/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_safe-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:44:47,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:44:47,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:44:47,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:44:47,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:44:47,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:44:47,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:44:47,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:44:47,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:44:47,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:44:47,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:44:47,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:44:47,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:44:47,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:44:47,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:44:47,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:44:47,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:44:47,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:44:47,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:44:47,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:44:47,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:44:47,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:44:47,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:44:47,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:44:47,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:44:47,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:44:47,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:44:47,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:44:47,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:44:47,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:44:47,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:44:47,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:44:47,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:44:47,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:44:47,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:44:47,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:44:47,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:44:47,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:44:47,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:44:47,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:44:47,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:44:47,087 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 [2022-12-06 00:44:47,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:44:47,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:44:47,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:44:47,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:44:47,121 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:44:47,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:44:47,121 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:44:47,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:44:47,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:44:47,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:44:47,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:44:47,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:44:47,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:44:47,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:44:47,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:44:47,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:44:47,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 00:44:47,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:44:47,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:44:47,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:44:47,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:44:47,411 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:44:47,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-5.i [2022-12-06 00:44:48,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:44:48,502 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:44:48,502 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-5.i [2022-12-06 00:44:48,511 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7192ac164/52d7516bf6b642699095d7a46436296f/FLAG225d7d32e [2022-12-06 00:44:48,520 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7192ac164/52d7516bf6b642699095d7a46436296f [2022-12-06 00:44:48,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:44:48,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:44:48,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:44:48,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:44:48,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:44:48,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182ccc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48, skipping insertion in model container [2022-12-06 00:44:48,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:44:48,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:44:48,758 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/fib_safe-5.i[30241,30254] [2022-12-06 00:44:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:44:48,785 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:44:48,828 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/fib_safe-5.i[30241,30254] [2022-12-06 00:44:48,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:44:48,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:44:48,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:44:48,864 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:44:48,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48 WrapperNode [2022-12-06 00:44:48,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:44:48,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:44:48,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:44:48,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:44:48,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,908 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-12-06 00:44:48,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:44:48,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:44:48,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:44:48,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:44:48,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:44:48,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:44:48,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:44:48,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:44:48,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (1/1) ... [2022-12-06 00:44:48,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:44:48,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:48,973 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 00:44:48,985 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 00:44:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-06 00:44:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-06 00:44:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-06 00:44:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:44:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:44:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:44:49,013 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 00:44:49,147 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:44:49,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:44:49,347 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:44:49,352 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:44:49,352 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 00:44:49,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:44:49 BoogieIcfgContainer [2022-12-06 00:44:49,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:44:49,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:44:49,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:44:49,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:44:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:44:48" (1/3) ... [2022-12-06 00:44:49,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5861f954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:44:49, skipping insertion in model container [2022-12-06 00:44:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:48" (2/3) ... [2022-12-06 00:44:49,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5861f954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:44:49, skipping insertion in model container [2022-12-06 00:44:49,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:44:49" (3/3) ... [2022-12-06 00:44:49,360 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-5.i [2022-12-06 00:44:49,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:44:49,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:44:49,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:44:49,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 00:44:49,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 93 transitions, 196 flow [2022-12-06 00:44:49,501 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2022-12-06 00:44:49,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:44:49,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-06 00:44:49,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 93 transitions, 196 flow [2022-12-06 00:44:49,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 188 flow [2022-12-06 00:44:49,511 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:49,529 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 188 flow [2022-12-06 00:44:49,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 188 flow [2022-12-06 00:44:49,565 INFO L130 PetriNetUnfolder]: 7/91 cut-off events. [2022-12-06 00:44:49,565 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:44:49,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 7/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-06 00:44:49,570 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 188 flow [2022-12-06 00:44:49,570 INFO L188 LiptonReduction]: Number of co-enabled transitions 1914 [2022-12-06 00:44:52,833 INFO L203 LiptonReduction]: Total number of compositions: 77 [2022-12-06 00:44:52,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:44:52,856 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;@1d96ef70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:44:52,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 00:44:52,859 INFO L130 PetriNetUnfolder]: 3/12 cut-off events. [2022-12-06 00:44:52,859 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:44:52,859 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:52,860 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 00:44:52,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:52,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1750465324, now seen corresponding path program 1 times [2022-12-06 00:44:52,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:52,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49733705] [2022-12-06 00:44:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:52,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,036 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 00:44:53,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49733705] [2022-12-06 00:44:53,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49733705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:44:53,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:44:53,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 00:44:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28844574] [2022-12-06 00:44:53,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:44:53,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 00:44:53,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:53,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 00:44:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 00:44:53,074 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:53,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 34 flow. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 00:44:53,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:53,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:53,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:53,148 INFO L130 PetriNetUnfolder]: 97/149 cut-off events. [2022-12-06 00:44:53,149 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:53,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 149 events. 97/149 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 331 event pairs, 20 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 300. Up to 91 conditions per place. [2022-12-06 00:44:53,150 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 18 selfloop transitions, 2 changer transitions 1/21 dead transitions. [2022-12-06 00:44:53,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 90 flow [2022-12-06 00:44:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 00:44:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 00:44:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-12-06 00:44:53,160 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2022-12-06 00:44:53,163 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2022-12-06 00:44:53,164 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:53,164 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 21 transitions, 90 flow [2022-12-06 00:44:53,167 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 21 transitions, 90 flow [2022-12-06 00:44:53,167 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:53,168 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:53,169 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-06 00:44:53,169 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 21 transitions, 90 flow [2022-12-06 00:44:53,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 00:44:53,169 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:53,170 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:53,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:44:53,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:53,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:53,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1570150653, now seen corresponding path program 1 times [2022-12-06 00:44:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:53,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139926724] [2022-12-06 00:44:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139926724] [2022-12-06 00:44:53,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139926724] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:53,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018389417] [2022-12-06 00:44:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:53,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:53,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:53,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 00:44:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-06 00:44:53,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018389417] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:53,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:53,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-06 00:44:53,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559138934] [2022-12-06 00:44:53,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:53,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 00:44:53,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:53,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 00:44:53,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-06 00:44:53,379 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:53,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 21 transitions, 90 flow. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 00:44:53,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:53,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:53,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:53,471 INFO L130 PetriNetUnfolder]: 151/230 cut-off events. [2022-12-06 00:44:53,471 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:53,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 230 events. 151/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 531 event pairs, 20 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 690. Up to 172 conditions per place. [2022-12-06 00:44:53,473 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 36 selfloop transitions, 5 changer transitions 1/42 dead transitions. [2022-12-06 00:44:53,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 42 transitions, 258 flow [2022-12-06 00:44:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 00:44:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 00:44:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2022-12-06 00:44:53,476 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-06 00:44:53,477 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2022-12-06 00:44:53,477 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:53,477 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 42 transitions, 258 flow [2022-12-06 00:44:53,479 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 42 transitions, 258 flow [2022-12-06 00:44:53,479 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:53,479 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:53,480 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-06 00:44:53,480 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 42 transitions, 258 flow [2022-12-06 00:44:53,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 00:44:53,480 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:53,480 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:53,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 00:44:53,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:53,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash 129874156, now seen corresponding path program 2 times [2022-12-06 00:44:53,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:53,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569847143] [2022-12-06 00:44:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569847143] [2022-12-06 00:44:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569847143] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593656622] [2022-12-06 00:44:53,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 00:44:53,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:53,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:53,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:53,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 00:44:53,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 00:44:53,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:44:53,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 00:44:53,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593656622] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:53,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:53,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-06 00:44:53,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524245225] [2022-12-06 00:44:53,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:53,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 00:44:53,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:53,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 00:44:53,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-06 00:44:53,877 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:53,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 42 transitions, 258 flow. Second operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 13 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) [2022-12-06 00:44:53,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:53,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:53,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:54,070 INFO L130 PetriNetUnfolder]: 259/392 cut-off events. [2022-12-06 00:44:54,070 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:54,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 392 events. 259/392 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 926 event pairs, 20 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 1566. Up to 334 conditions per place. [2022-12-06 00:44:54,073 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 72 selfloop transitions, 11 changer transitions 1/84 dead transitions. [2022-12-06 00:44:54,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 84 transitions, 678 flow [2022-12-06 00:44:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 00:44:54,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 00:44:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 96 transitions. [2022-12-06 00:44:54,083 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-06 00:44:54,083 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 18 predicate places. [2022-12-06 00:44:54,083 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:54,084 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 84 transitions, 678 flow [2022-12-06 00:44:54,086 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 84 transitions, 678 flow [2022-12-06 00:44:54,086 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:54,086 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:54,087 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4 [2022-12-06 00:44:54,087 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 84 transitions, 678 flow [2022-12-06 00:44:54,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 13 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) [2022-12-06 00:44:54,087 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:54,088 INFO L213 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:54,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 00:44:54,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-06 00:44:54,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash -339398260, now seen corresponding path program 3 times [2022-12-06 00:44:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:54,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129379126] [2022-12-06 00:44:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:54,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:54,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129379126] [2022-12-06 00:44:54,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129379126] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:54,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971374885] [2022-12-06 00:44:54,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 00:44:54,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:54,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:54,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 00:44:54,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-06 00:44:54,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:44:54,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 00:44:54,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:54,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:54,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971374885] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:54,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:54,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 14 [2022-12-06 00:44:54,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912614396] [2022-12-06 00:44:54,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:54,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 00:44:54,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:54,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 00:44:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-12-06 00:44:54,670 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:54,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 84 transitions, 678 flow. Second operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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 00:44:54,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:54,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:54,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:54,826 INFO L130 PetriNetUnfolder]: 295/446 cut-off events. [2022-12-06 00:44:54,827 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:54,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 446 events. 295/446 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1059 event pairs, 20 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 2226. Up to 388 conditions per place. [2022-12-06 00:44:54,838 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 84 selfloop transitions, 13 changer transitions 1/98 dead transitions. [2022-12-06 00:44:54,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 98 transitions, 986 flow [2022-12-06 00:44:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 00:44:54,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 00:44:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 102 transitions. [2022-12-06 00:44:54,842 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5204081632653061 [2022-12-06 00:44:54,843 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 31 predicate places. [2022-12-06 00:44:54,844 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:54,844 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 98 transitions, 986 flow [2022-12-06 00:44:54,847 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 98 transitions, 986 flow [2022-12-06 00:44:54,847 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:54,857 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:54,858 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-06 00:44:54,858 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 98 transitions, 986 flow [2022-12-06 00:44:54,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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 00:44:54,859 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:54,859 INFO L213 CegarLoopForPetriNet]: trace histogram [12, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:54,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 00:44:55,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:55,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash 255759468, now seen corresponding path program 4 times [2022-12-06 00:44:55,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:55,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396439509] [2022-12-06 00:44:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:55,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:55,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396439509] [2022-12-06 00:44:55,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396439509] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:55,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148697463] [2022-12-06 00:44:55,680 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 00:44:55,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:55,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:55,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:55,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 00:44:55,812 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 00:44:55,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:44:55,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-06 00:44:55,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 55 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:56,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:56,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148697463] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:56,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:56,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 39 [2022-12-06 00:44:56,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239781983] [2022-12-06 00:44:56,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:56,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-06 00:44:56,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:56,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-06 00:44:56,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1321, Unknown=0, NotChecked=0, Total=1640 [2022-12-06 00:44:56,625 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:56,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 98 transitions, 986 flow. Second operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 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 00:44:56,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:56,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:56,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:45:05,938 INFO L130 PetriNetUnfolder]: 14565/21955 cut-off events. [2022-12-06 00:45:05,938 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 00:45:05,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131770 conditions, 21955 events. 14565/21955 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 733. Compared 139583 event pairs, 51 based on Foata normal form. 0/15152 useless extension candidates. Maximal degree in co-relation 131748. Up to 21609 conditions per place. [2022-12-06 00:45:06,110 INFO L137 encePairwiseOnDemand]: 8/14 looper letters, 3045 selfloop transitions, 2147 changer transitions 399/5591 dead transitions. [2022-12-06 00:45:06,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 5591 transitions, 67116 flow [2022-12-06 00:45:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-12-06 00:45:06,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2022-12-06 00:45:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 1244 transitions. [2022-12-06 00:45:06,120 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5623869801084991 [2022-12-06 00:45:06,120 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 188 predicate places. [2022-12-06 00:45:06,121 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:45:06,121 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 5591 transitions, 67116 flow [2022-12-06 00:45:06,286 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 5591 transitions, 67116 flow [2022-12-06 00:45:06,286 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:45:06,300 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:45:06,301 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 181 [2022-12-06 00:45:06,301 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 5591 transitions, 67116 flow [2022-12-06 00:45:06,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 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 00:45:06,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:45:06,301 INFO L213 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:45:06,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 00:45:06,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:45:06,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:45:06,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:45:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash 223199653, now seen corresponding path program 1 times [2022-12-06 00:45:06,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:45:06,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865294477] [2022-12-06 00:45:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:45:06,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:45:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:45:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:45:07,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:45:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865294477] [2022-12-06 00:45:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865294477] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:45:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462711817] [2022-12-06 00:45:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:45:07,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:45:07,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:45:07,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:45:07,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 00:45:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:45:07,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-06 00:45:07,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:45:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 37 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:45:07,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:45:08,109 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:45:08,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462711817] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:45:08,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:45:08,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 45 [2022-12-06 00:45:08,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871252032] [2022-12-06 00:45:08,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:45:08,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-06 00:45:08,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:45:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-06 00:45:08,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=1812, Unknown=0, NotChecked=0, Total=2162 [2022-12-06 00:45:08,112 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:45:08,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 5591 transitions, 67116 flow. Second operand has 47 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 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 00:45:08,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:45:08,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:45:08,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:47:30,756 INFO L130 PetriNetUnfolder]: 164439/247811 cut-off events. [2022-12-06 00:47:30,757 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-06 00:47:31,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734718 conditions, 247811 events. 164439/247811 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 10616. Compared 2173166 event pairs, 411 based on Foata normal form. 0/147879 useless extension candidates. Maximal degree in co-relation 1734693. Up to 247385 conditions per place. [2022-12-06 00:47:32,380 INFO L137 encePairwiseOnDemand]: 8/14 looper letters, 33088 selfloop transitions, 33636 changer transitions 13044/79768 dead transitions. [2022-12-06 00:47:32,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 79768 transitions, 1116776 flow [2022-12-06 00:47:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-12-06 00:47:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2022-12-06 00:47:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 2233 transitions. [2022-12-06 00:47:32,387 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46911764705882353 [2022-12-06 00:47:32,388 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 527 predicate places. [2022-12-06 00:47:32,388 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:47:32,388 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 545 places, 79768 transitions, 1116776 flow [2022-12-06 00:47:37,162 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 545 places, 79768 transitions, 1116776 flow [2022-12-06 00:47:37,163 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:47:37,319 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:47:37,320 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4932 [2022-12-06 00:47:37,320 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 79768 transitions, 1116776 flow [2022-12-06 00:47:37,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 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 00:47:37,320 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:47:37,320 INFO L213 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:47:37,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 00:47:37,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:47:37,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:47:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:47:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2052773131, now seen corresponding path program 1 times [2022-12-06 00:47:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:47:37,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251465222] [2022-12-06 00:47:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:47:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:47:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:47:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:47:38,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:47:38,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251465222] [2022-12-06 00:47:38,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251465222] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:47:38,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356933285] [2022-12-06 00:47:38,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:47:38,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:47:38,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:47:38,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:47:38,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 00:47:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:47:38,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-06 00:47:38,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:47:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 37 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:47:38,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:47:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:47:38,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356933285] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:47:38,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:47:38,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 45 [2022-12-06 00:47:38,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486787770] [2022-12-06 00:47:38,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:47:38,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-06 00:47:38,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:47:38,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-06 00:47:38,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=1812, Unknown=0, NotChecked=0, Total=2162 [2022-12-06 00:47:38,989 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:47:38,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 79768 transitions, 1116776 flow. Second operand has 47 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 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 00:47:38,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:47:38,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:47:38,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 00:54:37,826 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 00:54:37,854 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 00:54:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-12-06 00:54:37,860 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 00:54:37,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 00:54:38,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:54:38,061 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (47states, 0/14 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 137330 conditions, 17162 events (10833/17161 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4024. Compared 143179 event pairs, 20 based on Foata normal form. 0/14845 useless extension candidates. Maximal degree in co-relation 137302. Up to 16675 conditions per place.). [2022-12-06 00:54:38,063 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 00:54:38,063 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 00:54:38,063 INFO L458 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-12-06 00:54:38,065 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 00:54:38,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 00:54:38,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 12:54:38 BasicIcfg [2022-12-06 00:54:38,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 00:54:38,070 INFO L158 Benchmark]: Toolchain (without parser) took 589548.15ms. Allocated memory was 204.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 179.5MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 180.2MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.13ms. Allocated memory is still 204.5MB. Free memory was 179.5MB in the beginning and 159.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 204.5MB. Free memory was 159.0MB in the beginning and 157.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: Boogie Preprocessor took 35.49ms. Allocated memory is still 204.5MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: RCFGBuilder took 408.45ms. Allocated memory is still 204.5MB. Free memory was 155.9MB in the beginning and 141.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 00:54:38,071 INFO L158 Benchmark]: TraceAbstraction took 588714.64ms. Allocated memory was 204.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 141.2MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2022-12-06 00:54:38,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory was 180.4MB in the beginning and 180.2MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 342.13ms. Allocated memory is still 204.5MB. Free memory was 179.5MB in the beginning and 159.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 204.5MB. Free memory was 159.0MB in the beginning and 157.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.49ms. Allocated memory is still 204.5MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 408.45ms. Allocated memory is still 204.5MB. Free memory was 155.9MB in the beginning and 141.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 588714.64ms. Allocated memory was 204.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 141.2MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 91 PlacesBefore, 18 PlacesAfterwards, 91 TransitionsBefore, 14 TransitionsAfterwards, 1914 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 26 TrivialYvCompositions, 47 ConcurrentYvCompositions, 4 ChoiceCompositions, 77 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1122, independent: 1109, independent conditional: 1109, independent unconditional: 0, dependent: 13, dependent conditional: 13, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1122, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1122, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1122, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1096, independent: 1085, independent conditional: 0, independent unconditional: 1085, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1096, independent: 1085, independent conditional: 0, independent unconditional: 1085, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1122, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 1096, unknown conditional: 0, unknown unconditional: 1096] , Statistics on independence cache: Total cache size (in pairs): 1947, Positive cache size: 1936, Positive conditional cache size: 0, Positive unconditional cache size: 1936, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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, 20 PlacesBefore, 20 PlacesAfterwards, 21 TransitionsBefore, 21 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 25 PlacesBefore, 25 PlacesAfterwards, 42 TransitionsBefore, 42 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 36 PlacesBefore, 36 PlacesAfterwards, 84 TransitionsBefore, 84 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 49 PlacesBefore, 49 PlacesAfterwards, 98 TransitionsBefore, 98 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 206 PlacesBefore, 206 PlacesAfterwards, 5591 TransitionsBefore, 5591 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 0.2s, 545 PlacesBefore, 545 PlacesAfterwards, 79768 TransitionsBefore, 79768 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 681]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (47states, 0/14 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 137330 conditions, 17162 events (10833/17161 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4024. Compared 143179 event pairs, 20 based on Foata normal form. 0/14845 useless extension candidates. Maximal degree in co-relation 137302. Up to 16675 conditions per place.). - TimeoutResultAtElement [Line: 720]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (47states, 0/14 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 137330 conditions, 17162 events (10833/17161 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4024. Compared 143179 event pairs, 20 based on Foata normal form. 0/14845 useless extension candidates. Maximal degree in co-relation 137302. Up to 16675 conditions per place.). - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (47states, 0/14 universal loopers) in iteration 7,while PetriNetUnfolder was constructing finite prefix that currently has 137330 conditions, 17162 events (10833/17161 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4024. Compared 143179 event pairs, 20 based on Foata normal form. 0/14845 useless extension candidates. Maximal degree in co-relation 137302. Up to 16675 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 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: 588.6s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 573.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4981 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4981 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8292 IncrementalHoareTripleChecker+Invalid, 9413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1121 mSolverCounterUnsat, 0 mSDtfsCounter, 8292 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 855 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 774 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92961 ImplicationChecksByTransitivity, 35.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116776occurred in iteration=6, InterpolantAutomatonStates: 533, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 3127 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1223 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 129/906 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-12-06 00:54:38,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0