33,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 147 flow [2022-12-05 23:21:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:21:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:21:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-05 23:21:33,289 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2022-12-05 23:21:33,293 INFO L175 Difference]: Start difference. First operand has 25 places, 13 transitions, 64 flow. Second operand 4 states and 18 transitions. [2022-12-05 23:21:33,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 147 flow [2022-12-05 23:21:33,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 122 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-12-05 23:21:33,295 INFO L231 Difference]: Finished difference. Result has 25 places, 13 transitions, 55 flow [2022-12-05 23:21:33,295 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=25, PETRI_TRANSITIONS=13} [2022-12-05 23:21:33,296 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 6 predicate places. [2022-12-05 23:21:33,296 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:21:33,296 INFO L89 Accepts]: Start accepts. Operand has 25 places, 13 transitions, 55 flow [2022-12-05 23:21:33,297 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:21:33,297 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:21:33,297 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 13 transitions, 55 flow [2022-12-05 23:21:33,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 13 transitions, 55 flow [2022-12-05 23:21:33,300 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-05 23:21:33,300 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 23:21:33,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 16 events. 1/16 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 31. Up to 5 conditions per place. [2022-12-05 23:21:33,301 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 13 transitions, 55 flow [2022-12-05 23:21:33,301 INFO L188 LiptonReduction]: Number of co-enabled transitions 22 [2022-12-05 23:21:33,391 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-05 23:21:33,393 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 97 [2022-12-05 23:21:33,393 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 12 transitions, 58 flow [2022-12-05 23:21:33,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 23:21:33,393 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:21:33,394 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:21:33,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 23:21:33,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:21:33,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:21:33,395 INFO L85 PathProgramCache]: Analyzing trace with hash 172815225, now seen corresponding path program 1 times [2022-12-05 23:21:33,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:21:33,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690810873] [2022-12-05 23:21:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:21:33,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:21:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:21:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:21:33,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:21:33,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690810873] [2022-12-05 23:21:33,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690810873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:21:33,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:21:33,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:21:33,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862275832] [2022-12-05 23:21:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:21:33,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:21:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:21:33,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:21:33,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 23:21:33,519 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 12 [2022-12-05 23:21:33,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 12 transitions, 58 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-05 23:21:33,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:21:33,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 12 [2022-12-05 23:21:33,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:21:33,557 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-12-05 23:21:33,557 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-05 23:21:33,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 30 events. 7/30 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 77 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 98. Up to 17 conditions per place. [2022-12-05 23:21:33,558 INFO L137 encePairwiseOnDemand]: 8/12 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2022-12-05 23:21:33,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 100 flow [2022-12-05 23:21:33,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 23:21:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 23:21:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-05 23:21:33,560 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2022-12-05 23:21:33,560 INFO L175 Difference]: Start difference. First operand has 23 places, 12 transitions, 58 flow. Second operand 4 states and 16 transitions. [2022-12-05 23:21:33,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 100 flow [2022-12-05 23:21:33,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 87 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 23:21:33,561 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-05 23:21:33,562 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-05 23:21:33,563 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2022-12-05 23:21:33,564 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:21:33,564 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2022-12-05 23:21:33,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-05 23:21:33,565 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 23:21:33,565 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:21:33,566 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. [2022-12-05 23:21:33,566 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-05 23:21:33,566 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-05 23:21:33,566 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:21:33,575 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-05 23:21:33,575 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-05 23:21:33,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-05 23:21:33,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 23:21:33,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 23:21:33,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 23:21:33,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 23:21:33,578 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-05 23:21:33,582 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:21:33,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:21:33,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:21:33 BasicIcfg [2022-12-05 23:21:33,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:21:33,585 INFO L158 Benchmark]: Toolchain (without parser) took 4430.75ms. Allocated memory was 192.9MB in the beginning and 272.6MB in the end (delta: 79.7MB). Free memory was 157.0MB in the beginning and 131.1MB in the end (delta: 25.9MB). Peak memory consumption was 106.1MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,585 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory is still 170.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:21:33,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.29ms. Allocated memory is still 192.9MB. Free memory was 157.0MB in the beginning and 134.4MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.23ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,586 INFO L158 Benchmark]: Boogie Preprocessor took 32.77ms. Allocated memory is still 192.9MB. Free memory was 132.3MB in the beginning and 130.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,586 INFO L158 Benchmark]: RCFGBuilder took 300.48ms. Allocated memory is still 192.9MB. Free memory was 130.8MB in the beginning and 118.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,586 INFO L158 Benchmark]: TraceAbstraction took 3567.64ms. Allocated memory was 192.9MB in the beginning and 272.6MB in the end (delta: 79.7MB). Free memory was 117.7MB in the beginning and 131.1MB in the end (delta: -13.5MB). Peak memory consumption was 67.3MB. Max. memory is 8.0GB. [2022-12-05 23:21:33,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory is still 170.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 493.29ms. Allocated memory is still 192.9MB. Free memory was 157.0MB in the beginning and 134.4MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.23ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.77ms. Allocated memory is still 192.9MB. Free memory was 132.3MB in the beginning and 130.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 300.48ms. Allocated memory is still 192.9MB. Free memory was 130.8MB in the beginning and 118.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3567.64ms. Allocated memory was 192.9MB in the beginning and 272.6MB in the end (delta: 79.7MB). Free memory was 117.7MB in the beginning and 131.1MB in the end (delta: -13.5MB). Peak memory consumption was 67.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 62 PlacesBefore, 19 PlacesAfterwards, 56 TransitionsBefore, 13 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 383, independent: 354, independent conditional: 354, independent unconditional: 0, dependent: 29, dependent conditional: 29, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 383, independent: 354, independent conditional: 0, independent unconditional: 354, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 383, independent: 354, independent conditional: 0, independent unconditional: 354, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 383, independent: 354, independent conditional: 0, independent unconditional: 354, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 341, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 341, independent: 315, independent conditional: 0, independent unconditional: 315, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 383, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 341, unknown conditional: 0, unknown unconditional: 341] , Statistics on independence cache: Total cache size (in pairs): 495, Positive cache size: 473, Positive conditional cache size: 0, Positive unconditional cache size: 473, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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: 0.0s, 22 PlacesBefore, 22 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 19, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, 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: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 25 PlacesAfterwards, 14 TransitionsBefore, 13 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, independent: 20, independent conditional: 20, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 36, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 16, dependent conditional: 0, dependent unconditional: 16, 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: 36, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 24 PlacesBefore, 23 PlacesAfterwards, 13 TransitionsBefore, 12 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, independent: 13, independent conditional: 13, 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: 19, independent: 13, independent conditional: 6, independent unconditional: 7, 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: 19, independent: 13, independent conditional: 6, independent unconditional: 7, 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: 19, independent: 13, independent conditional: 6, independent unconditional: 7, 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: 7, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, independent: 8, independent conditional: 1, independent unconditional: 7, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 7, unknown conditional: 5, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 14, Positive conditional cache size: 5, Positive unconditional cache size: 9, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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: 0.0s, 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): 20, Positive cache size: 14, Positive conditional cache size: 5, Positive unconditional cache size: 9, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 5 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 0.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-12-05 23:21:33,609 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...