/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:58:52,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:58:52,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:58:52,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:58:52,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:58:52,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:58:52,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:58:52,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:58:52,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:58:52,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:58:52,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:58:52,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:58:52,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:58:52,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:58:52,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:58:52,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:58:52,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:58:52,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:58:52,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:58:52,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:58:52,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:58:52,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:58:52,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:58:52,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:58:52,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 06:58:52,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:58:52,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:58:52,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:58:52,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:58:52,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:58:52,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:58:52,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:58:52,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:58:52,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:58:52,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:58:52,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:58:52,771 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-VariableLbe.epf [2023-01-28 06:58:52,792 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:58:52,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:58:52,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:58:52,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:58:52,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:58:52,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:58:52,794 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:58:52,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:58:52,794 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:58:52,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:58:52,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:58:52,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:58:52,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:58:52,796 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:58:52,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:58:52,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:58:52,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:58:52,969 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:58:52,969 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:58:52,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-28 06:58:53,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:58:54,129 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:58:54,129 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-28 06:58:54,154 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0deb7c9/4bbb056a3d734791889ebac104e862d7/FLAG061878b05 [2023-01-28 06:58:54,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0deb7c9/4bbb056a3d734791889ebac104e862d7 [2023-01-28 06:58:54,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:58:54,168 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:58:54,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:58:54,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:58:54,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:58:54,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c98a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54, skipping insertion in model container [2023-01-28 06:58:54,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:58:54,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:58:54,314 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2023-01-28 06:58:54,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:58:54,434 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:58:54,441 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2023-01-28 06:58:54,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:58:54,493 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:58:54,493 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:58:54,497 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:58:54,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54 WrapperNode [2023-01-28 06:58:54,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:58:54,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:58:54,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:58:54,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:58:54,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,538 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-01-28 06:58:54,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:58:54,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:58:54,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:58:54,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:58:54,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:58:54,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:58:54,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:58:54,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:58:54,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (1/1) ... [2023-01-28 06:58:54,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:58:54,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:58:54,609 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) [2023-01-28 06:58:54,621 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 [2023-01-28 06:58:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:58:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 06:58:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:58:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:58:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:58:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 06:58:54,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 06:58:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 06:58:54,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 06:58:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:58:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 06:58:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:58:54,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:58:54,643 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 06:58:54,786 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:58:54,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:58:55,056 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:58:55,223 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:58:55,223 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 06:58:55,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:58:55 BoogieIcfgContainer [2023-01-28 06:58:55,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:58:55,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:58:55,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:58:55,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:58:55,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:58:54" (1/3) ... [2023-01-28 06:58:55,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9087ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:58:55, skipping insertion in model container [2023-01-28 06:58:55,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:54" (2/3) ... [2023-01-28 06:58:55,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9087ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:58:55, skipping insertion in model container [2023-01-28 06:58:55,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:58:55" (3/3) ... [2023-01-28 06:58:55,232 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-01-28 06:58:55,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:58:55,246 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 06:58:55,246 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:58:55,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:58:55,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-01-28 06:58:55,371 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-28 06:58:55,372 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:55,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-28 06:58:55,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-01-28 06:58:55,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-01-28 06:58:55,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:58:55,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-28 06:58:55,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-28 06:58:55,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-01-28 06:58:55,435 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-28 06:58:55,435 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:55,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-28 06:58:55,437 INFO L119 LiptonReduction]: Number of co-enabled transitions 1244 [2023-01-28 06:58:58,052 INFO L134 LiptonReduction]: Checked pairs total: 4348 [2023-01-28 06:58:58,052 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-01-28 06:58:58,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:58:58,066 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=PETRI_NET, 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;@2d9f9ff1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:58:58,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 06:58:58,068 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-01-28 06:58:58,068 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:58,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:58,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 06:58:58,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:58:58,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1568998742, now seen corresponding path program 1 times [2023-01-28 06:58:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:58,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132037442] [2023-01-28 06:58:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:58:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132037442] [2023-01-28 06:58:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132037442] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:58,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 06:58:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266204183] [2023-01-28 06:58:58,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:58,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:58:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:58,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:58:58,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:58:58,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2023-01-28 06:58:58,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-01-28 06:58:58,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:58,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2023-01-28 06:58:58,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:58,660 INFO L130 PetriNetUnfolder]: 380/639 cut-off events. [2023-01-28 06:58:58,661 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 06:58:58,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1291 conditions, 639 events. 380/639 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2634 event pairs, 90 based on Foata normal form. 35/601 useless extension candidates. Maximal degree in co-relation 1281. Up to 466 conditions per place. [2023-01-28 06:58:58,665 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 4/31 dead transitions. [2023-01-28 06:58:58,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 128 flow [2023-01-28 06:58:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:58:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:58:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-01-28 06:58:58,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207100591715976 [2023-01-28 06:58:58,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-01-28 06:58:58,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-01-28 06:58:58,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:58,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-01-28 06:58:58,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-01-28 06:58:58,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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) [2023-01-28 06:58:58,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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) [2023-01-28 06:58:58,682 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 264 transitions. [2023-01-28 06:58:58,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 128 flow [2023-01-28 06:58:58,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:58:58,685 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2023-01-28 06:58:58,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-01-28 06:58:58,688 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-01-28 06:58:58,688 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2023-01-28 06:58:58,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-01-28 06:58:58,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:58,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:58,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:58:58,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:58:58,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:58,689 INFO L85 PathProgramCache]: Analyzing trace with hash 275037612, now seen corresponding path program 1 times [2023-01-28 06:58:58,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:58,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66353718] [2023-01-28 06:58:58,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:58,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:58:59,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:59,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66353718] [2023-01-28 06:58:59,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66353718] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:59,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:59,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:58:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034349230] [2023-01-28 06:58:59,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:59,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:58:59,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:59,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:58:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:58:59,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-28 06:58:59,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2023-01-28 06:58:59,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:59,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-28 06:58:59,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:59,411 INFO L130 PetriNetUnfolder]: 305/534 cut-off events. [2023-01-28 06:58:59,411 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 06:58:59,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 534 events. 305/534 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2015 event pairs, 110 based on Foata normal form. 42/576 useless extension candidates. Maximal degree in co-relation 1100. Up to 305 conditions per place. [2023-01-28 06:58:59,415 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 17/43 dead transitions. [2023-01-28 06:58:59,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 182 flow [2023-01-28 06:58:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:58:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:58:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2023-01-28 06:58:59,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42011834319526625 [2023-01-28 06:58:59,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2023-01-28 06:58:59,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2023-01-28 06:58:59,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:59,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2023-01-28 06:58:59,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2023-01-28 06:58:59,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:58:59,425 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:58:59,425 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 5 states and 355 transitions. [2023-01-28 06:58:59,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 182 flow [2023-01-28 06:58:59,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:58:59,426 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 54 flow [2023-01-28 06:58:59,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2023-01-28 06:58:59,427 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-01-28 06:58:59,427 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 54 flow [2023-01-28 06:58:59,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2023-01-28 06:58:59,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:59,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:59,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:58:59,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:58:59,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1915642280, now seen corresponding path program 1 times [2023-01-28 06:58:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:59,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825075751] [2023-01-28 06:58:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825075751] [2023-01-28 06:59:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825075751] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:59:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310255732] [2023-01-28 06:59:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:00,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:59:00,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:59:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:59:00,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-28 06:59:00,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-01-28 06:59:00,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:00,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-28 06:59:00,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:00,218 INFO L130 PetriNetUnfolder]: 256/455 cut-off events. [2023-01-28 06:59:00,218 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-01-28 06:59:00,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 455 events. 256/455 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1630 event pairs, 125 based on Foata normal form. 24/479 useless extension candidates. Maximal degree in co-relation 1014. Up to 226 conditions per place. [2023-01-28 06:59:00,221 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 14/40 dead transitions. [2023-01-28 06:59:00,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 178 flow [2023-01-28 06:59:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:59:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:59:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 352 transitions. [2023-01-28 06:59:00,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4165680473372781 [2023-01-28 06:59:00,223 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 352 transitions. [2023-01-28 06:59:00,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 352 transitions. [2023-01-28 06:59:00,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:00,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 352 transitions. [2023-01-28 06:59:00,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 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) [2023-01-28 06:59:00,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:00,226 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:00,226 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 54 flow. Second operand 5 states and 352 transitions. [2023-01-28 06:59:00,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 178 flow [2023-01-28 06:59:00,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-28 06:59:00,228 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 58 flow [2023-01-28 06:59:00,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2023-01-28 06:59:00,229 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-01-28 06:59:00,231 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 58 flow [2023-01-28 06:59:00,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-01-28 06:59:00,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:00,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:00,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 06:59:00,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:00,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash -744690788, now seen corresponding path program 1 times [2023-01-28 06:59:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:00,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220422233] [2023-01-28 06:59:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:00,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:00,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:00,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220422233] [2023-01-28 06:59:00,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220422233] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:00,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:00,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 06:59:00,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044998915] [2023-01-28 06:59:00,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:00,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 06:59:00,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:00,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 06:59:00,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 06:59:00,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 169 [2023-01-28 06:59:00,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 58 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2023-01-28 06:59:00,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:00,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 169 [2023-01-28 06:59:00,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:01,113 INFO L130 PetriNetUnfolder]: 196/369 cut-off events. [2023-01-28 06:59:01,113 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-28 06:59:01,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 369 events. 196/369 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1399 event pairs, 80 based on Foata normal form. 15/384 useless extension candidates. Maximal degree in co-relation 833. Up to 307 conditions per place. [2023-01-28 06:59:01,115 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 27 selfloop transitions, 7 changer transitions 9/44 dead transitions. [2023-01-28 06:59:01,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 204 flow [2023-01-28 06:59:01,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:59:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:59:01,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 521 transitions. [2023-01-28 06:59:01,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44040574809805577 [2023-01-28 06:59:01,117 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 521 transitions. [2023-01-28 06:59:01,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 521 transitions. [2023-01-28 06:59:01,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:01,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 521 transitions. [2023-01-28 06:59:01,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 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) [2023-01-28 06:59:01,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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) [2023-01-28 06:59:01,120 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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) [2023-01-28 06:59:01,120 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 58 flow. Second operand 7 states and 521 transitions. [2023-01-28 06:59:01,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 204 flow [2023-01-28 06:59:01,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 187 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-01-28 06:59:01,122 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 98 flow [2023-01-28 06:59:01,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-01-28 06:59:01,122 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2023-01-28 06:59:01,122 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 98 flow [2023-01-28 06:59:01,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2023-01-28 06:59:01,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:01,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:01,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 06:59:01,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:01,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1570032139, now seen corresponding path program 1 times [2023-01-28 06:59:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:01,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80675593] [2023-01-28 06:59:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:01,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:01,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:01,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80675593] [2023-01-28 06:59:01,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80675593] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:01,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:01,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:59:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99649565] [2023-01-28 06:59:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:01,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:59:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:01,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:59:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:59:01,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-28 06:59:01,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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) [2023-01-28 06:59:01,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:01,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-28 06:59:01,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:01,440 INFO L130 PetriNetUnfolder]: 111/231 cut-off events. [2023-01-28 06:59:01,440 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-01-28 06:59:01,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 231 events. 111/231 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 822 event pairs, 53 based on Foata normal form. 35/264 useless extension candidates. Maximal degree in co-relation 593. Up to 116 conditions per place. [2023-01-28 06:59:01,441 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 42 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2023-01-28 06:59:01,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 262 flow [2023-01-28 06:59:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:59:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:59:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-01-28 06:59:01,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896449704142012 [2023-01-28 06:59:01,443 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-01-28 06:59:01,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-01-28 06:59:01,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:01,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-01-28 06:59:01,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2023-01-28 06:59:01,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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) [2023-01-28 06:59:01,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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) [2023-01-28 06:59:01,444 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 98 flow. Second operand 4 states and 331 transitions. [2023-01-28 06:59:01,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 262 flow [2023-01-28 06:59:01,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 06:59:01,446 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 122 flow [2023-01-28 06:59:01,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-01-28 06:59:01,447 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-01-28 06:59:01,447 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 122 flow [2023-01-28 06:59:01,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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) [2023-01-28 06:59:01,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:01,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:01,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 06:59:01,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:01,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:01,448 INFO L85 PathProgramCache]: Analyzing trace with hash 995260082, now seen corresponding path program 1 times [2023-01-28 06:59:01,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:01,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649086973] [2023-01-28 06:59:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:01,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649086973] [2023-01-28 06:59:02,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649086973] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:02,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:02,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 06:59:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751333727] [2023-01-28 06:59:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:02,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 06:59:02,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:02,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 06:59:02,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-01-28 06:59:02,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-28 06:59:02,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 122 flow. Second operand has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 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) [2023-01-28 06:59:02,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:02,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-28 06:59:02,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:02,363 INFO L130 PetriNetUnfolder]: 62/152 cut-off events. [2023-01-28 06:59:02,363 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-28 06:59:02,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 152 events. 62/152 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 471 event pairs, 36 based on Foata normal form. 5/157 useless extension candidates. Maximal degree in co-relation 464. Up to 131 conditions per place. [2023-01-28 06:59:02,364 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 26 selfloop transitions, 8 changer transitions 5/40 dead transitions. [2023-01-28 06:59:02,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 250 flow [2023-01-28 06:59:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:59:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:59:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 499 transitions. [2023-01-28 06:59:02,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42180896027049875 [2023-01-28 06:59:02,366 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 499 transitions. [2023-01-28 06:59:02,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 499 transitions. [2023-01-28 06:59:02,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:02,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 499 transitions. [2023-01-28 06:59:02,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2023-01-28 06:59:02,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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) [2023-01-28 06:59:02,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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) [2023-01-28 06:59:02,370 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 122 flow. Second operand 7 states and 499 transitions. [2023-01-28 06:59:02,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 250 flow [2023-01-28 06:59:02,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 238 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-28 06:59:02,372 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 153 flow [2023-01-28 06:59:02,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2023-01-28 06:59:02,374 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-28 06:59:02,374 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 153 flow [2023-01-28 06:59:02,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 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) [2023-01-28 06:59:02,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:02,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:02,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 06:59:02,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:02,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:02,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2104896819, now seen corresponding path program 1 times [2023-01-28 06:59:02,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:02,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49606194] [2023-01-28 06:59:02,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:02,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:03,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:03,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49606194] [2023-01-28 06:59:03,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49606194] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:03,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:03,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 06:59:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687797765] [2023-01-28 06:59:03,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:03,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 06:59:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 06:59:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-28 06:59:03,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-28 06:59:03,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 153 flow. Second operand has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 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) [2023-01-28 06:59:03,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:03,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-28 06:59:03,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:03,579 INFO L130 PetriNetUnfolder]: 79/189 cut-off events. [2023-01-28 06:59:03,579 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-01-28 06:59:03,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 189 events. 79/189 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 688 event pairs, 26 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 591. Up to 106 conditions per place. [2023-01-28 06:59:03,580 INFO L137 encePairwiseOnDemand]: 160/169 looper letters, 31 selfloop transitions, 11 changer transitions 14/57 dead transitions. [2023-01-28 06:59:03,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 363 flow [2023-01-28 06:59:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:59:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:59:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 640 transitions. [2023-01-28 06:59:03,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42077580539119 [2023-01-28 06:59:03,582 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 640 transitions. [2023-01-28 06:59:03,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 640 transitions. [2023-01-28 06:59:03,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:03,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 640 transitions. [2023-01-28 06:59:03,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-01-28 06:59:03,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2023-01-28 06:59:03,585 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2023-01-28 06:59:03,585 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 153 flow. Second operand 9 states and 640 transitions. [2023-01-28 06:59:03,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 363 flow [2023-01-28 06:59:03,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 349 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-28 06:59:03,588 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 202 flow [2023-01-28 06:59:03,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2023-01-28 06:59:03,588 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2023-01-28 06:59:03,589 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 202 flow [2023-01-28 06:59:03,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 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) [2023-01-28 06:59:03,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:03,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:03,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 06:59:03,589 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:03,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:03,590 INFO L85 PathProgramCache]: Analyzing trace with hash 783084069, now seen corresponding path program 2 times [2023-01-28 06:59:03,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367001411] [2023-01-28 06:59:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:03,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:03,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367001411] [2023-01-28 06:59:03,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367001411] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:03,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:03,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:59:03,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200711066] [2023-01-28 06:59:03,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:03,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:59:03,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:03,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:59:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:59:03,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-28 06:59:03,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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) [2023-01-28 06:59:03,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:03,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-28 06:59:03,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:03,938 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-01-28 06:59:03,938 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-28 06:59:03,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 110 events. 43/110 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 322 event pairs, 13 based on Foata normal form. 11/120 useless extension candidates. Maximal degree in co-relation 377. Up to 59 conditions per place. [2023-01-28 06:59:03,939 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 39 selfloop transitions, 6 changer transitions 1/47 dead transitions. [2023-01-28 06:59:03,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 344 flow [2023-01-28 06:59:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:59:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:59:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 393 transitions. [2023-01-28 06:59:03,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650887573964497 [2023-01-28 06:59:03,943 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 393 transitions. [2023-01-28 06:59:03,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 393 transitions. [2023-01-28 06:59:03,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:03,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 393 transitions. [2023-01-28 06:59:03,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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) [2023-01-28 06:59:03,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:03,946 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:03,946 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 202 flow. Second operand 5 states and 393 transitions. [2023-01-28 06:59:03,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 344 flow [2023-01-28 06:59:03,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 312 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-01-28 06:59:03,948 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 197 flow [2023-01-28 06:59:03,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2023-01-28 06:59:03,949 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-01-28 06:59:03,949 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 197 flow [2023-01-28 06:59:03,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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) [2023-01-28 06:59:03,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:03,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:03,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 06:59:03,950 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:03,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1536431698, now seen corresponding path program 1 times [2023-01-28 06:59:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890511365] [2023-01-28 06:59:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:05,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:05,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890511365] [2023-01-28 06:59:05,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890511365] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:05,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:05,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 06:59:05,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762368683] [2023-01-28 06:59:05,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:05,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 06:59:05,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:05,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 06:59:05,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-01-28 06:59:05,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 169 [2023-01-28 06:59:05,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 197 flow. Second operand has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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) [2023-01-28 06:59:05,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:05,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 169 [2023-01-28 06:59:05,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:05,951 INFO L130 PetriNetUnfolder]: 43/123 cut-off events. [2023-01-28 06:59:05,951 INFO L131 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2023-01-28 06:59:05,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 123 events. 43/123 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 392 event pairs, 3 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 433. Up to 55 conditions per place. [2023-01-28 06:59:05,952 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 28 selfloop transitions, 20 changer transitions 10/59 dead transitions. [2023-01-28 06:59:05,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 435 flow [2023-01-28 06:59:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:59:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:59:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 624 transitions. [2023-01-28 06:59:05,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2023-01-28 06:59:05,954 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 624 transitions. [2023-01-28 06:59:05,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 624 transitions. [2023-01-28 06:59:05,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:05,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 624 transitions. [2023-01-28 06:59:05,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.33333333333333) internal successors, (624), 9 states have internal predecessors, (624), 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) [2023-01-28 06:59:05,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2023-01-28 06:59:05,957 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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) [2023-01-28 06:59:05,957 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 197 flow. Second operand 9 states and 624 transitions. [2023-01-28 06:59:05,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 435 flow [2023-01-28 06:59:05,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 362 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-01-28 06:59:05,958 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 270 flow [2023-01-28 06:59:05,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=270, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-28 06:59:05,959 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2023-01-28 06:59:05,959 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 270 flow [2023-01-28 06:59:05,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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) [2023-01-28 06:59:05,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:05,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:05,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 06:59:05,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:05,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash 152097626, now seen corresponding path program 2 times [2023-01-28 06:59:05,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:05,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212608761] [2023-01-28 06:59:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:05,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212608761] [2023-01-28 06:59:06,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212608761] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:06,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:06,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:59:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675386645] [2023-01-28 06:59:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:59:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:59:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:59:06,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 169 [2023-01-28 06:59:06,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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) [2023-01-28 06:59:06,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:06,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 169 [2023-01-28 06:59:06,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:06,218 INFO L130 PetriNetUnfolder]: 52/139 cut-off events. [2023-01-28 06:59:06,219 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-01-28 06:59:06,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 139 events. 52/139 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 454 event pairs, 9 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 530. Up to 68 conditions per place. [2023-01-28 06:59:06,219 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 26 selfloop transitions, 1 changer transitions 39/66 dead transitions. [2023-01-28 06:59:06,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 532 flow [2023-01-28 06:59:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:59:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:59:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 383 transitions. [2023-01-28 06:59:06,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532544378698225 [2023-01-28 06:59:06,221 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 383 transitions. [2023-01-28 06:59:06,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 383 transitions. [2023-01-28 06:59:06,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:06,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 383 transitions. [2023-01-28 06:59:06,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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) [2023-01-28 06:59:06,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:06,223 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2023-01-28 06:59:06,223 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 270 flow. Second operand 5 states and 383 transitions. [2023-01-28 06:59:06,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 532 flow [2023-01-28 06:59:06,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 469 flow, removed 23 selfloop flow, removed 5 redundant places. [2023-01-28 06:59:06,226 INFO L231 Difference]: Finished difference. Result has 58 places, 27 transitions, 129 flow [2023-01-28 06:59:06,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=58, PETRI_TRANSITIONS=27} [2023-01-28 06:59:06,227 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2023-01-28 06:59:06,227 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 27 transitions, 129 flow [2023-01-28 06:59:06,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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) [2023-01-28 06:59:06,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:06,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:06,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 06:59:06,227 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:06,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:06,228 INFO L85 PathProgramCache]: Analyzing trace with hash 319043860, now seen corresponding path program 3 times [2023-01-28 06:59:06,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:06,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020115071] [2023-01-28 06:59:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:06,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:07,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:07,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020115071] [2023-01-28 06:59:07,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020115071] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:07,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:07,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:59:07,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312399685] [2023-01-28 06:59:07,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:07,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:59:07,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:07,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:59:07,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:59:07,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 169 [2023-01-28 06:59:07,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 27 transitions, 129 flow. Second operand has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 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) [2023-01-28 06:59:07,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:07,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 169 [2023-01-28 06:59:07,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:07,503 INFO L130 PetriNetUnfolder]: 15/65 cut-off events. [2023-01-28 06:59:07,503 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-01-28 06:59:07,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 65 events. 15/65 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 8 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 215. Up to 20 conditions per place. [2023-01-28 06:59:07,503 INFO L137 encePairwiseOnDemand]: 161/169 looper letters, 15 selfloop transitions, 5 changer transitions 15/36 dead transitions. [2023-01-28 06:59:07,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 36 transitions, 233 flow [2023-01-28 06:59:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:59:07,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:59:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 550 transitions. [2023-01-28 06:59:07,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068047337278107 [2023-01-28 06:59:07,505 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 550 transitions. [2023-01-28 06:59:07,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 550 transitions. [2023-01-28 06:59:07,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:07,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 550 transitions. [2023-01-28 06:59:07,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.75) internal successors, (550), 8 states have internal predecessors, (550), 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) [2023-01-28 06:59:07,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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) [2023-01-28 06:59:07,508 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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) [2023-01-28 06:59:07,508 INFO L175 Difference]: Start difference. First operand has 58 places, 27 transitions, 129 flow. Second operand 8 states and 550 transitions. [2023-01-28 06:59:07,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 36 transitions, 233 flow [2023-01-28 06:59:07,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 201 flow, removed 9 selfloop flow, removed 13 redundant places. [2023-01-28 06:59:07,509 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 94 flow [2023-01-28 06:59:07,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-01-28 06:59:07,509 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-28 06:59:07,509 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 94 flow [2023-01-28 06:59:07,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 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) [2023-01-28 06:59:07,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:59:07,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:07,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 06:59:07,510 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:59:07,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:59:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash -189233210, now seen corresponding path program 4 times [2023-01-28 06:59:07,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:59:07,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730930879] [2023-01-28 06:59:07,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:59:07,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:59:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:59:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:59:09,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:59:09,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730930879] [2023-01-28 06:59:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730930879] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:59:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:59:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-01-28 06:59:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670276479] [2023-01-28 06:59:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:59:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-28 06:59:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:59:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-28 06:59:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-01-28 06:59:09,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 169 [2023-01-28 06:59:09,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 94 flow. Second operand has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 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) [2023-01-28 06:59:09,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:59:09,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 169 [2023-01-28 06:59:09,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:59:10,009 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-28 06:59:10,009 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 06:59:10,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 40 events. 8/40 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 127. Up to 15 conditions per place. [2023-01-28 06:59:10,010 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-01-28 06:59:10,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 149 flow [2023-01-28 06:59:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 06:59:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 06:59:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 622 transitions. [2023-01-28 06:59:10,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3680473372781065 [2023-01-28 06:59:10,011 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 622 transitions. [2023-01-28 06:59:10,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 622 transitions. [2023-01-28 06:59:10,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:59:10,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 622 transitions. [2023-01-28 06:59:10,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.2) internal successors, (622), 10 states have internal predecessors, (622), 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) [2023-01-28 06:59:10,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 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) [2023-01-28 06:59:10,015 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 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) [2023-01-28 06:59:10,015 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 94 flow. Second operand 10 states and 622 transitions. [2023-01-28 06:59:10,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 149 flow [2023-01-28 06:59:10,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 24 transitions, 127 flow, removed 2 selfloop flow, removed 10 redundant places. [2023-01-28 06:59:10,015 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-01-28 06:59:10,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-01-28 06:59:10,016 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2023-01-28 06:59:10,016 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-01-28 06:59:10,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 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) [2023-01-28 06:59:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 06:59:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 06:59:10,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 06:59:10,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 06:59:10,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 06:59:10,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 06:59:10,020 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1] [2023-01-28 06:59:10,023 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:59:10,023 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:59:10,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:59:10 BasicIcfg [2023-01-28 06:59:10,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:59:10,025 INFO L158 Benchmark]: Toolchain (without parser) took 15857.39ms. Allocated memory was 362.8MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 299.4MB in the beginning and 620.4MB in the end (delta: -321.0MB). Peak memory consumption was 443.0MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 362.8MB. Free memory is still 311.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.58ms. Allocated memory is still 362.8MB. Free memory was 299.1MB in the beginning and 273.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.23ms. Allocated memory is still 362.8MB. Free memory was 273.9MB in the beginning and 270.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: Boogie Preprocessor took 41.69ms. Allocated memory was 362.8MB in the beginning and 601.9MB in the end (delta: 239.1MB). Free memory was 270.8MB in the beginning and 565.0MB in the end (delta: -294.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: RCFGBuilder took 643.38ms. Allocated memory is still 601.9MB. Free memory was 565.0MB in the beginning and 513.9MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,026 INFO L158 Benchmark]: TraceAbstraction took 14798.67ms. Allocated memory was 601.9MB in the beginning and 1.1GB in the end (delta: 524.3MB). Free memory was 513.3MB in the beginning and 620.4MB in the end (delta: -107.1MB). Peak memory consumption was 417.2MB. Max. memory is 16.0GB. [2023-01-28 06:59:10,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 362.8MB. Free memory is still 311.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 328.58ms. Allocated memory is still 362.8MB. Free memory was 299.1MB in the beginning and 273.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.23ms. Allocated memory is still 362.8MB. Free memory was 273.9MB in the beginning and 270.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.69ms. Allocated memory was 362.8MB in the beginning and 601.9MB in the end (delta: 239.1MB). Free memory was 270.8MB in the beginning and 565.0MB in the end (delta: -294.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. * RCFGBuilder took 643.38ms. Allocated memory is still 601.9MB. Free memory was 565.0MB in the beginning and 513.9MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. * TraceAbstraction took 14798.67ms. Allocated memory was 601.9MB in the beginning and 1.1GB in the end (delta: 524.3MB). Free memory was 513.3MB in the beginning and 620.4MB in the end (delta: -107.1MB). Peak memory consumption was 417.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 95 PlacesBefore, 29 PlacesAfterwards, 90 TransitionsBefore, 23 TransitionsAfterwards, 1244 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 4348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1805, independent: 1601, independent conditional: 0, independent unconditional: 1601, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 681, independent: 652, independent conditional: 0, independent unconditional: 652, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1805, independent: 949, independent conditional: 0, independent unconditional: 949, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 681, unknown conditional: 0, unknown unconditional: 681] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 5 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: 14.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 5 mSDtfsCounter, 1446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=9, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 3033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 06:59:10,067 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...