/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/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:44:11,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:44:11,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:44:11,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:44:11,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:44:11,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:44:11,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:44:11,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:44:11,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:44:11,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:44:11,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:44:11,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:44:11,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:44:11,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:44:11,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:44:11,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:44:11,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:44:11,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:44:11,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:44:11,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:44:11,732 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 00:44:11,755 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:44:11,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:44:11,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:44:11,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:44:11,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:44:11,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:44:11,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:44:11,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:44:11,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:44:11,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:44:11,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:44:11,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:44:11,760 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:44:11,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:44:11,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:44:11,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:44:11,952 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:44:11,954 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:44:11,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-28 00:44:12,865 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:44:13,141 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:44:13,142 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-28 00:44:13,152 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa67d9542/b8cdaf0783fb46399a62930aa5a46b70/FLAG2a608cd34 [2023-01-28 00:44:13,439 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa67d9542/b8cdaf0783fb46399a62930aa5a46b70 [2023-01-28 00:44:13,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:44:13,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:44:13,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:44:13,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:44:13,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:44:13,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a01c6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13, skipping insertion in model container [2023-01-28 00:44:13,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:44:13,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:44:13,584 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-01-28 00:44:13,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:44:13,781 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:44:13,790 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-01-28 00:44:13,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:44:13,868 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:44:13,868 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:44:13,873 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:44:13,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13 WrapperNode [2023-01-28 00:44:13,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:44:13,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:44:13,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:44:13,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:44:13,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,928 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-01-28 00:44:13,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:44:13,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:44:13,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:44:13,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:44:13,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:44:13,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:44:13,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:44:13,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:44:13,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (1/1) ... [2023-01-28 00:44:13,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:44:13,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:44:13,998 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 00:44:14,004 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 00:44:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:44:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 00:44:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:44:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:44:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:44:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 00:44:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 00:44:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 00:44:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 00:44:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:44:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 00:44:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:44:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:44:14,027 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 00:44:14,161 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:44:14,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:44:14,446 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:44:14,649 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:44:14,649 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 00:44:14,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:44:14 BoogieIcfgContainer [2023-01-28 00:44:14,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:44:14,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:44:14,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:44:14,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:44:14,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:44:13" (1/3) ... [2023-01-28 00:44:14,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed8b45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:44:14, skipping insertion in model container [2023-01-28 00:44:14,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:44:13" (2/3) ... [2023-01-28 00:44:14,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed8b45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:44:14, skipping insertion in model container [2023-01-28 00:44:14,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:44:14" (3/3) ... [2023-01-28 00:44:14,656 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-01-28 00:44:14,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:44:14,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 00:44:14,667 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:44:14,770 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:44:14,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2023-01-28 00:44:14,820 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-28 00:44:14,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:14,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-28 00:44:14,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2023-01-28 00:44:14,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2023-01-28 00:44:14,828 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:44:14,834 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-28 00:44:14,836 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-28 00:44:14,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 182 flow [2023-01-28 00:44:14,851 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-28 00:44:14,852 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:14,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-28 00:44:14,853 INFO L119 LiptonReduction]: Number of co-enabled transitions 1156 [2023-01-28 00:44:17,056 INFO L134 LiptonReduction]: Checked pairs total: 3494 [2023-01-28 00:44:17,056 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-28 00:44:17,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 00:44:17,071 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;@4a99d0de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:44:17,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 00:44:17,078 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-01-28 00:44:17,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:44:17,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:17,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 00:44:17,080 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 00:44:17,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1153820224, now seen corresponding path program 1 times [2023-01-28 00:44:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:17,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36649778] [2023-01-28 00:44:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:17,461 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 00:44:17,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:17,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36649778] [2023-01-28 00:44:17,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36649778] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:17,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:17,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:44:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459052110] [2023-01-28 00:44:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:17,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:44:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:44:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:44:17,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 166 [2023-01-28 00:44:17,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:17,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:17,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 166 [2023-01-28 00:44:17,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:17,613 INFO L130 PetriNetUnfolder]: 294/501 cut-off events. [2023-01-28 00:44:17,614 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 00:44:17,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 501 events. 294/501 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2036 event pairs, 69 based on Foata normal form. 28/472 useless extension candidates. Maximal degree in co-relation 1004. Up to 366 conditions per place. [2023-01-28 00:44:17,617 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2023-01-28 00:44:17,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-01-28 00:44:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:44:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:44:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-01-28 00:44:17,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200803212851406 [2023-01-28 00:44:17,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-01-28 00:44:17,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-01-28 00:44:17,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:17,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-01-28 00:44:17,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:17,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:17,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:17,634 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 259 transitions. [2023-01-28 00:44:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-01-28 00:44:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:17,637 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-01-28 00:44:17,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-01-28 00:44:17,640 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-01-28 00:44:17,640 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-01-28 00:44:17,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:17,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:17,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:17,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:44:17,641 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 00:44:17,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash 721288587, now seen corresponding path program 1 times [2023-01-28 00:44:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:17,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767569205] [2023-01-28 00:44:17,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:18,449 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 00:44:18,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:18,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767569205] [2023-01-28 00:44:18,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767569205] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:18,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:18,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:18,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183387457] [2023-01-28 00:44:18,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:18,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:18,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:18,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:18,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 00:44:18,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:18,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:18,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 00:44:18,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:18,724 INFO L130 PetriNetUnfolder]: 337/591 cut-off events. [2023-01-28 00:44:18,724 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 00:44:18,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 591 events. 337/591 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2397 event pairs, 100 based on Foata normal form. 41/632 useless extension candidates. Maximal degree in co-relation 1224. Up to 439 conditions per place. [2023-01-28 00:44:18,727 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 27 selfloop transitions, 10 changer transitions 22/59 dead transitions. [2023-01-28 00:44:18,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 59 transitions, 254 flow [2023-01-28 00:44:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:44:18,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:44:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2023-01-28 00:44:18,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4268502581755594 [2023-01-28 00:44:18,730 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 496 transitions. [2023-01-28 00:44:18,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 496 transitions. [2023-01-28 00:44:18,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:18,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 496 transitions. [2023-01-28 00:44:18,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:18,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:18,734 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:18,734 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 496 transitions. [2023-01-28 00:44:18,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 59 transitions, 254 flow [2023-01-28 00:44:18,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:18,736 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 117 flow [2023-01-28 00:44:18,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-01-28 00:44:18,736 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2023-01-28 00:44:18,737 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 117 flow [2023-01-28 00:44:18,737 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 00:44:18,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:18,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:18,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:44:18,737 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 00:44:18,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash 885095490, now seen corresponding path program 1 times [2023-01-28 00:44:18,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:18,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027137548] [2023-01-28 00:44:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:19,356 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 00:44:19,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027137548] [2023-01-28 00:44:19,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027137548] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:19,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:19,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351553862] [2023-01-28 00:44:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:19,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:19,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:19,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:19,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 00:44:19,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:19,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:19,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 00:44:19,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:19,547 INFO L130 PetriNetUnfolder]: 271/481 cut-off events. [2023-01-28 00:44:19,547 INFO L131 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2023-01-28 00:44:19,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 481 events. 271/481 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1814 event pairs, 89 based on Foata normal form. 39/520 useless extension candidates. Maximal degree in co-relation 1506. Up to 229 conditions per place. [2023-01-28 00:44:19,549 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 30 selfloop transitions, 7 changer transitions 21/58 dead transitions. [2023-01-28 00:44:19,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 58 transitions, 365 flow [2023-01-28 00:44:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:44:19,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:44:19,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 485 transitions. [2023-01-28 00:44:19,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4173838209982788 [2023-01-28 00:44:19,551 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 485 transitions. [2023-01-28 00:44:19,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 485 transitions. [2023-01-28 00:44:19,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:19,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 485 transitions. [2023-01-28 00:44:19,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:19,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:19,554 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:19,554 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 117 flow. Second operand 7 states and 485 transitions. [2023-01-28 00:44:19,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 58 transitions, 365 flow [2023-01-28 00:44:19,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 357 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-01-28 00:44:19,557 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 174 flow [2023-01-28 00:44:19,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2023-01-28 00:44:19,558 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2023-01-28 00:44:19,558 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 174 flow [2023-01-28 00:44:19,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:19,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:19,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:19,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:44:19,558 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 00:44:19,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:19,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1532632972, now seen corresponding path program 1 times [2023-01-28 00:44:19,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:19,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241464156] [2023-01-28 00:44:19,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:19,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:20,473 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 00:44:20,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:20,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241464156] [2023-01-28 00:44:20,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241464156] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:20,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:20,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 00:44:20,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456967147] [2023-01-28 00:44:20,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:20,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 00:44:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 00:44:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 00:44:20,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 166 [2023-01-28 00:44:20,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 174 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:20,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:20,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 166 [2023-01-28 00:44:20,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:20,663 INFO L130 PetriNetUnfolder]: 211/387 cut-off events. [2023-01-28 00:44:20,663 INFO L131 PetriNetUnfolder]: For 597/618 co-relation queries the response was YES. [2023-01-28 00:44:20,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 387 events. 211/387 cut-off events. For 597/618 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1446 event pairs, 48 based on Foata normal form. 32/415 useless extension candidates. Maximal degree in co-relation 1369. Up to 318 conditions per place. [2023-01-28 00:44:20,666 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 36 selfloop transitions, 9 changer transitions 10/58 dead transitions. [2023-01-28 00:44:20,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 403 flow [2023-01-28 00:44:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 00:44:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 00:44:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 582 transitions. [2023-01-28 00:44:20,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4382530120481928 [2023-01-28 00:44:20,668 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 582 transitions. [2023-01-28 00:44:20,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 582 transitions. [2023-01-28 00:44:20,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:20,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 582 transitions. [2023-01-28 00:44:20,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:20,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:20,677 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:20,677 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 174 flow. Second operand 8 states and 582 transitions. [2023-01-28 00:44:20,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 403 flow [2023-01-28 00:44:20,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 385 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 00:44:20,682 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 239 flow [2023-01-28 00:44:20,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-01-28 00:44:20,683 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 20 predicate places. [2023-01-28 00:44:20,683 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 239 flow [2023-01-28 00:44:20,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:20,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:20,684 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:20,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:44:20,684 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 00:44:20,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:20,685 INFO L85 PathProgramCache]: Analyzing trace with hash 848568254, now seen corresponding path program 1 times [2023-01-28 00:44:20,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:20,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340828449] [2023-01-28 00:44:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:20,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:21,117 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 00:44:21,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:21,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340828449] [2023-01-28 00:44:21,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340828449] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:21,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:21,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:44:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195856979] [2023-01-28 00:44:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:44:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:44:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:44:21,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-28 00:44:21,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:21,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:21,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-28 00:44:21,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:21,185 INFO L130 PetriNetUnfolder]: 66/153 cut-off events. [2023-01-28 00:44:21,186 INFO L131 PetriNetUnfolder]: For 235/244 co-relation queries the response was YES. [2023-01-28 00:44:21,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 153 events. 66/153 cut-off events. For 235/244 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 479 event pairs, 9 based on Foata normal form. 30/181 useless extension candidates. Maximal degree in co-relation 591. Up to 94 conditions per place. [2023-01-28 00:44:21,187 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 42 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2023-01-28 00:44:21,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 388 flow [2023-01-28 00:44:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:44:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:44:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-01-28 00:44:21,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4979919678714859 [2023-01-28 00:44:21,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-01-28 00:44:21,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-01-28 00:44:21,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:21,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-01-28 00:44:21,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:21,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:21,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:21,190 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 239 flow. Second operand 3 states and 248 transitions. [2023-01-28 00:44:21,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 388 flow [2023-01-28 00:44:21,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 364 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-01-28 00:44:21,192 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 229 flow [2023-01-28 00:44:21,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-01-28 00:44:21,194 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 17 predicate places. [2023-01-28 00:44:21,194 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 229 flow [2023-01-28 00:44:21,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:21,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:21,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:21,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:44:21,194 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 00:44:21,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:21,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1010908484, now seen corresponding path program 1 times [2023-01-28 00:44:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:21,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574476125] [2023-01-28 00:44:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:21,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:22,314 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 00:44:22,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:22,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574476125] [2023-01-28 00:44:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574476125] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:22,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-28 00:44:22,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427278927] [2023-01-28 00:44:22,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:22,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 00:44:22,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:22,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 00:44:22,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-28 00:44:22,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-28 00:44:22,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 229 flow. Second operand has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:22,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:22,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-28 00:44:22,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:22,534 INFO L130 PetriNetUnfolder]: 66/159 cut-off events. [2023-01-28 00:44:22,534 INFO L131 PetriNetUnfolder]: For 171/178 co-relation queries the response was YES. [2023-01-28 00:44:22,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 159 events. 66/159 cut-off events. For 171/178 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 493 event pairs, 21 based on Foata normal form. 11/170 useless extension candidates. Maximal degree in co-relation 626. Up to 124 conditions per place. [2023-01-28 00:44:22,535 INFO L137 encePairwiseOnDemand]: 157/166 looper letters, 33 selfloop transitions, 16 changer transitions 4/56 dead transitions. [2023-01-28 00:44:22,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 56 transitions, 426 flow [2023-01-28 00:44:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 00:44:22,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 00:44:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2023-01-28 00:44:22,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42409638554216866 [2023-01-28 00:44:22,538 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 704 transitions. [2023-01-28 00:44:22,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 704 transitions. [2023-01-28 00:44:22,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:22,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 704 transitions. [2023-01-28 00:44:22,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.4) internal successors, (704), 10 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:22,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:22,541 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:22,541 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 229 flow. Second operand 10 states and 704 transitions. [2023-01-28 00:44:22,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 56 transitions, 426 flow [2023-01-28 00:44:22,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 00:44:22,543 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 321 flow [2023-01-28 00:44:22,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=321, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-28 00:44:22,545 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 29 predicate places. [2023-01-28 00:44:22,545 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 321 flow [2023-01-28 00:44:22,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:22,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:22,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:22,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:44:22,546 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 00:44:22,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:22,546 INFO L85 PathProgramCache]: Analyzing trace with hash 36994820, now seen corresponding path program 1 times [2023-01-28 00:44:22,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:22,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135523854] [2023-01-28 00:44:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:22,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:23,320 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 00:44:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:23,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135523854] [2023-01-28 00:44:23,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135523854] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:23,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:23,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 00:44:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208830446] [2023-01-28 00:44:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:23,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 00:44:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 00:44:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-01-28 00:44:23,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-28 00:44:23,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 321 flow. Second operand has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:23,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:23,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-28 00:44:23,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:23,587 INFO L130 PetriNetUnfolder]: 98/236 cut-off events. [2023-01-28 00:44:23,587 INFO L131 PetriNetUnfolder]: For 481/494 co-relation queries the response was YES. [2023-01-28 00:44:23,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 236 events. 98/236 cut-off events. For 481/494 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 931 event pairs, 15 based on Foata normal form. 18/254 useless extension candidates. Maximal degree in co-relation 1042. Up to 118 conditions per place. [2023-01-28 00:44:23,589 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 49 selfloop transitions, 15 changer transitions 14/81 dead transitions. [2023-01-28 00:44:23,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 81 transitions, 721 flow [2023-01-28 00:44:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 00:44:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 00:44:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2023-01-28 00:44:23,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43448795180722893 [2023-01-28 00:44:23,591 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 577 transitions. [2023-01-28 00:44:23,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 577 transitions. [2023-01-28 00:44:23,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:23,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 577 transitions. [2023-01-28 00:44:23,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:23,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:23,593 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:23,593 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 321 flow. Second operand 8 states and 577 transitions. [2023-01-28 00:44:23,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 81 transitions, 721 flow [2023-01-28 00:44:23,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 677 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-01-28 00:44:23,596 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 390 flow [2023-01-28 00:44:23,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2023-01-28 00:44:23,597 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-28 00:44:23,597 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 390 flow [2023-01-28 00:44:23,597 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 00:44:23,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:23,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:23,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:44:23,598 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 00:44:23,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1634806898, now seen corresponding path program 2 times [2023-01-28 00:44:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:23,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961302906] [2023-01-28 00:44:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:25,079 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 00:44:25,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:25,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961302906] [2023-01-28 00:44:25,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961302906] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:25,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:25,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-28 00:44:25,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074424577] [2023-01-28 00:44:25,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:25,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 00:44:25,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:25,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 00:44:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-28 00:44:25,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2023-01-28 00:44:25,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 390 flow. Second operand has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:25,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2023-01-28 00:44:25,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:25,560 INFO L130 PetriNetUnfolder]: 127/311 cut-off events. [2023-01-28 00:44:25,560 INFO L131 PetriNetUnfolder]: For 901/921 co-relation queries the response was YES. [2023-01-28 00:44:25,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 311 events. 127/311 cut-off events. For 901/921 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1427 event pairs, 31 based on Foata normal form. 24/334 useless extension candidates. Maximal degree in co-relation 1461. Up to 162 conditions per place. [2023-01-28 00:44:25,562 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 50 selfloop transitions, 24 changer transitions 14/91 dead transitions. [2023-01-28 00:44:25,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 865 flow [2023-01-28 00:44:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 00:44:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 00:44:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 633 transitions. [2023-01-28 00:44:25,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42369477911646586 [2023-01-28 00:44:25,566 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 633 transitions. [2023-01-28 00:44:25,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 633 transitions. [2023-01-28 00:44:25,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:25,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 633 transitions. [2023-01-28 00:44:25,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,570 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,570 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 390 flow. Second operand 9 states and 633 transitions. [2023-01-28 00:44:25,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 865 flow [2023-01-28 00:44:25,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 833 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-01-28 00:44:25,575 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 530 flow [2023-01-28 00:44:25,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=530, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2023-01-28 00:44:25,577 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 41 predicate places. [2023-01-28 00:44:25,577 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 530 flow [2023-01-28 00:44:25,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:25,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:25,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:44:25,577 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 00:44:25,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash 964595912, now seen corresponding path program 3 times [2023-01-28 00:44:25,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:25,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895749603] [2023-01-28 00:44:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:25,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:25,754 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 00:44:25,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:25,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895749603] [2023-01-28 00:44:25,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895749603] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:25,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:25,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:44:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810722173] [2023-01-28 00:44:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:25,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:44:25,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:25,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:44:25,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:44:25,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-28 00:44:25,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:25,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-28 00:44:25,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:25,817 INFO L130 PetriNetUnfolder]: 55/157 cut-off events. [2023-01-28 00:44:25,818 INFO L131 PetriNetUnfolder]: For 601/609 co-relation queries the response was YES. [2023-01-28 00:44:25,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 157 events. 55/157 cut-off events. For 601/609 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 625 event pairs, 6 based on Foata normal form. 32/188 useless extension candidates. Maximal degree in co-relation 834. Up to 82 conditions per place. [2023-01-28 00:44:25,819 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 50 selfloop transitions, 5 changer transitions 11/69 dead transitions. [2023-01-28 00:44:25,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 784 flow [2023-01-28 00:44:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 00:44:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 00:44:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-01-28 00:44:25,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48343373493975905 [2023-01-28 00:44:25,820 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-01-28 00:44:25,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-01-28 00:44:25,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:25,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-01-28 00:44:25,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,823 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,823 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 530 flow. Second operand 4 states and 321 transitions. [2023-01-28 00:44:25,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 784 flow [2023-01-28 00:44:25,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 674 flow, removed 35 selfloop flow, removed 7 redundant places. [2023-01-28 00:44:25,826 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 353 flow [2023-01-28 00:44:25,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=353, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2023-01-28 00:44:25,827 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 37 predicate places. [2023-01-28 00:44:25,827 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 353 flow [2023-01-28 00:44:25,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:25,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:25,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:25,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:44:25,828 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 00:44:25,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:25,828 INFO L85 PathProgramCache]: Analyzing trace with hash 741524624, now seen corresponding path program 1 times [2023-01-28 00:44:25,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:25,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878474630] [2023-01-28 00:44:25,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:27,264 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 00:44:27,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:27,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878474630] [2023-01-28 00:44:27,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878474630] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:27,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:27,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 00:44:27,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559561105] [2023-01-28 00:44:27,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:27,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 00:44:27,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:27,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 00:44:27,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-01-28 00:44:27,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 166 [2023-01-28 00:44:27,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 353 flow. Second operand has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:27,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:27,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 166 [2023-01-28 00:44:27,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:27,885 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2023-01-28 00:44:27,885 INFO L131 PetriNetUnfolder]: For 293/299 co-relation queries the response was YES. [2023-01-28 00:44:27,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 103 events. 33/103 cut-off events. For 293/299 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 1 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 481. Up to 44 conditions per place. [2023-01-28 00:44:27,886 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 31 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2023-01-28 00:44:27,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 559 flow [2023-01-28 00:44:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 00:44:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 00:44:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 589 transitions. [2023-01-28 00:44:27,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39424364123159306 [2023-01-28 00:44:27,888 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 589 transitions. [2023-01-28 00:44:27,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 589 transitions. [2023-01-28 00:44:27,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:27,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 589 transitions. [2023-01-28 00:44:27,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 65.44444444444444) internal successors, (589), 9 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:27,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:27,891 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:27,891 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 353 flow. Second operand 9 states and 589 transitions. [2023-01-28 00:44:27,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 559 flow [2023-01-28 00:44:27,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 480 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-01-28 00:44:27,893 INFO L231 Difference]: Finished difference. Result has 66 places, 39 transitions, 279 flow [2023-01-28 00:44:27,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=66, PETRI_TRANSITIONS=39} [2023-01-28 00:44:27,894 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 38 predicate places. [2023-01-28 00:44:27,894 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 39 transitions, 279 flow [2023-01-28 00:44:27,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:27,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:27,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:27,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:44:27,895 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 00:44:27,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:27,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1303551252, now seen corresponding path program 2 times [2023-01-28 00:44:27,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:27,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744993463] [2023-01-28 00:44:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:27,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:29,658 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 00:44:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744993463] [2023-01-28 00:44:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744993463] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:29,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:29,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-28 00:44:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767027473] [2023-01-28 00:44:29,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:29,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-28 00:44:29,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:29,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-28 00:44:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-01-28 00:44:29,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-01-28 00:44:29,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 39 transitions, 279 flow. Second operand has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:29,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:29,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-01-28 00:44:29,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:29,806 INFO L130 PetriNetUnfolder]: 23/83 cut-off events. [2023-01-28 00:44:29,806 INFO L131 PetriNetUnfolder]: For 177/180 co-relation queries the response was YES. [2023-01-28 00:44:29,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 83 events. 23/83 cut-off events. For 177/180 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 220 event pairs, 2 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 363. Up to 43 conditions per place. [2023-01-28 00:44:29,807 INFO L137 encePairwiseOnDemand]: 159/166 looper letters, 28 selfloop transitions, 2 changer transitions 21/53 dead transitions. [2023-01-28 00:44:29,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 53 transitions, 449 flow [2023-01-28 00:44:29,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 00:44:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 00:44:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 538 transitions. [2023-01-28 00:44:29,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40512048192771083 [2023-01-28 00:44:29,808 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 538 transitions. [2023-01-28 00:44:29,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 538 transitions. [2023-01-28 00:44:29,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:29,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 538 transitions. [2023-01-28 00:44:29,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.25) internal successors, (538), 8 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:29,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:29,811 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:29,811 INFO L175 Difference]: Start difference. First operand has 66 places, 39 transitions, 279 flow. Second operand 8 states and 538 transitions. [2023-01-28 00:44:29,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 53 transitions, 449 flow [2023-01-28 00:44:29,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 389 flow, removed 6 selfloop flow, removed 15 redundant places. [2023-01-28 00:44:29,814 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 190 flow [2023-01-28 00:44:29,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2023-01-28 00:44:29,815 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-28 00:44:29,815 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 190 flow [2023-01-28 00:44:29,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:29,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:44:29,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:29,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:44:29,816 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 00:44:29,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:44:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash -291110304, now seen corresponding path program 3 times [2023-01-28 00:44:29,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:44:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628374926] [2023-01-28 00:44:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:44:29,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:44:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:44:30,296 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 00:44:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:44:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628374926] [2023-01-28 00:44:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628374926] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:44:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:44:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:44:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564812149] [2023-01-28 00:44:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:44:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:44:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:44:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:44:30,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:44:30,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-28 00:44:30,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:30,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:44:30,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-28 00:44:30,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:44:30,346 INFO L130 PetriNetUnfolder]: 16/52 cut-off events. [2023-01-28 00:44:30,346 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:44:30,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 52 events. 16/52 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 4 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2023-01-28 00:44:30,346 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-01-28 00:44:30,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 276 flow [2023-01-28 00:44:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:44:30,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:44:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2023-01-28 00:44:30,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2023-01-28 00:44:30,347 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 332 transitions. [2023-01-28 00:44:30,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 332 transitions. [2023-01-28 00:44:30,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:44:30,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 332 transitions. [2023-01-28 00:44:30,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:30,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:30,349 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:30,349 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 190 flow. Second operand 5 states and 332 transitions. [2023-01-28 00:44:30,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 276 flow [2023-01-28 00:44:30,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 240 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-01-28 00:44:30,350 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-01-28 00:44:30,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-01-28 00:44:30,351 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2023-01-28 00:44:30,351 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-01-28 00:44:30,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 00:44:30,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 00:44:30,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 00:44:30,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 00:44:30,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 00:44:30,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 00:44:30,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:44:30,354 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2023-01-28 00:44:30,357 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 00:44:30,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 00:44:30,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:44:30 BasicIcfg [2023-01-28 00:44:30,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 00:44:30,359 INFO L158 Benchmark]: Toolchain (without parser) took 16917.39ms. Allocated memory was 343.9MB in the beginning and 1.0GB in the end (delta: 704.6MB). Free memory was 309.7MB in the beginning and 811.0MB in the end (delta: -501.3MB). Peak memory consumption was 205.0MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,359 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 343.9MB. Free memory is still 290.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:44:30,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.12ms. Allocated memory is still 343.9MB. Free memory was 309.7MB in the beginning and 284.6MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.61ms. Allocated memory is still 343.9MB. Free memory was 284.6MB in the beginning and 281.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,359 INFO L158 Benchmark]: Boogie Preprocessor took 41.90ms. Allocated memory is still 343.9MB. Free memory was 281.6MB in the beginning and 279.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,359 INFO L158 Benchmark]: RCFGBuilder took 679.85ms. Allocated memory is still 343.9MB. Free memory was 279.5MB in the beginning and 230.1MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,360 INFO L158 Benchmark]: TraceAbstraction took 15706.07ms. Allocated memory was 343.9MB in the beginning and 1.0GB in the end (delta: 704.6MB). Free memory was 229.6MB in the beginning and 811.0MB in the end (delta: -581.4MB). Peak memory consumption was 125.3MB. Max. memory is 16.0GB. [2023-01-28 00:44:30,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 343.9MB. Free memory is still 290.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 431.12ms. Allocated memory is still 343.9MB. Free memory was 309.7MB in the beginning and 284.6MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.61ms. Allocated memory is still 343.9MB. Free memory was 284.6MB in the beginning and 281.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.90ms. Allocated memory is still 343.9MB. Free memory was 281.6MB in the beginning and 279.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 679.85ms. Allocated memory is still 343.9MB. Free memory was 279.5MB in the beginning and 230.1MB in the end (delta: 49.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. * TraceAbstraction took 15706.07ms. Allocated memory was 343.9MB in the beginning and 1.0GB in the end (delta: 704.6MB). Free memory was 229.6MB in the beginning and 811.0MB in the end (delta: -581.4MB). Peak memory consumption was 125.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1156 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 3494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1103, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 578, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1103, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 578, unknown conditional: 0, unknown unconditional: 578] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 110 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1450 IncrementalHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 5 mSDtfsCounter, 1450 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=530occurred in iteration=8, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 3275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 00:44:30,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...