/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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:49:02,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:49:02,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:49:03,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:49:03,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:49:03,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:49:03,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:49:03,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:49:03,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:49:03,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:49:03,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:49:03,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:49:03,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:49:03,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:49:03,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:49:03,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:49:03,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:49:03,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:49:03,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:49:03,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:49:03,061 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 00:49:03,083 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:49:03,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:49:03,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:49:03,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:49:03,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:49:03,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:49:03,085 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:49:03,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:49:03,085 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:49:03,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:49:03,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:49:03,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:49:03,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:49:03,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:49:03,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:49:03,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:49:03,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:49:03,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:49:03,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:49:03,285 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:49:03,286 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:49:03,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 00:49:04,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:49:04,390 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:49:04,390 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 00:49:04,397 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/350987e30/376588a20d5c431b8392e6ede7a6d903/FLAG719c51266 [2023-01-28 00:49:04,406 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/350987e30/376588a20d5c431b8392e6ede7a6d903 [2023-01-28 00:49:04,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:49:04,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:49:04,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:49:04,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:49:04,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:49:04,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc3fd4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04, skipping insertion in model container [2023-01-28 00:49:04,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:49:04,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:49:04,579 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-01-28 00:49:04,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:49:04,739 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:49:04,748 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-01-28 00:49:04,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:49:04,806 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:49:04,806 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:49:04,810 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:49:04,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04 WrapperNode [2023-01-28 00:49:04,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:49:04,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:49:04,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:49:04,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:49:04,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,858 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-01-28 00:49:04,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:49:04,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:49:04,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:49:04,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:49:04,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:49:04,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:49:04,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:49:04,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:49:04,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (1/1) ... [2023-01-28 00:49:04,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:49:04,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:49:04,948 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 00:49:04,953 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 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:49:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 00:49:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 00:49:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-01-28 00:49:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-01-28 00:49:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 00:49:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:49:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:49:04,977 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 00:49:05,066 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:49:05,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:49:05,220 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:49:05,228 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:49:05,228 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 00:49:05,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:49:05 BoogieIcfgContainer [2023-01-28 00:49:05,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:49:05,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:49:05,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:49:05,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:49:05,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:49:04" (1/3) ... [2023-01-28 00:49:05,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3070d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:49:05, skipping insertion in model container [2023-01-28 00:49:05,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:49:04" (2/3) ... [2023-01-28 00:49:05,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3070d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:49:05, skipping insertion in model container [2023-01-28 00:49:05,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:49:05" (3/3) ... [2023-01-28 00:49:05,234 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 00:49:05,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:49:05,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:49:05,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:49:05,319 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:49:05,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 100 transitions, 220 flow [2023-01-28 00:49:05,375 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-01-28 00:49:05,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:49:05,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-01-28 00:49:05,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 100 transitions, 220 flow [2023-01-28 00:49:05,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 82 transitions, 176 flow [2023-01-28 00:49:05,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:49:05,393 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 82 transitions, 176 flow [2023-01-28 00:49:05,395 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 82 transitions, 176 flow [2023-01-28 00:49:05,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 82 transitions, 176 flow [2023-01-28 00:49:05,422 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2023-01-28 00:49:05,422 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:49:05,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 45 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-01-28 00:49:05,423 INFO L119 LiptonReduction]: Number of co-enabled transitions 1542 [2023-01-28 00:49:07,219 INFO L134 LiptonReduction]: Checked pairs total: 2647 [2023-01-28 00:49:07,219 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-01-28 00:49:07,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 00:49:07,232 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;@6055dc26, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:49:07,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 00:49:07,236 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2023-01-28 00:49:07,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:49:07,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:07,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:07,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:07,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1399399724, now seen corresponding path program 1 times [2023-01-28 00:49:07,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:07,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360745487] [2023-01-28 00:49:07,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:07,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:07,645 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 00:49:07,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:07,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360745487] [2023-01-28 00:49:07,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360745487] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:07,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:07,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:49:07,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893380413] [2023-01-28 00:49:07,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:07,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:49:07,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:49:07,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:49:07,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 164 [2023-01-28 00:49:07,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 00:49:07,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:07,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 164 [2023-01-28 00:49:07,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:07,848 INFO L130 PetriNetUnfolder]: 1299/1851 cut-off events. [2023-01-28 00:49:07,849 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-01-28 00:49:07,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 1851 events. 1299/1851 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7514 event pairs, 339 based on Foata normal form. 9/1860 useless extension candidates. Maximal degree in co-relation 3826. Up to 1795 conditions per place. [2023-01-28 00:49:07,858 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 30 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-01-28 00:49:07,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 153 flow [2023-01-28 00:49:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:49:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:49:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-01-28 00:49:07,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5813008130081301 [2023-01-28 00:49:07,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-01-28 00:49:07,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-01-28 00:49:07,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:07,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-01-28 00:49:07,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 00:49:07,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:07,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:07,876 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 52 flow. Second operand 3 states and 286 transitions. [2023-01-28 00:49:07,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 153 flow [2023-01-28 00:49:07,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 00:49:07,879 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 67 flow [2023-01-28 00:49:07,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-01-28 00:49:07,882 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-01-28 00:49:07,883 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 67 flow [2023-01-28 00:49:07,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 00:49:07,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:07,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:07,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:49:07,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:07,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash 431717755, now seen corresponding path program 1 times [2023-01-28 00:49:07,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:07,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853538785] [2023-01-28 00:49:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:07,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:08,033 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 00:49:08,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:08,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853538785] [2023-01-28 00:49:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853538785] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:08,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:08,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:49:08,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219348023] [2023-01-28 00:49:08,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:08,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:49:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:08,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:49:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:49:08,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 164 [2023-01-28 00:49:08,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 00:49:08,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:08,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 164 [2023-01-28 00:49:08,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:08,128 INFO L130 PetriNetUnfolder]: 623/992 cut-off events. [2023-01-28 00:49:08,129 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-01-28 00:49:08,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 992 events. 623/992 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4562 event pairs, 161 based on Foata normal form. 18/1009 useless extension candidates. Maximal degree in co-relation 2264. Up to 688 conditions per place. [2023-01-28 00:49:08,134 INFO L137 encePairwiseOnDemand]: 161/164 looper letters, 25 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2023-01-28 00:49:08,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 141 flow [2023-01-28 00:49:08,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:49:08,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:49:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-01-28 00:49:08,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6056910569105691 [2023-01-28 00:49:08,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-01-28 00:49:08,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-01-28 00:49:08,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:08,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-01-28 00:49:08,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 00:49:08,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:08,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:08,143 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 67 flow. Second operand 3 states and 298 transitions. [2023-01-28 00:49:08,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 141 flow [2023-01-28 00:49:08,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 00:49:08,145 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 75 flow [2023-01-28 00:49:08,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-01-28 00:49:08,146 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-01-28 00:49:08,146 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 75 flow [2023-01-28 00:49:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 00:49:08,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:08,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:08,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:49:08,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:08,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 431717910, now seen corresponding path program 1 times [2023-01-28 00:49:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210635149] [2023-01-28 00:49:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:08,287 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 00:49:08,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:08,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210635149] [2023-01-28 00:49:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210635149] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:08,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:08,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:49:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92789245] [2023-01-28 00:49:08,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:08,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:49:08,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:49:08,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:49:08,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 164 [2023-01-28 00:49:08,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 00:49:08,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:08,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 164 [2023-01-28 00:49:08,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:08,423 INFO L130 PetriNetUnfolder]: 1137/1635 cut-off events. [2023-01-28 00:49:08,424 INFO L131 PetriNetUnfolder]: For 552/552 co-relation queries the response was YES. [2023-01-28 00:49:08,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3961 conditions, 1635 events. 1137/1635 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6493 event pairs, 405 based on Foata normal form. 27/1662 useless extension candidates. Maximal degree in co-relation 3948. Up to 1378 conditions per place. [2023-01-28 00:49:08,431 INFO L137 encePairwiseOnDemand]: 161/164 looper letters, 32 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-01-28 00:49:08,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 177 flow [2023-01-28 00:49:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:49:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:49:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-01-28 00:49:08,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-01-28 00:49:08,433 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-01-28 00:49:08,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-01-28 00:49:08,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:08,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-01-28 00:49:08,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 00:49:08,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:08,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 00:49:08,435 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 75 flow. Second operand 3 states and 287 transitions. [2023-01-28 00:49:08,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 177 flow [2023-01-28 00:49:08,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 171 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:49:08,438 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 80 flow [2023-01-28 00:49:08,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-01-28 00:49:08,439 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2023-01-28 00:49:08,441 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 80 flow [2023-01-28 00:49:08,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 00:49:08,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:08,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:08,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:49:08,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:08,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash 498347943, now seen corresponding path program 1 times [2023-01-28 00:49:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982231034] [2023-01-28 00:49:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:08,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:08,532 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 00:49:08,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:08,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982231034] [2023-01-28 00:49:08,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982231034] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:08,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:08,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:49:08,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498917842] [2023-01-28 00:49:08,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:08,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:49:08,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:08,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:49:08,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:49:08,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 164 [2023-01-28 00:49:08,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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 00:49:08,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:08,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 164 [2023-01-28 00:49:08,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:08,662 INFO L130 PetriNetUnfolder]: 1356/1971 cut-off events. [2023-01-28 00:49:08,663 INFO L131 PetriNetUnfolder]: For 1076/1076 co-relation queries the response was YES. [2023-01-28 00:49:08,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4818 conditions, 1971 events. 1356/1971 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7924 event pairs, 409 based on Foata normal form. 81/2052 useless extension candidates. Maximal degree in co-relation 4804. Up to 682 conditions per place. [2023-01-28 00:49:08,670 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 30 selfloop transitions, 4 changer transitions 8/42 dead transitions. [2023-01-28 00:49:08,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 223 flow [2023-01-28 00:49:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 00:49:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 00:49:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2023-01-28 00:49:08,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5609756097560976 [2023-01-28 00:49:08,671 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 368 transitions. [2023-01-28 00:49:08,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 368 transitions. [2023-01-28 00:49:08,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:08,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 368 transitions. [2023-01-28 00:49:08,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 00:49:08,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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 00:49:08,673 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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 00:49:08,673 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 80 flow. Second operand 4 states and 368 transitions. [2023-01-28 00:49:08,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 223 flow [2023-01-28 00:49:08,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:49:08,675 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 91 flow [2023-01-28 00:49:08,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-01-28 00:49:08,676 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-01-28 00:49:08,676 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 91 flow [2023-01-28 00:49:08,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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 00:49:08,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:08,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:08,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:49:08,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:08,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash -668304170, now seen corresponding path program 1 times [2023-01-28 00:49:08,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370314450] [2023-01-28 00:49:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:08,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:08,787 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 00:49:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:08,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370314450] [2023-01-28 00:49:08,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370314450] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:08,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:08,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:49:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456250821] [2023-01-28 00:49:08,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:08,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:49:08,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:49:08,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:49:08,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 164 [2023-01-28 00:49:08,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 00:49:08,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:08,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 164 [2023-01-28 00:49:08,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:08,874 INFO L130 PetriNetUnfolder]: 546/857 cut-off events. [2023-01-28 00:49:08,874 INFO L131 PetriNetUnfolder]: For 1019/1019 co-relation queries the response was YES. [2023-01-28 00:49:08,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 857 events. 546/857 cut-off events. For 1019/1019 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3826 event pairs, 140 based on Foata normal form. 36/892 useless extension candidates. Maximal degree in co-relation 2226. Up to 366 conditions per place. [2023-01-28 00:49:08,878 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 35 selfloop transitions, 4 changer transitions 6/46 dead transitions. [2023-01-28 00:49:08,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 267 flow [2023-01-28 00:49:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 00:49:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 00:49:08,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2023-01-28 00:49:08,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5960365853658537 [2023-01-28 00:49:08,879 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2023-01-28 00:49:08,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2023-01-28 00:49:08,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:08,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2023-01-28 00:49:08,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 00:49:08,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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 00:49:08,881 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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 00:49:08,882 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 91 flow. Second operand 4 states and 391 transitions. [2023-01-28 00:49:08,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 267 flow [2023-01-28 00:49:08,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 235 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-01-28 00:49:08,884 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 91 flow [2023-01-28 00:49:08,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-01-28 00:49:08,884 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-01-28 00:49:08,884 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 91 flow [2023-01-28 00:49:08,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 00:49:08,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:08,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:08,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:49:08,885 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:08,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1191307809, now seen corresponding path program 1 times [2023-01-28 00:49:08,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:08,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352009555] [2023-01-28 00:49:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:08,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:08,970 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 00:49:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352009555] [2023-01-28 00:49:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352009555] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:08,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:08,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:49:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459446305] [2023-01-28 00:49:08,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:08,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:49:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:49:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:49:08,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-01-28 00:49:08,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 00:49:08,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:08,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-01-28 00:49:08,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:09,035 INFO L130 PetriNetUnfolder]: 266/447 cut-off events. [2023-01-28 00:49:09,035 INFO L131 PetriNetUnfolder]: For 650/650 co-relation queries the response was YES. [2023-01-28 00:49:09,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 447 events. 266/447 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1778 event pairs, 72 based on Foata normal form. 16/460 useless extension candidates. Maximal degree in co-relation 1294. Up to 290 conditions per place. [2023-01-28 00:49:09,037 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 29 selfloop transitions, 5 changer transitions 21/57 dead transitions. [2023-01-28 00:49:09,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 57 transitions, 344 flow [2023-01-28 00:49:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:49:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:49:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2023-01-28 00:49:09,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5780487804878048 [2023-01-28 00:49:09,039 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2023-01-28 00:49:09,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2023-01-28 00:49:09,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:09,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2023-01-28 00:49:09,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 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 00:49:09,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:09,041 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:09,041 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 91 flow. Second operand 5 states and 474 transitions. [2023-01-28 00:49:09,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 57 transitions, 344 flow [2023-01-28 00:49:09,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 309 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-28 00:49:09,043 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 122 flow [2023-01-28 00:49:09,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2023-01-28 00:49:09,043 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-01-28 00:49:09,044 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 122 flow [2023-01-28 00:49:09,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 00:49:09,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:09,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:09,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:49:09,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:09,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:09,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1613254340, now seen corresponding path program 1 times [2023-01-28 00:49:09,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:09,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065645953] [2023-01-28 00:49:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:09,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:09,142 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 00:49:09,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:09,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065645953] [2023-01-28 00:49:09,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065645953] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:09,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:09,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:49:09,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529639456] [2023-01-28 00:49:09,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:09,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:49:09,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:09,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:49:09,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:49:09,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-01-28 00:49:09,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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 00:49:09,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:09,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-01-28 00:49:09,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:09,234 INFO L130 PetriNetUnfolder]: 194/344 cut-off events. [2023-01-28 00:49:09,235 INFO L131 PetriNetUnfolder]: For 518/537 co-relation queries the response was YES. [2023-01-28 00:49:09,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 344 events. 194/344 cut-off events. For 518/537 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1307 event pairs, 25 based on Foata normal form. 25/366 useless extension candidates. Maximal degree in co-relation 1296. Up to 213 conditions per place. [2023-01-28 00:49:09,236 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 37 selfloop transitions, 9 changer transitions 21/69 dead transitions. [2023-01-28 00:49:09,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 69 transitions, 462 flow [2023-01-28 00:49:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 00:49:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 00:49:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 569 transitions. [2023-01-28 00:49:09,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5782520325203252 [2023-01-28 00:49:09,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 569 transitions. [2023-01-28 00:49:09,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 569 transitions. [2023-01-28 00:49:09,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:09,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 569 transitions. [2023-01-28 00:49:09,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 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 00:49:09,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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 00:49:09,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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 00:49:09,242 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 122 flow. Second operand 6 states and 569 transitions. [2023-01-28 00:49:09,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 69 transitions, 462 flow [2023-01-28 00:49:09,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 69 transitions, 455 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 00:49:09,245 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 187 flow [2023-01-28 00:49:09,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2023-01-28 00:49:09,246 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-01-28 00:49:09,246 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 187 flow [2023-01-28 00:49:09,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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 00:49:09,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:09,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:09,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:49:09,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:09,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:09,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1528736420, now seen corresponding path program 1 times [2023-01-28 00:49:09,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:09,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543211014] [2023-01-28 00:49:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:09,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:09,383 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 00:49:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:09,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543211014] [2023-01-28 00:49:09,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543211014] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:09,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:09,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:49:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042359450] [2023-01-28 00:49:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:09,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 00:49:09,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:09,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 00:49:09,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-28 00:49:09,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-01-28 00:49:09,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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 00:49:09,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:09,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-01-28 00:49:09,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:09,469 INFO L130 PetriNetUnfolder]: 121/232 cut-off events. [2023-01-28 00:49:09,469 INFO L131 PetriNetUnfolder]: For 643/685 co-relation queries the response was YES. [2023-01-28 00:49:09,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 232 events. 121/232 cut-off events. For 643/685 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 788 event pairs, 11 based on Foata normal form. 31/260 useless extension candidates. Maximal degree in co-relation 1055. Up to 135 conditions per place. [2023-01-28 00:49:09,471 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 39 selfloop transitions, 13 changer transitions 17/71 dead transitions. [2023-01-28 00:49:09,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 575 flow [2023-01-28 00:49:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:49:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:49:09,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 658 transitions. [2023-01-28 00:49:09,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573170731707317 [2023-01-28 00:49:09,473 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 658 transitions. [2023-01-28 00:49:09,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 658 transitions. [2023-01-28 00:49:09,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:09,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 658 transitions. [2023-01-28 00:49:09,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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 00:49:09,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 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 00:49:09,476 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 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 00:49:09,476 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 187 flow. Second operand 7 states and 658 transitions. [2023-01-28 00:49:09,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 575 flow [2023-01-28 00:49:09,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 513 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-01-28 00:49:09,479 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 237 flow [2023-01-28 00:49:09,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=237, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2023-01-28 00:49:09,480 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2023-01-28 00:49:09,480 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 237 flow [2023-01-28 00:49:09,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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 00:49:09,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:09,480 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 00:49:09,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:49:09,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:09,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash -287987935, now seen corresponding path program 1 times [2023-01-28 00:49:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:09,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702817319] [2023-01-28 00:49:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:09,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:09,586 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 00:49:09,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:09,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702817319] [2023-01-28 00:49:09,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702817319] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:09,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:09,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:49:09,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946116018] [2023-01-28 00:49:09,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:09,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:49:09,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:09,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:49:09,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:49:09,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 164 [2023-01-28 00:49:09,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 00:49:09,588 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:09,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 164 [2023-01-28 00:49:09,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:09,665 INFO L130 PetriNetUnfolder]: 203/368 cut-off events. [2023-01-28 00:49:09,665 INFO L131 PetriNetUnfolder]: For 1006/1006 co-relation queries the response was YES. [2023-01-28 00:49:09,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 368 events. 203/368 cut-off events. For 1006/1006 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1280 event pairs, 26 based on Foata normal form. 6/374 useless extension candidates. Maximal degree in co-relation 1595. Up to 207 conditions per place. [2023-01-28 00:49:09,667 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 50 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2023-01-28 00:49:09,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 595 flow [2023-01-28 00:49:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:49:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:49:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2023-01-28 00:49:09,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5475609756097561 [2023-01-28 00:49:09,669 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2023-01-28 00:49:09,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2023-01-28 00:49:09,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:09,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2023-01-28 00:49:09,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 00:49:09,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:09,671 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:09,671 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 237 flow. Second operand 5 states and 449 transitions. [2023-01-28 00:49:09,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 595 flow [2023-01-28 00:49:09,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 485 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-01-28 00:49:09,676 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 239 flow [2023-01-28 00:49:09,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=239, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-01-28 00:49:09,677 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2023-01-28 00:49:09,677 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 239 flow [2023-01-28 00:49:09,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 00:49:09,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:09,677 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 00:49:09,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:49:09,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:09,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash -719952799, now seen corresponding path program 2 times [2023-01-28 00:49:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:09,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186119401] [2023-01-28 00:49:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:09,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:09,820 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 00:49:09,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:09,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186119401] [2023-01-28 00:49:09,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186119401] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:09,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:09,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 00:49:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970457766] [2023-01-28 00:49:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:09,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 00:49:09,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:09,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 00:49:09,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-01-28 00:49:09,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-01-28 00:49:09,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 87.42857142857143) internal successors, (612), 7 states have internal predecessors, (612), 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 00:49:09,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:09,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-01-28 00:49:09,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:09,897 INFO L130 PetriNetUnfolder]: 132/258 cut-off events. [2023-01-28 00:49:09,897 INFO L131 PetriNetUnfolder]: For 629/741 co-relation queries the response was YES. [2023-01-28 00:49:09,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 258 events. 132/258 cut-off events. For 629/741 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 983 event pairs, 8 based on Foata normal form. 48/296 useless extension candidates. Maximal degree in co-relation 1045. Up to 87 conditions per place. [2023-01-28 00:49:09,899 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 41 selfloop transitions, 18 changer transitions 9/72 dead transitions. [2023-01-28 00:49:09,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 599 flow [2023-01-28 00:49:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 00:49:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 00:49:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 735 transitions. [2023-01-28 00:49:09,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5602134146341463 [2023-01-28 00:49:09,901 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 735 transitions. [2023-01-28 00:49:09,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 735 transitions. [2023-01-28 00:49:09,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:09,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 735 transitions. [2023-01-28 00:49:09,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 91.875) internal successors, (735), 8 states have internal predecessors, (735), 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 00:49:09,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 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 00:49:09,904 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 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 00:49:09,904 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 239 flow. Second operand 8 states and 735 transitions. [2023-01-28 00:49:09,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 599 flow [2023-01-28 00:49:09,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 583 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-01-28 00:49:09,909 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 291 flow [2023-01-28 00:49:09,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=291, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2023-01-28 00:49:09,910 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2023-01-28 00:49:09,910 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 291 flow [2023-01-28 00:49:09,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.42857142857143) internal successors, (612), 7 states have internal predecessors, (612), 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 00:49:09,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:49:09,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:09,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:49:09,911 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 00:49:09,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:49:09,911 INFO L85 PathProgramCache]: Analyzing trace with hash 708701820, now seen corresponding path program 1 times [2023-01-28 00:49:09,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:49:09,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109095929] [2023-01-28 00:49:09,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:49:09,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:49:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:49:10,007 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 00:49:10,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:49:10,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109095929] [2023-01-28 00:49:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109095929] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:49:10,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:49:10,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:49:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904558367] [2023-01-28 00:49:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:49:10,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:49:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:49:10,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:49:10,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:49:10,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 164 [2023-01-28 00:49:10,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 00:49:10,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:49:10,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 164 [2023-01-28 00:49:10,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:49:10,066 INFO L130 PetriNetUnfolder]: 216/390 cut-off events. [2023-01-28 00:49:10,067 INFO L131 PetriNetUnfolder]: For 1173/1173 co-relation queries the response was YES. [2023-01-28 00:49:10,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1792 conditions, 390 events. 216/390 cut-off events. For 1173/1173 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1455 event pairs, 19 based on Foata normal form. 1/391 useless extension candidates. Maximal degree in co-relation 1776. Up to 256 conditions per place. [2023-01-28 00:49:10,068 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2023-01-28 00:49:10,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 74 transitions, 673 flow [2023-01-28 00:49:10,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:49:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:49:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 452 transitions. [2023-01-28 00:49:10,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.551219512195122 [2023-01-28 00:49:10,069 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 452 transitions. [2023-01-28 00:49:10,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 452 transitions. [2023-01-28 00:49:10,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:49:10,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 452 transitions. [2023-01-28 00:49:10,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 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 00:49:10,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:10,071 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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 00:49:10,071 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 291 flow. Second operand 5 states and 452 transitions. [2023-01-28 00:49:10,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 74 transitions, 673 flow [2023-01-28 00:49:10,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 541 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-01-28 00:49:10,074 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2023-01-28 00:49:10,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2023-01-28 00:49:10,075 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2023-01-28 00:49:10,075 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2023-01-28 00:49:10,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 00:49:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 00:49:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-01-28 00:49:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 00:49:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 00:49:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 00:49:10,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:49:10,077 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:49:10,079 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 00:49:10,079 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 00:49:10,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:49:10 BasicIcfg [2023-01-28 00:49:10,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 00:49:10,081 INFO L158 Benchmark]: Toolchain (without parser) took 5673.23ms. Allocated memory was 377.5MB in the beginning and 841.0MB in the end (delta: 463.5MB). Free memory was 330.6MB in the beginning and 494.3MB in the end (delta: -163.6MB). Peak memory consumption was 302.1MB. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 377.5MB. Free memory is still 320.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.05ms. Allocated memory is still 377.5MB. Free memory was 330.6MB in the beginning and 310.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.56ms. Allocated memory is still 377.5MB. Free memory was 310.1MB in the beginning and 307.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: Boogie Preprocessor took 27.54ms. Allocated memory is still 377.5MB. Free memory was 307.9MB in the beginning and 306.3MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: RCFGBuilder took 342.89ms. Allocated memory is still 377.5MB. Free memory was 306.3MB in the beginning and 291.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 00:49:10,082 INFO L158 Benchmark]: TraceAbstraction took 4850.39ms. Allocated memory was 377.5MB in the beginning and 841.0MB in the end (delta: 463.5MB). Free memory was 290.9MB in the beginning and 494.3MB in the end (delta: -203.4MB). Peak memory consumption was 262.3MB. Max. memory is 16.0GB. [2023-01-28 00:49:10,083 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 377.5MB. Free memory is still 320.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 402.05ms. Allocated memory is still 377.5MB. Free memory was 330.6MB in the beginning and 310.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.56ms. Allocated memory is still 377.5MB. Free memory was 310.1MB in the beginning and 307.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 27.54ms. Allocated memory is still 377.5MB. Free memory was 307.9MB in the beginning and 306.3MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 342.89ms. Allocated memory is still 377.5MB. Free memory was 306.3MB in the beginning and 291.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4850.39ms. Allocated memory was 377.5MB in the beginning and 841.0MB in the end (delta: 463.5MB). Free memory was 290.9MB in the beginning and 494.3MB in the end (delta: -203.4MB). Peak memory consumption was 262.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 94 PlacesBefore, 33 PlacesAfterwards, 82 TransitionsBefore, 20 TransitionsAfterwards, 1542 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1627, independent: 1537, independent conditional: 0, independent unconditional: 1537, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 816, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1627, independent: 754, independent conditional: 0, independent unconditional: 754, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 816, unknown conditional: 0, unknown unconditional: 816] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 129 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: 4.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 677 IncrementalHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 11 mSDtfsCounter, 677 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=10, InterpolantAutomatonStates: 53, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 00:49:10,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...