/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/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:58:32,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:58:32,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:58:32,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:58:32,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:58:32,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:58:32,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:58:32,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:58:32,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:58:32,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:58:32,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:58:32,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:58:32,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:58:32,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:58:32,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:58:32,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:58:32,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:58:32,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:58:32,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:58:32,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:58:32,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:58:32,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:58:32,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:58:32,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:58:32,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 06:58:32,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:58:32,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:58:32,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:58:32,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:58:32,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:58:32,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:58:32,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:58:32,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:58:32,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:58:32,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:58:32,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:58:32,375 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 06:58:32,387 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:58:32,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:58:32,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:58:32,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:58:32,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:58:32,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:58:32,389 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:58:32,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:58:32,390 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:58:32,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:58:32,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:58:32,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:58:32,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:58:32,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:58:32,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:58:32,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:58:32,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:58:32,578 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:58:32,578 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:58:32,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-28 06:58:33,727 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:58:34,009 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:58:34,010 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-28 06:58:34,025 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2607514f0/6b58dcd0aa9840f586ce16128b9c0be7/FLAG5930dbfd7 [2023-01-28 06:58:34,038 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2607514f0/6b58dcd0aa9840f586ce16128b9c0be7 [2023-01-28 06:58:34,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:58:34,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:58:34,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:58:34,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:58:34,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:58:34,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdb2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34, skipping insertion in model container [2023-01-28 06:58:34,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:58:34,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:58:34,277 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/rfi000_tso.i[944,957] [2023-01-28 06:58:34,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:58:34,455 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:58:34,465 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/rfi000_tso.i[944,957] [2023-01-28 06:58:34,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:58:34,531 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:58:34,531 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:58:34,535 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:58:34,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34 WrapperNode [2023-01-28 06:58:34,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:58:34,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:58:34,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:58:34,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:58:34,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,591 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-01-28 06:58:34,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:58:34,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:58:34,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:58:34,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:58:34,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:58:34,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:58:34,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:58:34,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:58:34,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (1/1) ... [2023-01-28 06:58:34,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:58:34,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:58:34,674 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 06:58:34,723 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 06:58:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:58:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 06:58:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:58:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:58:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:58:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 06:58:34,739 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 06:58:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 06:58:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 06:58:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:58:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 06:58:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:58:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:58:34,743 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 06:58:34,867 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:58:34,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:58:35,132 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:58:35,317 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:58:35,317 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 06:58:35,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:58:35 BoogieIcfgContainer [2023-01-28 06:58:35,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:58:35,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:58:35,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:58:35,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:58:35,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:58:34" (1/3) ... [2023-01-28 06:58:35,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c539c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:58:35, skipping insertion in model container [2023-01-28 06:58:35,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:58:34" (2/3) ... [2023-01-28 06:58:35,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c539c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:58:35, skipping insertion in model container [2023-01-28 06:58:35,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:58:35" (3/3) ... [2023-01-28 06:58:35,327 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-01-28 06:58:35,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:58:35,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 06:58:35,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:58:35,381 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 06:58:35,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2023-01-28 06:58:35,448 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-28 06:58:35,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:35,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-28 06:58:35,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2023-01-28 06:58:35,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2023-01-28 06:58:35,459 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:58:35,471 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-28 06:58:35,474 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-28 06:58:35,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 182 flow [2023-01-28 06:58:35,491 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-28 06:58:35,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:35,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-28 06:58:35,493 INFO L119 LiptonReduction]: Number of co-enabled transitions 1156 [2023-01-28 06:58:37,342 INFO L134 LiptonReduction]: Checked pairs total: 3494 [2023-01-28 06:58:37,342 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-28 06:58:37,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:58:37,373 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;@7a9720cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:58:37,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 06:58:37,376 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-01-28 06:58:37,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:58:37,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:37,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 06:58:37,377 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 06:58:37,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1153820224, now seen corresponding path program 1 times [2023-01-28 06:58:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:37,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039273624] [2023-01-28 06:58:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:37,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:37,740 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 06:58:37,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:37,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039273624] [2023-01-28 06:58:37,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039273624] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:37,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:37,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 06:58:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088643148] [2023-01-28 06:58:37,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:37,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:58:37,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:37,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:58:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:58:37,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 166 [2023-01-28 06:58:37,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 06:58:37,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:37,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 166 [2023-01-28 06:58:37,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:37,881 INFO L130 PetriNetUnfolder]: 294/501 cut-off events. [2023-01-28 06:58:37,881 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 06:58:37,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 501 events. 294/501 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2036 event pairs, 69 based on Foata normal form. 28/472 useless extension candidates. Maximal degree in co-relation 1004. Up to 366 conditions per place. [2023-01-28 06:58:37,885 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2023-01-28 06:58:37,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-01-28 06:58:37,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:58:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:58:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-01-28 06:58:37,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200803212851406 [2023-01-28 06:58:37,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-01-28 06:58:37,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-01-28 06:58:37,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:37,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-01-28 06:58:37,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 06:58:37,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 06:58:37,902 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 06:58:37,903 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 259 transitions. [2023-01-28 06:58:37,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-01-28 06:58:37,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:58:37,906 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-01-28 06:58:37,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-01-28 06:58:37,910 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-01-28 06:58:37,910 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-01-28 06:58:37,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 06:58:37,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:37,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:37,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:58:37,911 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 06:58:37,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash 721288587, now seen corresponding path program 1 times [2023-01-28 06:58:37,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:37,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016770525] [2023-01-28 06:58:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:37,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:38,871 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 06:58:38,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:38,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016770525] [2023-01-28 06:58:38,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016770525] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:38,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:38,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:58:38,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483418021] [2023-01-28 06:58:38,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:38,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:58:38,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:38,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:58:38,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:58:38,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 06:58:38,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 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 06:58:38,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:38,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 06:58:38,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:39,154 INFO L130 PetriNetUnfolder]: 337/591 cut-off events. [2023-01-28 06:58:39,155 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 06:58:39,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 591 events. 337/591 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2397 event pairs, 100 based on Foata normal form. 41/632 useless extension candidates. Maximal degree in co-relation 1224. Up to 439 conditions per place. [2023-01-28 06:58:39,159 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 27 selfloop transitions, 10 changer transitions 22/59 dead transitions. [2023-01-28 06:58:39,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 59 transitions, 254 flow [2023-01-28 06:58:39,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:58:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:58:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2023-01-28 06:58:39,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4268502581755594 [2023-01-28 06:58:39,164 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 496 transitions. [2023-01-28 06:58:39,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 496 transitions. [2023-01-28 06:58:39,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:39,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 496 transitions. [2023-01-28 06:58:39,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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 06:58:39,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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 06:58:39,170 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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 06:58:39,170 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 496 transitions. [2023-01-28 06:58:39,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 59 transitions, 254 flow [2023-01-28 06:58:39,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:58:39,174 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 117 flow [2023-01-28 06:58:39,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-01-28 06:58:39,175 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2023-01-28 06:58:39,175 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 117 flow [2023-01-28 06:58:39,175 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 06:58:39,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:39,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:39,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:58:39,176 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 06:58:39,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:39,176 INFO L85 PathProgramCache]: Analyzing trace with hash 885095490, now seen corresponding path program 1 times [2023-01-28 06:58:39,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:39,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062100373] [2023-01-28 06:58:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:39,799 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 06:58:39,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:39,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062100373] [2023-01-28 06:58:39,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062100373] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:39,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:39,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:58:39,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150077343] [2023-01-28 06:58:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:39,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:58:39,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:39,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:58:39,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:58:39,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 06:58:39,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 06:58:39,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:39,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 06:58:39,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:40,006 INFO L130 PetriNetUnfolder]: 271/481 cut-off events. [2023-01-28 06:58:40,006 INFO L131 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2023-01-28 06:58:40,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 481 events. 271/481 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1814 event pairs, 89 based on Foata normal form. 39/520 useless extension candidates. Maximal degree in co-relation 1506. Up to 229 conditions per place. [2023-01-28 06:58:40,010 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 30 selfloop transitions, 7 changer transitions 21/58 dead transitions. [2023-01-28 06:58:40,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 58 transitions, 365 flow [2023-01-28 06:58:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 06:58:40,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 06:58:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 485 transitions. [2023-01-28 06:58:40,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4173838209982788 [2023-01-28 06:58:40,012 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 485 transitions. [2023-01-28 06:58:40,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 485 transitions. [2023-01-28 06:58:40,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:40,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 485 transitions. [2023-01-28 06:58:40,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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 06:58:40,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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 06:58:40,015 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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 06:58:40,015 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 117 flow. Second operand 7 states and 485 transitions. [2023-01-28 06:58:40,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 58 transitions, 365 flow [2023-01-28 06:58:40,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 357 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-01-28 06:58:40,018 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 174 flow [2023-01-28 06:58:40,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2023-01-28 06:58:40,018 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2023-01-28 06:58:40,019 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 174 flow [2023-01-28 06:58:40,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 06:58:40,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:40,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:40,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 06:58:40,019 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 06:58:40,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:40,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1532632972, now seen corresponding path program 1 times [2023-01-28 06:58:40,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:40,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656090438] [2023-01-28 06:58:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:40,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:40,792 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 06:58:40,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:40,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656090438] [2023-01-28 06:58:40,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656090438] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:40,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:40,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 06:58:40,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238296480] [2023-01-28 06:58:40,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:40,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 06:58:40,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:40,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 06:58:40,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 06:58:40,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 166 [2023-01-28 06:58:40,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 174 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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 06:58:40,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:40,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 166 [2023-01-28 06:58:40,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:40,966 INFO L130 PetriNetUnfolder]: 211/387 cut-off events. [2023-01-28 06:58:40,966 INFO L131 PetriNetUnfolder]: For 597/618 co-relation queries the response was YES. [2023-01-28 06:58:40,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 387 events. 211/387 cut-off events. For 597/618 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1446 event pairs, 48 based on Foata normal form. 32/415 useless extension candidates. Maximal degree in co-relation 1369. Up to 318 conditions per place. [2023-01-28 06:58:40,968 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 36 selfloop transitions, 9 changer transitions 10/58 dead transitions. [2023-01-28 06:58:40,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 403 flow [2023-01-28 06:58:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:58:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:58:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 582 transitions. [2023-01-28 06:58:40,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4382530120481928 [2023-01-28 06:58:40,970 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 582 transitions. [2023-01-28 06:58:40,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 582 transitions. [2023-01-28 06:58:40,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:40,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 582 transitions. [2023-01-28 06:58:40,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 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 06:58:40,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:40,973 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:40,974 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 174 flow. Second operand 8 states and 582 transitions. [2023-01-28 06:58:40,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 403 flow [2023-01-28 06:58:40,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 385 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 06:58:40,977 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 239 flow [2023-01-28 06:58:40,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-01-28 06:58:40,978 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 20 predicate places. [2023-01-28 06:58:40,978 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 239 flow [2023-01-28 06:58:40,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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 06:58:40,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:40,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:40,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 06:58:40,979 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 06:58:40,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:40,979 INFO L85 PathProgramCache]: Analyzing trace with hash 848568254, now seen corresponding path program 1 times [2023-01-28 06:58:40,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:40,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397958452] [2023-01-28 06:58:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:41,176 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 06:58:41,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:41,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397958452] [2023-01-28 06:58:41,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397958452] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:41,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:41,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:58:41,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658963380] [2023-01-28 06:58:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:58:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:58:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:58:41,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-28 06:58:41,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 06:58:41,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:41,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-28 06:58:41,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:41,224 INFO L130 PetriNetUnfolder]: 66/153 cut-off events. [2023-01-28 06:58:41,224 INFO L131 PetriNetUnfolder]: For 235/244 co-relation queries the response was YES. [2023-01-28 06:58:41,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 153 events. 66/153 cut-off events. For 235/244 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 479 event pairs, 9 based on Foata normal form. 30/181 useless extension candidates. Maximal degree in co-relation 591. Up to 94 conditions per place. [2023-01-28 06:58:41,225 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 42 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2023-01-28 06:58:41,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 388 flow [2023-01-28 06:58:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:58:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:58:41,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-01-28 06:58:41,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4979919678714859 [2023-01-28 06:58:41,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-01-28 06:58:41,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-01-28 06:58:41,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:41,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-01-28 06:58:41,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 06:58:41,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 06:58:41,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 06:58:41,228 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 239 flow. Second operand 3 states and 248 transitions. [2023-01-28 06:58:41,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 388 flow [2023-01-28 06:58:41,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 364 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-01-28 06:58:41,230 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 229 flow [2023-01-28 06:58:41,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-01-28 06:58:41,230 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 17 predicate places. [2023-01-28 06:58:41,231 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 229 flow [2023-01-28 06:58:41,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 06:58:41,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:41,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:41,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 06:58:41,231 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 06:58:41,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:41,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1010908484, now seen corresponding path program 1 times [2023-01-28 06:58:41,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:41,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703771914] [2023-01-28 06:58:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:41,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:42,289 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 06:58:42,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:42,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703771914] [2023-01-28 06:58:42,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703771914] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:42,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:42,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 06:58:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522369646] [2023-01-28 06:58:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:42,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 06:58:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 06:58:42,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-28 06:58:42,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-28 06:58:42,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 229 flow. Second operand has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 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 06:58:42,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:42,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-28 06:58:42,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:42,540 INFO L130 PetriNetUnfolder]: 66/159 cut-off events. [2023-01-28 06:58:42,540 INFO L131 PetriNetUnfolder]: For 171/178 co-relation queries the response was YES. [2023-01-28 06:58:42,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 159 events. 66/159 cut-off events. For 171/178 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 493 event pairs, 21 based on Foata normal form. 11/170 useless extension candidates. Maximal degree in co-relation 626. Up to 124 conditions per place. [2023-01-28 06:58:42,541 INFO L137 encePairwiseOnDemand]: 157/166 looper letters, 33 selfloop transitions, 16 changer transitions 4/56 dead transitions. [2023-01-28 06:58:42,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 56 transitions, 426 flow [2023-01-28 06:58:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 06:58:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 06:58:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2023-01-28 06:58:42,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42409638554216866 [2023-01-28 06:58:42,543 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 704 transitions. [2023-01-28 06:58:42,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 704 transitions. [2023-01-28 06:58:42,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:42,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 704 transitions. [2023-01-28 06:58:42,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.4) internal successors, (704), 10 states have internal predecessors, (704), 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 06:58:42,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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 06:58:42,546 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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 06:58:42,546 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 229 flow. Second operand 10 states and 704 transitions. [2023-01-28 06:58:42,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 56 transitions, 426 flow [2023-01-28 06:58:42,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:58:42,548 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 321 flow [2023-01-28 06:58:42,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=321, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-28 06:58:42,549 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 29 predicate places. [2023-01-28 06:58:42,549 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 321 flow [2023-01-28 06:58:42,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 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 06:58:42,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:42,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:42,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 06:58:42,550 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 06:58:42,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash 36994820, now seen corresponding path program 1 times [2023-01-28 06:58:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:42,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510738371] [2023-01-28 06:58:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:43,379 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 06:58:43,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510738371] [2023-01-28 06:58:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510738371] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:43,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:43,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 06:58:43,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538892146] [2023-01-28 06:58:43,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:43,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 06:58:43,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 06:58:43,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-01-28 06:58:43,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-28 06:58:43,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 321 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 06:58:43,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:43,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-28 06:58:43,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:43,652 INFO L130 PetriNetUnfolder]: 98/236 cut-off events. [2023-01-28 06:58:43,653 INFO L131 PetriNetUnfolder]: For 481/494 co-relation queries the response was YES. [2023-01-28 06:58:43,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 236 events. 98/236 cut-off events. For 481/494 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 931 event pairs, 15 based on Foata normal form. 18/254 useless extension candidates. Maximal degree in co-relation 1042. Up to 118 conditions per place. [2023-01-28 06:58:43,654 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 49 selfloop transitions, 15 changer transitions 14/81 dead transitions. [2023-01-28 06:58:43,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 81 transitions, 721 flow [2023-01-28 06:58:43,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:58:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:58:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2023-01-28 06:58:43,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43448795180722893 [2023-01-28 06:58:43,656 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 577 transitions. [2023-01-28 06:58:43,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 577 transitions. [2023-01-28 06:58:43,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:43,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 577 transitions. [2023-01-28 06:58:43,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 06:58:43,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:43,659 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:43,659 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 321 flow. Second operand 8 states and 577 transitions. [2023-01-28 06:58:43,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 81 transitions, 721 flow [2023-01-28 06:58:43,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 677 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-01-28 06:58:43,662 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 390 flow [2023-01-28 06:58:43,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2023-01-28 06:58:43,662 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-28 06:58:43,663 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 390 flow [2023-01-28 06:58:43,663 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 06:58:43,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:43,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:43,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 06:58:43,663 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 06:58:43,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:43,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1634806898, now seen corresponding path program 2 times [2023-01-28 06:58:43,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:43,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598258395] [2023-01-28 06:58:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:43,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:45,258 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 06:58:45,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:45,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598258395] [2023-01-28 06:58:45,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598258395] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:45,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:45,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 06:58:45,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55161821] [2023-01-28 06:58:45,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:45,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 06:58:45,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:45,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 06:58:45,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-28 06:58:45,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2023-01-28 06:58:45,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 390 flow. Second operand has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 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 06:58:45,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:45,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2023-01-28 06:58:45,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:45,714 INFO L130 PetriNetUnfolder]: 127/311 cut-off events. [2023-01-28 06:58:45,714 INFO L131 PetriNetUnfolder]: For 901/921 co-relation queries the response was YES. [2023-01-28 06:58:45,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 311 events. 127/311 cut-off events. For 901/921 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1427 event pairs, 31 based on Foata normal form. 24/334 useless extension candidates. Maximal degree in co-relation 1461. Up to 162 conditions per place. [2023-01-28 06:58:45,716 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 50 selfloop transitions, 24 changer transitions 14/91 dead transitions. [2023-01-28 06:58:45,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 865 flow [2023-01-28 06:58:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:58:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:58:45,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 633 transitions. [2023-01-28 06:58:45,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42369477911646586 [2023-01-28 06:58:45,718 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 633 transitions. [2023-01-28 06:58:45,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 633 transitions. [2023-01-28 06:58:45,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:45,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 633 transitions. [2023-01-28 06:58:45,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 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 06:58:45,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 06:58:45,722 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 06:58:45,722 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 390 flow. Second operand 9 states and 633 transitions. [2023-01-28 06:58:45,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 865 flow [2023-01-28 06:58:45,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 833 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-01-28 06:58:45,728 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 530 flow [2023-01-28 06:58:45,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=530, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2023-01-28 06:58:45,730 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 41 predicate places. [2023-01-28 06:58:45,730 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 530 flow [2023-01-28 06:58:45,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 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 06:58:45,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:45,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:45,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 06:58:45,731 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 06:58:45,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:45,734 INFO L85 PathProgramCache]: Analyzing trace with hash 964595912, now seen corresponding path program 3 times [2023-01-28 06:58:45,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:45,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038701379] [2023-01-28 06:58:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:45,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:45,898 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 06:58:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038701379] [2023-01-28 06:58:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038701379] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:58:45,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132898168] [2023-01-28 06:58:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:45,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:58:45,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:45,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:58:45,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:58:45,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-28 06:58:45,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 06:58:45,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:45,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-28 06:58:45,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:45,956 INFO L130 PetriNetUnfolder]: 55/157 cut-off events. [2023-01-28 06:58:45,956 INFO L131 PetriNetUnfolder]: For 601/609 co-relation queries the response was YES. [2023-01-28 06:58:45,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 157 events. 55/157 cut-off events. For 601/609 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 625 event pairs, 6 based on Foata normal form. 32/188 useless extension candidates. Maximal degree in co-relation 834. Up to 82 conditions per place. [2023-01-28 06:58:45,957 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 50 selfloop transitions, 5 changer transitions 11/69 dead transitions. [2023-01-28 06:58:45,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 784 flow [2023-01-28 06:58:45,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:58:45,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:58:45,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-01-28 06:58:45,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48343373493975905 [2023-01-28 06:58:45,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-01-28 06:58:45,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-01-28 06:58:45,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:45,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-01-28 06:58:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 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 06:58:45,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 06:58:45,961 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 06:58:45,961 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 530 flow. Second operand 4 states and 321 transitions. [2023-01-28 06:58:45,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 784 flow [2023-01-28 06:58:45,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 674 flow, removed 35 selfloop flow, removed 7 redundant places. [2023-01-28 06:58:45,965 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 353 flow [2023-01-28 06:58:45,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=353, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2023-01-28 06:58:45,966 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 37 predicate places. [2023-01-28 06:58:45,966 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 353 flow [2023-01-28 06:58:45,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 06:58:45,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:45,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:45,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 06:58:45,966 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 06:58:45,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:45,967 INFO L85 PathProgramCache]: Analyzing trace with hash 741524624, now seen corresponding path program 1 times [2023-01-28 06:58:45,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:45,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091005570] [2023-01-28 06:58:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:45,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:47,358 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 06:58:47,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:47,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091005570] [2023-01-28 06:58:47,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091005570] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:47,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:47,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 06:58:47,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367536447] [2023-01-28 06:58:47,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:47,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 06:58:47,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:47,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 06:58:47,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-01-28 06:58:47,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 166 [2023-01-28 06:58:47,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 353 flow. Second operand has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 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 06:58:47,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:47,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 166 [2023-01-28 06:58:47,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:48,035 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2023-01-28 06:58:48,036 INFO L131 PetriNetUnfolder]: For 293/299 co-relation queries the response was YES. [2023-01-28 06:58:48,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 103 events. 33/103 cut-off events. For 293/299 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 1 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 481. Up to 44 conditions per place. [2023-01-28 06:58:48,036 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 31 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2023-01-28 06:58:48,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 559 flow [2023-01-28 06:58:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:58:48,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:58:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 589 transitions. [2023-01-28 06:58:48,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39424364123159306 [2023-01-28 06:58:48,055 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 589 transitions. [2023-01-28 06:58:48,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 589 transitions. [2023-01-28 06:58:48,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:48,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 589 transitions. [2023-01-28 06:58:48,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 65.44444444444444) internal successors, (589), 9 states have internal predecessors, (589), 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 06:58:48,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 06:58:48,062 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 06:58:48,062 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 353 flow. Second operand 9 states and 589 transitions. [2023-01-28 06:58:48,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 559 flow [2023-01-28 06:58:48,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 480 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-01-28 06:58:48,070 INFO L231 Difference]: Finished difference. Result has 66 places, 39 transitions, 279 flow [2023-01-28 06:58:48,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=66, PETRI_TRANSITIONS=39} [2023-01-28 06:58:48,071 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 38 predicate places. [2023-01-28 06:58:48,071 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 39 transitions, 279 flow [2023-01-28 06:58:48,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 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 06:58:48,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:48,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:48,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 06:58:48,072 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 06:58:48,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1303551252, now seen corresponding path program 2 times [2023-01-28 06:58:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:48,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670518793] [2023-01-28 06:58:48,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:48,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:49,973 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 06:58:49,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:49,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670518793] [2023-01-28 06:58:49,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670518793] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:49,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:49,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 06:58:49,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143611441] [2023-01-28 06:58:49,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:49,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 06:58:49,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:49,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 06:58:49,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-01-28 06:58:49,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-01-28 06:58:49,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 39 transitions, 279 flow. Second operand has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 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 06:58:49,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:49,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-01-28 06:58:49,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:50,141 INFO L130 PetriNetUnfolder]: 23/83 cut-off events. [2023-01-28 06:58:50,141 INFO L131 PetriNetUnfolder]: For 177/180 co-relation queries the response was YES. [2023-01-28 06:58:50,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 83 events. 23/83 cut-off events. For 177/180 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 220 event pairs, 2 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 363. Up to 43 conditions per place. [2023-01-28 06:58:50,142 INFO L137 encePairwiseOnDemand]: 159/166 looper letters, 28 selfloop transitions, 2 changer transitions 21/53 dead transitions. [2023-01-28 06:58:50,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 53 transitions, 449 flow [2023-01-28 06:58:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 06:58:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 06:58:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 538 transitions. [2023-01-28 06:58:50,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40512048192771083 [2023-01-28 06:58:50,144 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 538 transitions. [2023-01-28 06:58:50,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 538 transitions. [2023-01-28 06:58:50,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:50,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 538 transitions. [2023-01-28 06:58:50,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.25) internal successors, (538), 8 states have internal predecessors, (538), 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 06:58:50,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:50,147 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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 06:58:50,147 INFO L175 Difference]: Start difference. First operand has 66 places, 39 transitions, 279 flow. Second operand 8 states and 538 transitions. [2023-01-28 06:58:50,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 53 transitions, 449 flow [2023-01-28 06:58:50,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 389 flow, removed 6 selfloop flow, removed 15 redundant places. [2023-01-28 06:58:50,149 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 190 flow [2023-01-28 06:58:50,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2023-01-28 06:58:50,150 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-28 06:58:50,150 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 190 flow [2023-01-28 06:58:50,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 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 06:58:50,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:58:50,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:50,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 06:58:50,151 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 06:58:50,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:58:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash -291110304, now seen corresponding path program 3 times [2023-01-28 06:58:50,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:58:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984939706] [2023-01-28 06:58:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:58:50,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:58:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:58:50,713 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 06:58:50,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:58:50,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984939706] [2023-01-28 06:58:50,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984939706] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:58:50,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:58:50,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:58:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074887050] [2023-01-28 06:58:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:58:50,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:58:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:58:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:58:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:58:50,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 06:58:50,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 06:58:50,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:58:50,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 06:58:50,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:58:50,770 INFO L130 PetriNetUnfolder]: 16/52 cut-off events. [2023-01-28 06:58:50,771 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 06:58:50,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 52 events. 16/52 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 4 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2023-01-28 06:58:50,771 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-01-28 06:58:50,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 276 flow [2023-01-28 06:58:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:58:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:58:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2023-01-28 06:58:50,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2023-01-28 06:58:50,772 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 332 transitions. [2023-01-28 06:58:50,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 332 transitions. [2023-01-28 06:58:50,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:58:50,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 332 transitions. [2023-01-28 06:58:50,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 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 06:58:50,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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 06:58:50,774 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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 06:58:50,774 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 190 flow. Second operand 5 states and 332 transitions. [2023-01-28 06:58:50,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 276 flow [2023-01-28 06:58:50,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 240 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-01-28 06:58:50,775 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-01-28 06:58:50,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-01-28 06:58:50,776 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2023-01-28 06:58:50,776 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-01-28 06:58:50,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 06:58:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 06:58:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 06:58:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 06:58:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 06:58:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 06:58:50,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 06:58:50,779 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2023-01-28 06:58:50,781 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:58:50,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:58:50,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:58:50 BasicIcfg [2023-01-28 06:58:50,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:58:50,785 INFO L158 Benchmark]: Toolchain (without parser) took 16743.65ms. Allocated memory was 633.3MB in the beginning and 1.2GB in the end (delta: 557.8MB). Free memory was 584.4MB in the beginning and 955.9MB in the end (delta: -371.5MB). Peak memory consumption was 190.3MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,785 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 404.8MB. Free memory is still 353.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:58:50,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.67ms. Allocated memory is still 633.3MB. Free memory was 584.4MB in the beginning and 559.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.47ms. Allocated memory is still 633.3MB. Free memory was 559.6MB in the beginning and 556.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,785 INFO L158 Benchmark]: Boogie Preprocessor took 32.27ms. Allocated memory is still 633.3MB. Free memory was 556.2MB in the beginning and 554.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,786 INFO L158 Benchmark]: RCFGBuilder took 693.94ms. Allocated memory is still 633.3MB. Free memory was 554.1MB in the beginning and 575.9MB in the end (delta: -21.8MB). Peak memory consumption was 34.4MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,786 INFO L158 Benchmark]: TraceAbstraction took 15462.03ms. Allocated memory was 633.3MB in the beginning and 1.2GB in the end (delta: 557.8MB). Free memory was 575.9MB in the beginning and 955.9MB in the end (delta: -380.0MB). Peak memory consumption was 178.9MB. Max. memory is 16.0GB. [2023-01-28 06:58:50,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 404.8MB. Free memory is still 353.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 493.67ms. Allocated memory is still 633.3MB. Free memory was 584.4MB in the beginning and 559.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.47ms. Allocated memory is still 633.3MB. Free memory was 559.6MB in the beginning and 556.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.27ms. Allocated memory is still 633.3MB. Free memory was 556.2MB in the beginning and 554.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 693.94ms. Allocated memory is still 633.3MB. Free memory was 554.1MB in the beginning and 575.9MB in the end (delta: -21.8MB). Peak memory consumption was 34.4MB. Max. memory is 16.0GB. * TraceAbstraction took 15462.03ms. Allocated memory was 633.3MB in the beginning and 1.2GB in the end (delta: 557.8MB). Free memory was 575.9MB in the beginning and 955.9MB in the end (delta: -380.0MB). Peak memory consumption was 178.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1156 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 3494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1103, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 578, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1103, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 578, unknown conditional: 0, unknown unconditional: 578] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, 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, 110 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: 15.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1450 IncrementalHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 5 mSDtfsCounter, 1450 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=530occurred in iteration=8, InterpolantAutomatonStates: 81, 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, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 3275 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 06:58:50,815 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...