/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 BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:44:33,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:44:33,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:44:33,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 00:44:33,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 00:44:33,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 00:44:33,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 00:44:33,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 00:44:33,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 00:44:33,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 00:44:33,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 00:44:33,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 00:44:33,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:44:33,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:44:33,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:44:33,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:44:33,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:44:33,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:44:33,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:44:33,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:44:33,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:44:33,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:44:33,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:44:33,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:44:33,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 00:44:33,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 00:44:33,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 00:44:33,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 00:44:33,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 00:44:33,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 00:44:33,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 00:44:33,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 00:44:33,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 00:44:33,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 00:44:33,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 00:44:33,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 00:44:33,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 00:44:33,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 00:44:33,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:44:33,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:44:33,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:44:33,516 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 00:44:33,541 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:44:33,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:44:33,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:44:33,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:44:33,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:44:33,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:44:33,543 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:44:33,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:44:33,543 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:44:33,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:44:33,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:44:33,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:44:33,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:44:33,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:44:33,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:44:33,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:44:33,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:44:33,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:44:33,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:44:33,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:44:33,774 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:44:33,774 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:44:33,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-28 00:44:34,809 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:44:35,038 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:44:35,039 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-28 00:44:35,050 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab8b3ac7/1d1c8807ef6f49948e66d533387c884c/FLAGfec25219e [2023-01-28 00:44:35,062 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ab8b3ac7/1d1c8807ef6f49948e66d533387c884c [2023-01-28 00:44:35,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:44:35,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:44:35,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:44:35,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:44:35,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:44:35,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ead1c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35, skipping insertion in model container [2023-01-28 00:44:35,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:44:35,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:44:35,195 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2023-01-28 00:44:35,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:44:35,323 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:44:35,331 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i[944,957] [2023-01-28 00:44:35,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:44:35,434 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:44:35,434 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:44:35,439 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:44:35,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35 WrapperNode [2023-01-28 00:44:35,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:44:35,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:44:35,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:44:35,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:44:35,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,504 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-01-28 00:44:35,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:44:35,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:44:35,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:44:35,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:44:35,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:44:35,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:44:35,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:44:35,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:44:35,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (1/1) ... [2023-01-28 00:44:35,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:44:35,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:44:35,602 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 00:44:35,620 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 00:44:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:44:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 00:44:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:44:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:44:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:44:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 00:44:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 00:44:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 00:44:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 00:44:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:44:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 00:44:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:44:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:44:35,635 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 00:44:35,782 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:44:35,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:44:36,037 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:44:36,170 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:44:36,170 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 00:44:36,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:44:36 BoogieIcfgContainer [2023-01-28 00:44:36,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:44:36,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:44:36,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:44:36,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:44:36,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:44:35" (1/3) ... [2023-01-28 00:44:36,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd0a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:44:36, skipping insertion in model container [2023-01-28 00:44:36,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:35" (2/3) ... [2023-01-28 00:44:36,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd0a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:44:36, skipping insertion in model container [2023-01-28 00:44:36,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:44:36" (3/3) ... [2023-01-28 00:44:36,178 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-01-28 00:44:36,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:44:36,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 00:44:36,190 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:44:36,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:44:36,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-01-28 00:44:36,281 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-28 00:44:36,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:36,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-28 00:44:36,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-01-28 00:44:36,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-01-28 00:44:36,290 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:44:36,307 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-28 00:44:36,312 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-28 00:44:36,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-01-28 00:44:36,335 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-28 00:44:36,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:36,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-28 00:44:36,337 INFO L119 LiptonReduction]: Number of co-enabled transitions 1244 [2023-01-28 00:44:38,748 INFO L134 LiptonReduction]: Checked pairs total: 4348 [2023-01-28 00:44:38,748 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-01-28 00:44:38,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 00:44:38,791 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;@51cf6146, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:44:38,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 00:44:38,795 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-01-28 00:44:38,795 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:38,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:38,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 00:44:38,797 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 00:44:38,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:38,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1568998742, now seen corresponding path program 1 times [2023-01-28 00:44:38,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:38,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52996548] [2023-01-28 00:44:38,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:38,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:39,048 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 00:44:39,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52996548] [2023-01-28 00:44:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52996548] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:39,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:39,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:44:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502558482] [2023-01-28 00:44:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:39,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:44:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:39,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:44:39,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:44:39,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2023-01-28 00:44:39,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:39,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2023-01-28 00:44:39,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:39,228 INFO L130 PetriNetUnfolder]: 380/639 cut-off events. [2023-01-28 00:44:39,228 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 00:44:39,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1291 conditions, 639 events. 380/639 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2634 event pairs, 90 based on Foata normal form. 35/601 useless extension candidates. Maximal degree in co-relation 1281. Up to 466 conditions per place. [2023-01-28 00:44:39,232 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 4/31 dead transitions. [2023-01-28 00:44:39,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 128 flow [2023-01-28 00:44:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:44:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:44:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-01-28 00:44:39,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207100591715976 [2023-01-28 00:44:39,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-01-28 00:44:39,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-01-28 00:44:39,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:39,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-01-28 00:44:39,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,250 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 264 transitions. [2023-01-28 00:44:39,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 128 flow [2023-01-28 00:44:39,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:39,253 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2023-01-28 00:44:39,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-01-28 00:44:39,256 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-01-28 00:44:39,256 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2023-01-28 00:44:39,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:39,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:39,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:44:39,257 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 00:44:39,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:39,257 INFO L85 PathProgramCache]: Analyzing trace with hash 275037612, now seen corresponding path program 1 times [2023-01-28 00:44:39,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:39,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254748397] [2023-01-28 00:44:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:39,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:39,874 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 00:44:39,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:39,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254748397] [2023-01-28 00:44:39,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254748397] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:39,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:39,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:39,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481066533] [2023-01-28 00:44:39,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:39,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:39,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-28 00:44:39,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:39,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:39,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-28 00:44:39,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:40,040 INFO L130 PetriNetUnfolder]: 305/534 cut-off events. [2023-01-28 00:44:40,040 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 00:44:40,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 534 events. 305/534 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2015 event pairs, 110 based on Foata normal form. 42/576 useless extension candidates. Maximal degree in co-relation 1100. Up to 305 conditions per place. [2023-01-28 00:44:40,045 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 17/43 dead transitions. [2023-01-28 00:44:40,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 182 flow [2023-01-28 00:44:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:44:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:44:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2023-01-28 00:44:40,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42011834319526625 [2023-01-28 00:44:40,049 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2023-01-28 00:44:40,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2023-01-28 00:44:40,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:40,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2023-01-28 00:44:40,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,054 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,055 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 5 states and 355 transitions. [2023-01-28 00:44:40,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 182 flow [2023-01-28 00:44:40,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:40,056 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 54 flow [2023-01-28 00:44:40,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2023-01-28 00:44:40,057 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-01-28 00:44:40,057 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 54 flow [2023-01-28 00:44:40,057 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 00:44:40,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:40,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:40,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:44:40,058 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 00:44:40,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1915642280, now seen corresponding path program 1 times [2023-01-28 00:44:40,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287947508] [2023-01-28 00:44:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:40,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:40,663 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 00:44:40,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287947508] [2023-01-28 00:44:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287947508] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:40,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:40,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415263085] [2023-01-28 00:44:40,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:40,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:40,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:40,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:40,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:40,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-28 00:44:40,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:40,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-28 00:44:40,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:40,821 INFO L130 PetriNetUnfolder]: 256/455 cut-off events. [2023-01-28 00:44:40,822 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-01-28 00:44:40,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 455 events. 256/455 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1630 event pairs, 125 based on Foata normal form. 24/479 useless extension candidates. Maximal degree in co-relation 1014. Up to 226 conditions per place. [2023-01-28 00:44:40,825 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 14/40 dead transitions. [2023-01-28 00:44:40,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 178 flow [2023-01-28 00:44:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:44:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:44:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 352 transitions. [2023-01-28 00:44:40,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4165680473372781 [2023-01-28 00:44:40,827 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 352 transitions. [2023-01-28 00:44:40,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 352 transitions. [2023-01-28 00:44:40,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:40,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 352 transitions. [2023-01-28 00:44:40,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,829 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,829 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 54 flow. Second operand 5 states and 352 transitions. [2023-01-28 00:44:40,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 178 flow [2023-01-28 00:44:40,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-28 00:44:40,831 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 58 flow [2023-01-28 00:44:40,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2023-01-28 00:44:40,832 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-01-28 00:44:40,834 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 58 flow [2023-01-28 00:44:40,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:40,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:40,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:40,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:44:40,835 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 00:44:40,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash -744690788, now seen corresponding path program 1 times [2023-01-28 00:44:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256332783] [2023-01-28 00:44:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:41,517 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 00:44:41,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:41,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256332783] [2023-01-28 00:44:41,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256332783] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:41,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:41,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 00:44:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821406640] [2023-01-28 00:44:41,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:41,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 00:44:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 00:44:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 00:44:41,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 169 [2023-01-28 00:44:41,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 58 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:41,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 169 [2023-01-28 00:44:41,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:41,713 INFO L130 PetriNetUnfolder]: 196/369 cut-off events. [2023-01-28 00:44:41,714 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-28 00:44:41,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 369 events. 196/369 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1399 event pairs, 80 based on Foata normal form. 15/384 useless extension candidates. Maximal degree in co-relation 833. Up to 307 conditions per place. [2023-01-28 00:44:41,715 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 27 selfloop transitions, 7 changer transitions 9/44 dead transitions. [2023-01-28 00:44:41,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 204 flow [2023-01-28 00:44:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:44:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:44:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 521 transitions. [2023-01-28 00:44:41,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44040574809805577 [2023-01-28 00:44:41,717 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 521 transitions. [2023-01-28 00:44:41,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 521 transitions. [2023-01-28 00:44:41,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:41,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 521 transitions. [2023-01-28 00:44:41,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,720 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,720 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 58 flow. Second operand 7 states and 521 transitions. [2023-01-28 00:44:41,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 204 flow [2023-01-28 00:44:41,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 187 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-01-28 00:44:41,721 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 98 flow [2023-01-28 00:44:41,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-01-28 00:44:41,722 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2023-01-28 00:44:41,722 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 98 flow [2023-01-28 00:44:41,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:41,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:41,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:44:41,722 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 00:44:41,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1570032139, now seen corresponding path program 1 times [2023-01-28 00:44:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:41,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373832992] [2023-01-28 00:44:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:41,983 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 00:44:41,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:41,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373832992] [2023-01-28 00:44:41,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373832992] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:41,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:41,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:41,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99693138] [2023-01-28 00:44:41,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:41,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:44:41,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:41,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:44:41,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:44:41,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-28 00:44:41,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:41,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:41,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-28 00:44:41,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:42,065 INFO L130 PetriNetUnfolder]: 111/231 cut-off events. [2023-01-28 00:44:42,066 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-01-28 00:44:42,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 231 events. 111/231 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 822 event pairs, 53 based on Foata normal form. 35/264 useless extension candidates. Maximal degree in co-relation 593. Up to 116 conditions per place. [2023-01-28 00:44:42,066 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 42 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2023-01-28 00:44:42,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 262 flow [2023-01-28 00:44:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 00:44:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 00:44:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-01-28 00:44:42,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896449704142012 [2023-01-28 00:44:42,068 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-01-28 00:44:42,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-01-28 00:44:42,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:42,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-01-28 00:44:42,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,070 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,070 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 98 flow. Second operand 4 states and 331 transitions. [2023-01-28 00:44:42,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 262 flow [2023-01-28 00:44:42,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 00:44:42,072 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 122 flow [2023-01-28 00:44:42,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-01-28 00:44:42,074 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-01-28 00:44:42,074 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 122 flow [2023-01-28 00:44:42,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:42,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:42,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:44:42,074 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 00:44:42,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash 995260082, now seen corresponding path program 1 times [2023-01-28 00:44:42,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:42,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250559684] [2023-01-28 00:44:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:42,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:42,828 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 00:44:42,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:42,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250559684] [2023-01-28 00:44:42,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250559684] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:42,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:42,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 00:44:42,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232019185] [2023-01-28 00:44:42,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:42,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 00:44:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 00:44:42,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-01-28 00:44:42,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-28 00:44:42,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 122 flow. Second operand has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:42,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-28 00:44:42,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:42,985 INFO L130 PetriNetUnfolder]: 62/152 cut-off events. [2023-01-28 00:44:42,986 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-28 00:44:42,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 152 events. 62/152 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 471 event pairs, 36 based on Foata normal form. 5/157 useless extension candidates. Maximal degree in co-relation 464. Up to 131 conditions per place. [2023-01-28 00:44:42,987 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 26 selfloop transitions, 8 changer transitions 5/40 dead transitions. [2023-01-28 00:44:42,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 250 flow [2023-01-28 00:44:42,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:44:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:44:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 499 transitions. [2023-01-28 00:44:42,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42180896027049875 [2023-01-28 00:44:42,988 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 499 transitions. [2023-01-28 00:44:42,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 499 transitions. [2023-01-28 00:44:42,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:42,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 499 transitions. [2023-01-28 00:44:42,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,991 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,991 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 122 flow. Second operand 7 states and 499 transitions. [2023-01-28 00:44:42,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 250 flow [2023-01-28 00:44:42,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 238 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:42,992 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 153 flow [2023-01-28 00:44:42,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2023-01-28 00:44:42,993 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-28 00:44:42,993 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 153 flow [2023-01-28 00:44:42,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:42,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:42,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:42,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:44:42,994 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 00:44:42,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:42,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2104896819, now seen corresponding path program 1 times [2023-01-28 00:44:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:42,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650571696] [2023-01-28 00:44:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:44,099 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 00:44:44,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:44,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650571696] [2023-01-28 00:44:44,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650571696] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:44,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:44,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 00:44:44,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488585267] [2023-01-28 00:44:44,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:44,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 00:44:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:44,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 00:44:44,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-28 00:44:44,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-28 00:44:44,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 153 flow. Second operand has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:44,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-28 00:44:44,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:44,311 INFO L130 PetriNetUnfolder]: 79/189 cut-off events. [2023-01-28 00:44:44,311 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-01-28 00:44:44,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 189 events. 79/189 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 688 event pairs, 26 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 591. Up to 106 conditions per place. [2023-01-28 00:44:44,312 INFO L137 encePairwiseOnDemand]: 160/169 looper letters, 31 selfloop transitions, 11 changer transitions 14/57 dead transitions. [2023-01-28 00:44:44,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 363 flow [2023-01-28 00:44:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 00:44:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 00:44:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 640 transitions. [2023-01-28 00:44:44,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42077580539119 [2023-01-28 00:44:44,313 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 640 transitions. [2023-01-28 00:44:44,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 640 transitions. [2023-01-28 00:44:44,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:44,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 640 transitions. [2023-01-28 00:44:44,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,316 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,316 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 153 flow. Second operand 9 states and 640 transitions. [2023-01-28 00:44:44,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 363 flow [2023-01-28 00:44:44,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 349 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-28 00:44:44,318 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 202 flow [2023-01-28 00:44:44,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2023-01-28 00:44:44,319 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2023-01-28 00:44:44,319 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 202 flow [2023-01-28 00:44:44,319 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 00:44:44,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:44,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:44,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:44:44,320 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 00:44:44,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 783084069, now seen corresponding path program 2 times [2023-01-28 00:44:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:44,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109287701] [2023-01-28 00:44:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:44,542 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 00:44:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109287701] [2023-01-28 00:44:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109287701] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:44,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:44,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:44:44,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523074345] [2023-01-28 00:44:44,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:44,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:44,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:44,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:44,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:44,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-28 00:44:44,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:44,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-28 00:44:44,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:44,619 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-01-28 00:44:44,619 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-28 00:44:44,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 110 events. 43/110 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 322 event pairs, 13 based on Foata normal form. 11/120 useless extension candidates. Maximal degree in co-relation 377. Up to 59 conditions per place. [2023-01-28 00:44:44,620 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 39 selfloop transitions, 6 changer transitions 1/47 dead transitions. [2023-01-28 00:44:44,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 344 flow [2023-01-28 00:44:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:44:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:44:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 393 transitions. [2023-01-28 00:44:44,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650887573964497 [2023-01-28 00:44:44,621 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 393 transitions. [2023-01-28 00:44:44,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 393 transitions. [2023-01-28 00:44:44,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:44,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 393 transitions. [2023-01-28 00:44:44,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,623 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,623 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 202 flow. Second operand 5 states and 393 transitions. [2023-01-28 00:44:44,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 344 flow [2023-01-28 00:44:44,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 312 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-01-28 00:44:44,625 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 197 flow [2023-01-28 00:44:44,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2023-01-28 00:44:44,625 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-01-28 00:44:44,625 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 197 flow [2023-01-28 00:44:44,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:44,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:44,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:44,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:44:44,626 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 00:44:44,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1536431698, now seen corresponding path program 1 times [2023-01-28 00:44:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:44,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283719034] [2023-01-28 00:44:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:44,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:46,554 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 00:44:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283719034] [2023-01-28 00:44:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283719034] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 00:44:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351656870] [2023-01-28 00:44:46,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:46,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 00:44:46,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:46,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 00:44:46,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-01-28 00:44:46,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 169 [2023-01-28 00:44:46,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 197 flow. Second operand has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:46,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:46,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 169 [2023-01-28 00:44:46,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:46,819 INFO L130 PetriNetUnfolder]: 43/123 cut-off events. [2023-01-28 00:44:46,820 INFO L131 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2023-01-28 00:44:46,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 123 events. 43/123 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 392 event pairs, 3 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 433. Up to 55 conditions per place. [2023-01-28 00:44:46,820 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 28 selfloop transitions, 20 changer transitions 10/59 dead transitions. [2023-01-28 00:44:46,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 435 flow [2023-01-28 00:44:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 00:44:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 00:44:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 624 transitions. [2023-01-28 00:44:46,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2023-01-28 00:44:46,822 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 624 transitions. [2023-01-28 00:44:46,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 624 transitions. [2023-01-28 00:44:46,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:46,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 624 transitions. [2023-01-28 00:44:46,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.33333333333333) internal successors, (624), 9 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:46,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:46,825 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:46,825 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 197 flow. Second operand 9 states and 624 transitions. [2023-01-28 00:44:46,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 435 flow [2023-01-28 00:44:46,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 362 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-01-28 00:44:46,828 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 270 flow [2023-01-28 00:44:46,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=270, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-28 00:44:46,828 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2023-01-28 00:44:46,828 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 270 flow [2023-01-28 00:44:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:46,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:46,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:44:46,830 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 00:44:46,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:46,830 INFO L85 PathProgramCache]: Analyzing trace with hash 152097626, now seen corresponding path program 2 times [2023-01-28 00:44:46,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23150059] [2023-01-28 00:44:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:46,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:47,112 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 00:44:47,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:47,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23150059] [2023-01-28 00:44:47,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23150059] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:47,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:47,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:44:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833119663] [2023-01-28 00:44:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:47,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:47,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:47,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 169 [2023-01-28 00:44:47,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:47,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:47,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 169 [2023-01-28 00:44:47,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:47,204 INFO L130 PetriNetUnfolder]: 52/139 cut-off events. [2023-01-28 00:44:47,205 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-01-28 00:44:47,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 139 events. 52/139 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 454 event pairs, 9 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 530. Up to 68 conditions per place. [2023-01-28 00:44:47,205 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 26 selfloop transitions, 1 changer transitions 39/66 dead transitions. [2023-01-28 00:44:47,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 532 flow [2023-01-28 00:44:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:44:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:44:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 383 transitions. [2023-01-28 00:44:47,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532544378698225 [2023-01-28 00:44:47,206 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 383 transitions. [2023-01-28 00:44:47,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 383 transitions. [2023-01-28 00:44:47,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:47,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 383 transitions. [2023-01-28 00:44:47,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:47,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:47,208 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:47,209 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 270 flow. Second operand 5 states and 383 transitions. [2023-01-28 00:44:47,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 532 flow [2023-01-28 00:44:47,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 469 flow, removed 23 selfloop flow, removed 5 redundant places. [2023-01-28 00:44:47,211 INFO L231 Difference]: Finished difference. Result has 58 places, 27 transitions, 129 flow [2023-01-28 00:44:47,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=58, PETRI_TRANSITIONS=27} [2023-01-28 00:44:47,212 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2023-01-28 00:44:47,213 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 27 transitions, 129 flow [2023-01-28 00:44:47,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:47,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:47,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:47,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:44:47,213 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 00:44:47,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:47,213 INFO L85 PathProgramCache]: Analyzing trace with hash 319043860, now seen corresponding path program 3 times [2023-01-28 00:44:47,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:47,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184303095] [2023-01-28 00:44:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:47,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:48,333 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 00:44:48,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:48,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184303095] [2023-01-28 00:44:48,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184303095] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:48,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:48,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 00:44:48,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417557991] [2023-01-28 00:44:48,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:48,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 00:44:48,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 00:44:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-28 00:44:48,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 169 [2023-01-28 00:44:48,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 27 transitions, 129 flow. Second operand has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:48,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:48,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 169 [2023-01-28 00:44:48,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:48,501 INFO L130 PetriNetUnfolder]: 15/65 cut-off events. [2023-01-28 00:44:48,502 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-01-28 00:44:48,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 65 events. 15/65 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 8 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 215. Up to 20 conditions per place. [2023-01-28 00:44:48,502 INFO L137 encePairwiseOnDemand]: 161/169 looper letters, 15 selfloop transitions, 5 changer transitions 15/36 dead transitions. [2023-01-28 00:44:48,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 36 transitions, 233 flow [2023-01-28 00:44:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 00:44:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 00:44:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 550 transitions. [2023-01-28 00:44:48,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068047337278107 [2023-01-28 00:44:48,504 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 550 transitions. [2023-01-28 00:44:48,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 550 transitions. [2023-01-28 00:44:48,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:48,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 550 transitions. [2023-01-28 00:44:48,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.75) internal successors, (550), 8 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:48,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:48,506 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:48,506 INFO L175 Difference]: Start difference. First operand has 58 places, 27 transitions, 129 flow. Second operand 8 states and 550 transitions. [2023-01-28 00:44:48,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 36 transitions, 233 flow [2023-01-28 00:44:48,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 201 flow, removed 9 selfloop flow, removed 13 redundant places. [2023-01-28 00:44:48,507 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 94 flow [2023-01-28 00:44:48,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-01-28 00:44:48,508 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-28 00:44:48,508 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 94 flow [2023-01-28 00:44:48,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:48,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:48,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:48,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:44:48,508 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 00:44:48,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash -189233210, now seen corresponding path program 4 times [2023-01-28 00:44:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:48,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012276150] [2023-01-28 00:44:48,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:48,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:50,828 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 00:44:50,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:50,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012276150] [2023-01-28 00:44:50,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012276150] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:50,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:50,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-01-28 00:44:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471856838] [2023-01-28 00:44:50,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:50,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-28 00:44:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-28 00:44:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-01-28 00:44:50,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 169 [2023-01-28 00:44:50,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 94 flow. Second operand has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:50,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:50,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 169 [2023-01-28 00:44:50,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:51,263 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-28 00:44:51,263 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 00:44:51,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 40 events. 8/40 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 127. Up to 15 conditions per place. [2023-01-28 00:44:51,263 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-01-28 00:44:51,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 149 flow [2023-01-28 00:44:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 00:44:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 00:44:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 622 transitions. [2023-01-28 00:44:51,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3680473372781065 [2023-01-28 00:44:51,265 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 622 transitions. [2023-01-28 00:44:51,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 622 transitions. [2023-01-28 00:44:51,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:51,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 622 transitions. [2023-01-28 00:44:51,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.2) internal successors, (622), 10 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:51,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:51,268 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:51,268 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 94 flow. Second operand 10 states and 622 transitions. [2023-01-28 00:44:51,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 149 flow [2023-01-28 00:44:51,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 24 transitions, 127 flow, removed 2 selfloop flow, removed 10 redundant places. [2023-01-28 00:44:51,269 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-01-28 00:44:51,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-01-28 00:44:51,269 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2023-01-28 00:44:51,269 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-01-28 00:44:51,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:51,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 00:44:51,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 00:44:51,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 00:44:51,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 00:44:51,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 00:44:51,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:44:51,272 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:51,275 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 00:44:51,276 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 00:44:51,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:44:51 BasicIcfg [2023-01-28 00:44:51,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 00:44:51,278 INFO L158 Benchmark]: Toolchain (without parser) took 16212.93ms. Allocated memory was 622.9MB in the beginning and 1.2GB in the end (delta: 545.3MB). Free memory was 571.1MB in the beginning and 1.1GB in the end (delta: -513.2MB). Peak memory consumption was 35.2MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,278 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 311.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:44:51,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.29ms. Allocated memory is still 622.9MB. Free memory was 571.1MB in the beginning and 545.6MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.91ms. Allocated memory is still 622.9MB. Free memory was 545.6MB in the beginning and 542.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,278 INFO L158 Benchmark]: Boogie Preprocessor took 26.30ms. Allocated memory is still 622.9MB. Free memory was 542.4MB in the beginning and 540.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,279 INFO L158 Benchmark]: RCFGBuilder took 640.68ms. Allocated memory is still 622.9MB. Free memory was 540.3MB in the beginning and 560.8MB in the end (delta: -20.5MB). Peak memory consumption was 32.3MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,279 INFO L158 Benchmark]: TraceAbstraction took 15103.64ms. Allocated memory was 622.9MB in the beginning and 1.2GB in the end (delta: 545.3MB). Free memory was 559.8MB in the beginning and 1.1GB in the end (delta: -524.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.0GB. [2023-01-28 00:44:51,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory is still 311.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 373.29ms. Allocated memory is still 622.9MB. Free memory was 571.1MB in the beginning and 545.6MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.91ms. Allocated memory is still 622.9MB. Free memory was 545.6MB in the beginning and 542.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.30ms. Allocated memory is still 622.9MB. Free memory was 542.4MB in the beginning and 540.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 640.68ms. Allocated memory is still 622.9MB. Free memory was 540.3MB in the beginning and 560.8MB in the end (delta: -20.5MB). Peak memory consumption was 32.3MB. Max. memory is 16.0GB. * TraceAbstraction took 15103.64ms. Allocated memory was 622.9MB in the beginning and 1.2GB in the end (delta: 545.3MB). Free memory was 559.8MB in the beginning and 1.1GB in the end (delta: -524.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 95 PlacesBefore, 29 PlacesAfterwards, 90 TransitionsBefore, 23 TransitionsAfterwards, 1244 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 4348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1805, independent: 1601, independent conditional: 0, independent unconditional: 1601, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 681, independent: 652, independent conditional: 0, independent unconditional: 652, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1805, independent: 949, independent conditional: 0, independent unconditional: 949, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 681, unknown conditional: 0, unknown unconditional: 681] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 5 mSDtfsCounter, 1446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=9, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 3033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 00:44:51,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...