/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 11:12:49,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:12:49,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:12:49,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:12:49,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:12:49,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:12:49,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:12:49,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:12:49,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:12:49,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:12:49,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:12:49,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:12:49,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:12:49,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:12:49,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:12:49,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:12:49,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:12:49,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:12:49,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:12:49,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:12:49,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:12:49,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:12:49,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:12:49,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:12:49,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 11:12:49,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:12:49,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:12:49,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:12:49,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:12:49,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:12:49,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:12:49,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:12:49,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:12:49,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:12:49,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:12:49,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:12:49,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-13 11:12:50,018 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:12:50,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:12:50,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:12:50,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:12:50,020 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:12:50,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:12:50,021 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:12:50,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:12:50,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:12:50,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:12:50,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:12:50,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:12:50,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 11:12:50,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:12:50,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:12:50,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 11:12:50,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 11:12:50,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:12:50,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:12:50,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:12:50,301 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:12:50,301 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:12:50,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-13 11:12:51,301 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:12:51,509 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:12:51,509 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-13 11:12:51,522 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfcb31f0/69c6eeeee5134c2b964a888f151e7cee/FLAG8c0dd682f [2022-12-13 11:12:51,533 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfcb31f0/69c6eeeee5134c2b964a888f151e7cee [2022-12-13 11:12:51,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:12:51,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 11:12:51,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:12:51,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:12:51,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:12:51,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:12:51" (1/1) ... [2022-12-13 11:12:51,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de27cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:51, skipping insertion in model container [2022-12-13 11:12:51,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:12:51" (1/1) ... [2022-12-13 11:12:51,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:12:51,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:12:51,922 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-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-13 11:12:51,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:12:51,943 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:12:51,981 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-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-13 11:12:51,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:12:52,028 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:12:52,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52 WrapperNode [2022-12-13 11:12:52,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:12:52,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:12:52,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:12:52,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:12:52,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,100 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-12-13 11:12:52,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:12:52,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:12:52,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:12:52,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:12:52,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:12:52,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:12:52,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:12:52,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:12:52,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (1/1) ... [2022-12-13 11:12:52,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:12:52,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:12:52,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:12:52,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:12:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:12:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:12:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:12:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:12:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:12:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:12:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:12:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:12:52,230 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 11:12:52,385 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 11:12:52,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:12:52,675 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 11:12:52,680 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:12:52,680 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 11:12:52,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:12:52 BoogieIcfgContainer [2022-12-13 11:12:52,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:12:52,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:12:52,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:12:52,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:12:52,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:12:51" (1/3) ... [2022-12-13 11:12:52,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16302a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:12:52, skipping insertion in model container [2022-12-13 11:12:52,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:12:52" (2/3) ... [2022-12-13 11:12:52,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16302a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:12:52, skipping insertion in model container [2022-12-13 11:12:52,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:12:52" (3/3) ... [2022-12-13 11:12:52,702 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2022-12-13 11:12:52,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:12:52,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:12:52,732 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:12:52,920 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:12:52,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 131 transitions, 278 flow [2022-12-13 11:12:53,059 INFO L130 PetriNetUnfolder]: 10/129 cut-off events. [2022-12-13 11:12:53,060 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:12:53,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 10/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 3 conditions per place. [2022-12-13 11:12:53,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 131 transitions, 278 flow [2022-12-13 11:12:53,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 118 transitions, 248 flow [2022-12-13 11:12:53,073 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:12:53,099 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-13 11:12:53,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 248 flow [2022-12-13 11:12:53,149 INFO L130 PetriNetUnfolder]: 8/118 cut-off events. [2022-12-13 11:12:53,150 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:12:53,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 118 events. 8/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-12-13 11:12:53,156 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-13 11:12:53,156 INFO L226 LiptonReduction]: Number of co-enabled transitions 1922 [2022-12-13 11:12:59,242 INFO L241 LiptonReduction]: Total number of compositions: 93 [2022-12-13 11:12:59,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:12:59,262 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;@44b67cdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 11:12:59,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 11:12:59,267 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2022-12-13 11:12:59,267 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:12:59,267 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:12:59,269 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:12:59,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:12:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:12:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash 228985984, now seen corresponding path program 1 times [2022-12-13 11:12:59,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:12:59,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827276607] [2022-12-13 11:12:59,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:12:59,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:12:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:12:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:12:59,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:12:59,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827276607] [2022-12-13 11:12:59,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827276607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:12:59,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:12:59,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:12:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611474274] [2022-12-13 11:12:59,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:12:59,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:12:59,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:12:59,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:12:59,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:12:59,606 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2022-12-13 11:12:59,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:12:59,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:12:59,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2022-12-13 11:12:59,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:12:59,707 INFO L130 PetriNetUnfolder]: 189/410 cut-off events. [2022-12-13 11:12:59,707 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 11:12:59,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 410 events. 189/410 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1851 event pairs, 72 based on Foata normal form. 24/368 useless extension candidates. Maximal degree in co-relation 672. Up to 194 conditions per place. [2022-12-13 11:12:59,710 INFO L137 encePairwiseOnDemand]: 26/31 looper letters, 32 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2022-12-13 11:12:59,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 167 flow [2022-12-13 11:12:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:12:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:12:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2022-12-13 11:12:59,719 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2022-12-13 11:12:59,720 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 74 flow. Second operand 3 states and 63 transitions. [2022-12-13 11:12:59,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 167 flow [2022-12-13 11:12:59,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 157 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:12:59,724 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,725 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2022-12-13 11:12:59,728 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-13 11:12:59,728 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:12:59,728 INFO L89 Accepts]: Start accepts. Operand has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,730 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:12:59,731 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:12:59,731 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,736 INFO L130 PetriNetUnfolder]: 5/37 cut-off events. [2022-12-13 11:12:59,736 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:12:59,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 5/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2022-12-13 11:12:59,739 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,739 INFO L226 LiptonReduction]: Number of co-enabled transitions 346 [2022-12-13 11:12:59,767 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:12:59,768 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 40 [2022-12-13 11:12:59,768 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 74 flow [2022-12-13 11:12:59,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:12:59,768 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:12:59,769 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:12:59,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:12:59,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:12:59,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:12:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1986141756, now seen corresponding path program 1 times [2022-12-13 11:12:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:12:59,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523977887] [2022-12-13 11:12:59,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:12:59,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:12:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:12:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:12:59,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:12:59,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523977887] [2022-12-13 11:12:59,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523977887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:12:59,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:12:59,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:12:59,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481617864] [2022-12-13 11:12:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:12:59,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:12:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:12:59,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:12:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:12:59,864 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-13 11:12:59,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:12:59,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:12:59,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-13 11:12:59,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:12:59,948 INFO L130 PetriNetUnfolder]: 297/632 cut-off events. [2022-12-13 11:12:59,948 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-12-13 11:12:59,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 632 events. 297/632 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3033 event pairs, 117 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 384. Up to 299 conditions per place. [2022-12-13 11:12:59,954 INFO L137 encePairwiseOnDemand]: 26/29 looper letters, 34 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2022-12-13 11:12:59,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 185 flow [2022-12-13 11:12:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:12:59,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:12:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-12-13 11:12:59,956 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298 [2022-12-13 11:12:59,956 INFO L175 Difference]: Start difference. First operand has 31 places, 30 transitions, 74 flow. Second operand 3 states and 59 transitions. [2022-12-13 11:12:59,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 185 flow [2022-12-13 11:12:59,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 44 transitions, 181 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:12:59,957 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,958 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-12-13 11:12:59,958 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-13 11:12:59,958 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:12:59,959 INFO L89 Accepts]: Start accepts. Operand has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,960 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:12:59,960 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:12:59,960 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,966 INFO L130 PetriNetUnfolder]: 6/45 cut-off events. [2022-12-13 11:12:59,966 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:12:59,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 45 events. 6/45 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2022-12-13 11:12:59,967 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,967 INFO L226 LiptonReduction]: Number of co-enabled transitions 374 [2022-12-13 11:12:59,972 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:12:59,973 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-13 11:12:59,973 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 84 flow [2022-12-13 11:12:59,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:12:59,974 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:12:59,974 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:12:59,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:12:59,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:12:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:12:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 311444521, now seen corresponding path program 1 times [2022-12-13 11:12:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:12:59,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352320287] [2022-12-13 11:12:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:12:59,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:12:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:00,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:00,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352320287] [2022-12-13 11:13:00,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352320287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:00,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:13:00,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:13:00,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504198018] [2022-12-13 11:13:00,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:00,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:13:00,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:00,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:13:00,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:13:00,079 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2022-12-13 11:13:00,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:00,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:00,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2022-12-13 11:13:00,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:00,181 INFO L130 PetriNetUnfolder]: 285/664 cut-off events. [2022-12-13 11:13:00,181 INFO L131 PetriNetUnfolder]: For 147/147 co-relation queries the response was YES. [2022-12-13 11:13:00,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 664 events. 285/664 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3328 event pairs, 105 based on Foata normal form. 64/700 useless extension candidates. Maximal degree in co-relation 397. Up to 264 conditions per place. [2022-12-13 11:13:00,184 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 24 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2022-12-13 11:13:00,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 181 flow [2022-12-13 11:13:00,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:13:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:13:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-13 11:13:00,185 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2022-12-13 11:13:00,185 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 84 flow. Second operand 3 states and 54 transitions. [2022-12-13 11:13:00,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 181 flow [2022-12-13 11:13:00,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:13:00,186 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 102 flow [2022-12-13 11:13:00,186 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2022-12-13 11:13:00,187 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-13 11:13:00,187 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:13:00,187 INFO L89 Accepts]: Start accepts. Operand has 34 places, 31 transitions, 102 flow [2022-12-13 11:13:00,188 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:13:00,188 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:00,188 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 31 transitions, 102 flow [2022-12-13 11:13:00,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 102 flow [2022-12-13 11:13:00,195 INFO L130 PetriNetUnfolder]: 33/147 cut-off events. [2022-12-13 11:13:00,196 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 11:13:00,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 147 events. 33/147 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 570 event pairs, 9 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 220. Up to 33 conditions per place. [2022-12-13 11:13:00,197 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 31 transitions, 102 flow [2022-12-13 11:13:00,197 INFO L226 LiptonReduction]: Number of co-enabled transitions 212 [2022-12-13 11:13:00,353 INFO L241 LiptonReduction]: Total number of compositions: 6 [2022-12-13 11:13:00,355 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 168 [2022-12-13 11:13:00,355 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 94 flow [2022-12-13 11:13:00,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:00,355 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:13:00,356 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:00,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:13:00,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:13:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1243613186, now seen corresponding path program 1 times [2022-12-13 11:13:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:00,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135264644] [2022-12-13 11:13:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:00,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:00,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135264644] [2022-12-13 11:13:00,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135264644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:00,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711420900] [2022-12-13 11:13:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:00,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:00,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:13:00,427 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) [2022-12-13 11:13:00,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:13:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:00,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:13:00,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:00,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:13:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711420900] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:13:00,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:13:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 11:13:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127516947] [2022-12-13 11:13:00,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:13:00,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:13:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:13:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:13:00,593 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-13 11:13:00,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:00,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:00,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-13 11:13:00,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:00,713 INFO L130 PetriNetUnfolder]: 433/890 cut-off events. [2022-12-13 11:13:00,713 INFO L131 PetriNetUnfolder]: For 273/281 co-relation queries the response was YES. [2022-12-13 11:13:00,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 890 events. 433/890 cut-off events. For 273/281 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4304 event pairs, 65 based on Foata normal form. 70/956 useless extension candidates. Maximal degree in co-relation 726. Up to 222 conditions per place. [2022-12-13 11:13:00,717 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 68 selfloop transitions, 6 changer transitions 1/79 dead transitions. [2022-12-13 11:13:00,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 79 transitions, 438 flow [2022-12-13 11:13:00,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:13:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:13:00,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2022-12-13 11:13:00,718 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-13 11:13:00,718 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 94 flow. Second operand 6 states and 102 transitions. [2022-12-13 11:13:00,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 79 transitions, 438 flow [2022-12-13 11:13:00,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 79 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:13:00,722 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 127 flow [2022-12-13 11:13:00,722 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-13 11:13:00,722 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 11:13:00,722 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:13:00,723 INFO L89 Accepts]: Start accepts. Operand has 38 places, 30 transitions, 127 flow [2022-12-13 11:13:00,723 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:13:00,723 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:00,724 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 127 flow [2022-12-13 11:13:00,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 127 flow [2022-12-13 11:13:00,735 INFO L130 PetriNetUnfolder]: 71/227 cut-off events. [2022-12-13 11:13:00,735 INFO L131 PetriNetUnfolder]: For 66/70 co-relation queries the response was YES. [2022-12-13 11:13:00,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 227 events. 71/227 cut-off events. For 66/70 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 980 event pairs, 24 based on Foata normal form. 3/196 useless extension candidates. Maximal degree in co-relation 385. Up to 69 conditions per place. [2022-12-13 11:13:00,736 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 127 flow [2022-12-13 11:13:00,736 INFO L226 LiptonReduction]: Number of co-enabled transitions 202 [2022-12-13 11:13:00,797 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [439] L878-2-->L880-2: Formula: (let ((.cse0 (select |v_#pthreadsMutex_174| |v_~#m~0.base_103|))) (and (= (store |v_#pthreadsMutex_174| |v_~#m~0.base_103| (store .cse0 |v_~#m~0.offset_103| 1)) |v_#pthreadsMutex_173|) (= (select .cse0 |v_~#m~0.offset_103|) 0) (< v_thread1Thread1of1ForFork0_~i~0_63 4))) InVars {#pthreadsMutex=|v_#pthreadsMutex_174|, ~#m~0.base=|v_~#m~0.base_103|, ~#m~0.offset=|v_~#m~0.offset_103|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_63} OutVars{thread1Thread1of1ForFork0_#t~nondet4=|v_thread1Thread1of1ForFork0_#t~nondet4_19|, #pthreadsMutex=|v_#pthreadsMutex_173|, ~#m~0.base=|v_~#m~0.base_103|, ~#m~0.offset=|v_~#m~0.offset_103|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_63} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~nondet4, #pthreadsMutex] and [402] L883-->L878-2: Formula: (and (= (+ v_thread1Thread1of1ForFork0_~i~0_30 1) v_thread1Thread1of1ForFork0_~i~0_29) (= |v_#pthreadsMutex_83| (store |v_#pthreadsMutex_84| |v_~#m~0.base_55| (store (select |v_#pthreadsMutex_84| |v_~#m~0.base_55|) |v_~#m~0.offset_55| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_84|, ~#m~0.base=|v_~#m~0.base_55|, ~#m~0.offset=|v_~#m~0.offset_55|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_30} OutVars{#pthreadsMutex=|v_#pthreadsMutex_83|, ~#m~0.base=|v_~#m~0.base_55|, ~#m~0.offset=|v_~#m~0.offset_55|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_29, thread1Thread1of1ForFork0_#t~post7=|v_thread1Thread1of1ForFork0_#t~post7_17|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_#t~post7] [2022-12-13 11:13:00,842 INFO L241 LiptonReduction]: Total number of compositions: 5 [2022-12-13 11:13:00,843 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 121 [2022-12-13 11:13:00,843 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 126 flow [2022-12-13 11:13:00,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:00,843 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:13:00,843 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:00,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 11:13:01,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:01,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:13:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1858401040, now seen corresponding path program 1 times [2022-12-13 11:13:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427359604] [2022-12-13 11:13:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:01,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 11:13:01,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:01,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427359604] [2022-12-13 11:13:01,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427359604] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:01,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702462769] [2022-12-13 11:13:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:01,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:01,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:13:01,105 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) [2022-12-13 11:13:01,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:13:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:01,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:13:01,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 11:13:01,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:13:01,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702462769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:01,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:13:01,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-13 11:13:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971369174] [2022-12-13 11:13:01,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:01,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:13:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:13:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:13:01,233 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-13 11:13:01,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:01,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:01,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-13 11:13:01,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:01,328 INFO L130 PetriNetUnfolder]: 421/756 cut-off events. [2022-12-13 11:13:01,328 INFO L131 PetriNetUnfolder]: For 497/497 co-relation queries the response was YES. [2022-12-13 11:13:01,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 756 events. 421/756 cut-off events. For 497/497 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2823 event pairs, 98 based on Foata normal form. 54/778 useless extension candidates. Maximal degree in co-relation 1440. Up to 413 conditions per place. [2022-12-13 11:13:01,333 INFO L137 encePairwiseOnDemand]: 18/26 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2022-12-13 11:13:01,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 262 flow [2022-12-13 11:13:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:13:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:13:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-12-13 11:13:01,334 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2022-12-13 11:13:01,334 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 126 flow. Second operand 4 states and 46 transitions. [2022-12-13 11:13:01,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 262 flow [2022-12-13 11:13:01,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 252 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-13 11:13:01,337 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 152 flow [2022-12-13 11:13:01,337 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2022-12-13 11:13:01,337 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 11:13:01,338 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:13:01,338 INFO L89 Accepts]: Start accepts. Operand has 38 places, 29 transitions, 152 flow [2022-12-13 11:13:01,339 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:13:01,339 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:01,339 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 152 flow [2022-12-13 11:13:01,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 152 flow [2022-12-13 11:13:01,369 INFO L130 PetriNetUnfolder]: 59/179 cut-off events. [2022-12-13 11:13:01,369 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2022-12-13 11:13:01,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 179 events. 59/179 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 534 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 412. Up to 64 conditions per place. [2022-12-13 11:13:01,371 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 152 flow [2022-12-13 11:13:01,371 INFO L226 LiptonReduction]: Number of co-enabled transitions 148 [2022-12-13 11:13:01,392 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 11:13:01,393 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 55 [2022-12-13 11:13:01,393 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 156 flow [2022-12-13 11:13:01,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:01,393 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:13:01,393 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:01,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 11:13:01,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:01,598 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:13:01,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:01,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1546417687, now seen corresponding path program 1 times [2022-12-13 11:13:01,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:01,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950405339] [2022-12-13 11:13:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:01,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:01,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950405339] [2022-12-13 11:13:01,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950405339] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:01,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613336171] [2022-12-13 11:13:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:01,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:01,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:13:01,686 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) [2022-12-13 11:13:01,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:13:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:01,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:13:01,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:01,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:13:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:01,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613336171] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:13:01,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:13:01,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-12-13 11:13:01,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102233744] [2022-12-13 11:13:01,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:13:01,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:13:01,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:13:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:13:01,894 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-13 11:13:01,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:01,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:01,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-13 11:13:01,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:02,053 INFO L130 PetriNetUnfolder]: 745/1354 cut-off events. [2022-12-13 11:13:02,054 INFO L131 PetriNetUnfolder]: For 1121/1121 co-relation queries the response was YES. [2022-12-13 11:13:02,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4252 conditions, 1354 events. 745/1354 cut-off events. For 1121/1121 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6191 event pairs, 148 based on Foata normal form. 144/1438 useless extension candidates. Maximal degree in co-relation 3261. Up to 410 conditions per place. [2022-12-13 11:13:02,061 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 71 selfloop transitions, 10 changer transitions 3/84 dead transitions. [2022-12-13 11:13:02,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 84 transitions, 644 flow [2022-12-13 11:13:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:13:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:13:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2022-12-13 11:13:02,064 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 11:13:02,064 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 156 flow. Second operand 6 states and 78 transitions. [2022-12-13 11:13:02,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 84 transitions, 644 flow [2022-12-13 11:13:02,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 84 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:13:02,068 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 235 flow [2022-12-13 11:13:02,068 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2022-12-13 11:13:02,070 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2022-12-13 11:13:02,070 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:13:02,070 INFO L89 Accepts]: Start accepts. Operand has 46 places, 34 transitions, 235 flow [2022-12-13 11:13:02,073 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:13:02,073 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:02,073 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 235 flow [2022-12-13 11:13:02,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 34 transitions, 235 flow [2022-12-13 11:13:02,104 INFO L130 PetriNetUnfolder]: 142/393 cut-off events. [2022-12-13 11:13:02,104 INFO L131 PetriNetUnfolder]: For 534/545 co-relation queries the response was YES. [2022-12-13 11:13:02,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 393 events. 142/393 cut-off events. For 534/545 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1832 event pairs, 0 based on Foata normal form. 3/372 useless extension candidates. Maximal degree in co-relation 1117. Up to 142 conditions per place. [2022-12-13 11:13:02,107 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 235 flow [2022-12-13 11:13:02,107 INFO L226 LiptonReduction]: Number of co-enabled transitions 170 [2022-12-13 11:13:02,131 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 11:13:02,132 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 62 [2022-12-13 11:13:02,132 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 233 flow [2022-12-13 11:13:02,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:02,132 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:13:02,132 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:02,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:13:02,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:02,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:13:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1439132443, now seen corresponding path program 1 times [2022-12-13 11:13:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93381983] [2022-12-13 11:13:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 11:13:02,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:02,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93381983] [2022-12-13 11:13:02,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93381983] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:02,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667246192] [2022-12-13 11:13:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:02,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:02,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:13:02,516 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) [2022-12-13 11:13:02,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:13:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:02,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:13:02,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:13:02,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:13:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:13:02,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667246192] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:13:02,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:13:02,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-12-13 11:13:02,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880466699] [2022-12-13 11:13:02,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:13:02,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:13:02,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:02,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:13:02,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:13:02,717 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-13 11:13:02,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:02,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:02,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-13 11:13:02,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:02,793 INFO L130 PetriNetUnfolder]: 187/368 cut-off events. [2022-12-13 11:13:02,793 INFO L131 PetriNetUnfolder]: For 647/647 co-relation queries the response was YES. [2022-12-13 11:13:02,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 368 events. 187/368 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1118 event pairs, 58 based on Foata normal form. 42/410 useless extension candidates. Maximal degree in co-relation 792. Up to 207 conditions per place. [2022-12-13 11:13:02,795 INFO L137 encePairwiseOnDemand]: 17/25 looper letters, 29 selfloop transitions, 9 changer transitions 1/39 dead transitions. [2022-12-13 11:13:02,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 306 flow [2022-12-13 11:13:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:13:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:13:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-12-13 11:13:02,797 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39 [2022-12-13 11:13:02,797 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 233 flow. Second operand 4 states and 39 transitions. [2022-12-13 11:13:02,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 306 flow [2022-12-13 11:13:02,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 297 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 11:13:02,800 INFO L231 Difference]: Finished difference. Result has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,800 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2022-12-13 11:13:02,801 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-12-13 11:13:02,801 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 11:13:02,801 INFO L89 Accepts]: Start accepts. Operand has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,804 INFO L95 Accepts]: Finished accepts. [2022-12-13 11:13:02,804 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:02,804 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,812 INFO L130 PetriNetUnfolder]: 26/98 cut-off events. [2022-12-13 11:13:02,812 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-13 11:13:02,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 98 events. 26/98 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 194 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 245. Up to 29 conditions per place. [2022-12-13 11:13:02,813 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,813 INFO L226 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-13 11:13:02,815 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:13:02,817 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16 [2022-12-13 11:13:02,820 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 27 transitions, 186 flow [2022-12-13 11:13:02,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:02,821 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:13:02,821 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:02,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 11:13:03,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:03,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:13:03,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:03,028 INFO L85 PathProgramCache]: Analyzing trace with hash 70633181, now seen corresponding path program 2 times [2022-12-13 11:13:03,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:03,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793560554] [2022-12-13 11:13:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:03,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:13:03,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:03,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793560554] [2022-12-13 11:13:03,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793560554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:03,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466684517] [2022-12-13 11:13:03,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:13:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 11:13:03,364 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) [2022-12-13 11:13:03,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:13:03,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:13:03,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:13:03,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 11:13:03,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:03,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:13:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:13:04,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466684517] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:13:04,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:13:04,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2022-12-13 11:13:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878282621] [2022-12-13 11:13:04,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:13:04,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 11:13:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:04,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 11:13:04,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:13:04,797 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-13 11:13:04,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 27 transitions, 186 flow. Second operand has 23 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:04,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:13:04,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-13 11:13:04,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:13:05,245 INFO L130 PetriNetUnfolder]: 169/337 cut-off events. [2022-12-13 11:13:05,245 INFO L131 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2022-12-13 11:13:05,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 337 events. 169/337 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 956 event pairs, 19 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 801. Up to 74 conditions per place. [2022-12-13 11:13:05,246 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-12-13 11:13:05,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 450 flow [2022-12-13 11:13:05,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:13:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 11:13:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 61 transitions. [2022-12-13 11:13:05,247 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.27111111111111114 [2022-12-13 11:13:05,247 INFO L175 Difference]: Start difference. First operand has 47 places, 27 transitions, 186 flow. Second operand 9 states and 61 transitions. [2022-12-13 11:13:05,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 450 flow [2022-12-13 11:13:05,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:13:05,249 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2022-12-13 11:13:05,249 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2022-12-13 11:13:05,250 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2022-12-13 11:13:05,250 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 11:13:05,250 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 0 transitions, 0 flow [2022-12-13 11:13:05,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 11:13:05,250 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:13:05,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:13:05,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 11:13:05,251 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 11:13:05,251 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 11:13:05,251 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 11:13:05,251 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 11:13:05,251 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 11:13:05,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:13:05,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 11:13:05,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 11:13:05,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 11:13:05,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 11:13:05,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:05,460 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:13:05,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:13:05,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:13:05,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:13:05 BasicIcfg [2022-12-13 11:13:05,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:13:05,464 INFO L158 Benchmark]: Toolchain (without parser) took 13929.04ms. Allocated memory was 174.1MB in the beginning and 339.7MB in the end (delta: 165.7MB). Free memory was 132.6MB in the beginning and 219.5MB in the end (delta: -86.9MB). Peak memory consumption was 79.3MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory was 150.3MB in the beginning and 150.3MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.75ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 105.9MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.56ms. Allocated memory is still 174.1MB. Free memory was 105.9MB in the beginning and 103.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: Boogie Preprocessor took 24.93ms. Allocated memory is still 174.1MB. Free memory was 103.3MB in the beginning and 101.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: RCFGBuilder took 555.18ms. Allocated memory is still 174.1MB. Free memory was 101.7MB in the beginning and 84.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,465 INFO L158 Benchmark]: TraceAbstraction took 12780.72ms. Allocated memory was 174.1MB in the beginning and 339.7MB in the end (delta: 165.7MB). Free memory was 83.9MB in the beginning and 219.8MB in the end (delta: -135.9MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. [2022-12-13 11:13:05,466 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 174.1MB. Free memory was 150.3MB in the beginning and 150.3MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 493.75ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 105.9MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.56ms. Allocated memory is still 174.1MB. Free memory was 105.9MB in the beginning and 103.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.93ms. Allocated memory is still 174.1MB. Free memory was 103.3MB in the beginning and 101.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 555.18ms. Allocated memory is still 174.1MB. Free memory was 101.7MB in the beginning and 84.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 12780.72ms. Allocated memory was 174.1MB in the beginning and 339.7MB in the end (delta: 165.7MB). Free memory was 83.9MB in the beginning and 219.8MB in the end (delta: -135.9MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 117 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 31 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 53 TrivialYvCompositions, 32 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 1373, independent unconditional: 0, dependent: 69, dependent conditional: 69, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1207, independent: 1179, independent conditional: 0, independent unconditional: 1179, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1207, independent: 1179, independent conditional: 0, independent unconditional: 1179, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1207, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1442, independent: 194, independent conditional: 194, independent unconditional: 0, dependent: 41, dependent conditional: 41, dependent unconditional: 0, unknown: 1207, unknown conditional: 1207, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1219, Positive cache size: 1191, Positive conditional cache size: 1191, Positive unconditional cache size: 0, Negative cache size: 28, Negative conditional cache size: 28, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 151, independent: 129, independent conditional: 129, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 133, independent: 114, independent conditional: 4, independent unconditional: 110, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 133, independent: 114, independent conditional: 4, independent unconditional: 110, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 133, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 22, dependent conditional: 1, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 151, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 133, unknown conditional: 133, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 114, Positive conditional cache size: 114, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 149, independent: 125, independent conditional: 125, independent unconditional: 0, dependent: 24, dependent conditional: 24, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, independent: 22, independent conditional: 2, independent unconditional: 20, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 22, independent conditional: 2, independent unconditional: 20, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 149, independent: 103, independent conditional: 103, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 136, Positive conditional cache size: 136, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 34 PlacesBefore, 30 PlacesAfterwards, 31 TransitionsBefore, 27 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, independent: 35, independent conditional: 35, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, 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: 23, independent: 23, independent conditional: 0, independent unconditional: 23, 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: 35, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 159, Positive conditional cache size: 159, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 38 PlacesBefore, 35 PlacesAfterwards, 30 TransitionsBefore, 27 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, independent: 16, independent conditional: 0, independent unconditional: 16, 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: 16, independent: 16, independent conditional: 0, independent unconditional: 16, 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: 25, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 175, Positive conditional cache size: 175, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, 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: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 180, Positive conditional cache size: 180, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 46 PlacesBefore, 45 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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: 5, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 182, Positive conditional cache size: 182, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: 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: 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: 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): 203, Positive cache size: 182, Positive conditional cache size: 182, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: 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: 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: 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): 203, Positive cache size: 182, Positive conditional cache size: 182, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 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: 12.5s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1217 IncrementalHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 0 mSDtfsCounter, 1217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 206 SyntacticMatches, 12 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=6, InterpolantAutomatonStates: 38, 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, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 396 ConstructedInterpolants, 21 QuantifiedInterpolants, 2588 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1611 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 147/312 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:13:05,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...