/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:47:07,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:47:07,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:47:07,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:47:07,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:47:07,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:47:07,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:47:07,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:47:07,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:47:07,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:47:07,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:47:07,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:47:07,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:47:07,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:47:07,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:47:07,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:47:07,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:47:07,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:47:07,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:47:07,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:47:07,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:47:07,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:47:07,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:47:07,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:47:07,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 18:47:07,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:47:07,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:47:07,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:47:07,463 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-NoLbe.epf [2022-12-05 18:47:07,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:47:07,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:47:07,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:47:07,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:47:07,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:47:07,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:47:07,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:47:07,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:47:07,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:47:07,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:47:07,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:47:07,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:47:07,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:47:07,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:47:07,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:47:07,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:47:07,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:47:07,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:47:07,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:07,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:47:07,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:47:07,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:47:07,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:47:07,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:47:07,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:47:07,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:47:07,893 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:47:07,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 18:47:09,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:47:09,317 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:47:09,317 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 18:47:09,351 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b03c913/ea225b5373d6411dadeeb734ff4bfdf9/FLAG165eabf80 [2022-12-05 18:47:09,367 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b03c913/ea225b5373d6411dadeeb734ff4bfdf9 [2022-12-05 18:47:09,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:47:09,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:47:09,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:09,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:47:09,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:47:09,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481ce046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09, skipping insertion in model container [2022-12-05 18:47:09,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:47:09,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:47:09,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-05 18:47:09,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:09,740 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:47:09,751 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-05 18:47:09,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:09,818 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:47:09,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09 WrapperNode [2022-12-05 18:47:09,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:09,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:09,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:47:09,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:47:09,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,858 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-05 18:47:09,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:09,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:47:09,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:47:09,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:47:09,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:47:09,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:47:09,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:47:09,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:47:09,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (1/1) ... [2022-12-05 18:47:09,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:09,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:47:09,923 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) [2022-12-05 18:47:09,932 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 [2022-12-05 18:47:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 18:47:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:47:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:47:09,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:47:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:47:09,977 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:47:10,082 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:47:10,084 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:47:10,259 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:47:10,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:47:10,265 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:47:10,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:10 BoogieIcfgContainer [2022-12-05 18:47:10,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:47:10,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:47:10,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:47:10,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:47:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:47:09" (1/3) ... [2022-12-05 18:47:10,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b34ff3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:10, skipping insertion in model container [2022-12-05 18:47:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:09" (2/3) ... [2022-12-05 18:47:10,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b34ff3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:10, skipping insertion in model container [2022-12-05 18:47:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:10" (3/3) ... [2022-12-05 18:47:10,280 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 18:47:10,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:47:10,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:47:10,295 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:47:10,368 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 18:47:10,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 192 flow [2022-12-05 18:47:10,463 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-05 18:47:10,463 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:10,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 2/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-05 18:47:10,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 192 flow [2022-12-05 18:47:10,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2022-12-05 18:47:10,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:47:10,486 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;@3e7d11ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:47:10,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 18:47:10,513 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-12-05 18:47:10,513 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:10,513 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:10,514 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:10,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1110970496, now seen corresponding path program 1 times [2022-12-05 18:47:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93825480] [2022-12-05 18:47:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:10,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:11,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:11,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93825480] [2022-12-05 18:47:11,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93825480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:11,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:11,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:47:11,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681127398] [2022-12-05 18:47:11,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:11,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:47:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:47:11,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:47:11,084 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2022-12-05 18:47:11,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:11,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:11,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2022-12-05 18:47:11,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:11,270 INFO L130 PetriNetUnfolder]: 21/203 cut-off events. [2022-12-05 18:47:11,270 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:11,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 203 events. 21/203 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 736 event pairs, 0 based on Foata normal form. 5/205 useless extension candidates. Maximal degree in co-relation 229. Up to 17 conditions per place. [2022-12-05 18:47:11,273 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 17 selfloop transitions, 13 changer transitions 9/102 dead transitions. [2022-12-05 18:47:11,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 102 transitions, 285 flow [2022-12-05 18:47:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:47:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:47:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 702 transitions. [2022-12-05 18:47:11,294 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2022-12-05 18:47:11,295 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 159 flow. Second operand 9 states and 702 transitions. [2022-12-05 18:47:11,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 102 transitions, 285 flow [2022-12-05 18:47:11,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 102 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:11,301 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 246 flow [2022-12-05 18:47:11,303 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=246, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2022-12-05 18:47:11,308 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, 13 predicate places. [2022-12-05 18:47:11,308 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 246 flow [2022-12-05 18:47:11,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:11,309 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:11,309 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:11,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:47:11,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:11,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1551578372, now seen corresponding path program 1 times [2022-12-05 18:47:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:11,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179266756] [2022-12-05 18:47:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:11,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:11,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:11,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179266756] [2022-12-05 18:47:11,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179266756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:11,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:11,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657848209] [2022-12-05 18:47:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:11,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:11,601 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 92 [2022-12-05 18:47:11,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:11,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:11,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 92 [2022-12-05 18:47:11,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:11,780 INFO L130 PetriNetUnfolder]: 67/370 cut-off events. [2022-12-05 18:47:11,780 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-05 18:47:11,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 370 events. 67/370 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1790 event pairs, 41 based on Foata normal form. 3/370 useless extension candidates. Maximal degree in co-relation 628. Up to 150 conditions per place. [2022-12-05 18:47:11,783 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 28 selfloop transitions, 8 changer transitions 3/95 dead transitions. [2022-12-05 18:47:11,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 95 transitions, 336 flow [2022-12-05 18:47:11,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2022-12-05 18:47:11,785 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7195652173913043 [2022-12-05 18:47:11,786 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 246 flow. Second operand 5 states and 331 transitions. [2022-12-05 18:47:11,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 95 transitions, 336 flow [2022-12-05 18:47:11,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 95 transitions, 324 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:11,790 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 258 flow [2022-12-05 18:47:11,790 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2022-12-05 18:47:11,790 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, 16 predicate places. [2022-12-05 18:47:11,791 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 258 flow [2022-12-05 18:47:11,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:11,791 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:11,791 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:11,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:47:11,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2139762710, now seen corresponding path program 1 times [2022-12-05 18:47:11,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:11,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860596737] [2022-12-05 18:47:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:12,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:12,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860596737] [2022-12-05 18:47:12,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860596737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:12,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:12,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:12,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155986637] [2022-12-05 18:47:12,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:12,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:12,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:12,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:12,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:12,083 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 92 [2022-12-05 18:47:12,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 258 flow. Second operand has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:12,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 92 [2022-12-05 18:47:12,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:12,253 INFO L130 PetriNetUnfolder]: 33/248 cut-off events. [2022-12-05 18:47:12,253 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-12-05 18:47:12,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 248 events. 33/248 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 920 event pairs, 11 based on Foata normal form. 15/263 useless extension candidates. Maximal degree in co-relation 436. Up to 61 conditions per place. [2022-12-05 18:47:12,258 INFO L137 encePairwiseOnDemand]: 82/92 looper letters, 24 selfloop transitions, 10 changer transitions 11/89 dead transitions. [2022-12-05 18:47:12,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 89 transitions, 342 flow [2022-12-05 18:47:12,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 354 transitions. [2022-12-05 18:47:12,259 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2022-12-05 18:47:12,259 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 258 flow. Second operand 6 states and 354 transitions. [2022-12-05 18:47:12,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 89 transitions, 342 flow [2022-12-05 18:47:12,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 89 transitions, 335 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 18:47:12,265 INFO L231 Difference]: Finished difference. Result has 100 places, 75 transitions, 233 flow [2022-12-05 18:47:12,265 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=100, PETRI_TRANSITIONS=75} [2022-12-05 18:47:12,266 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, 19 predicate places. [2022-12-05 18:47:12,266 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 75 transitions, 233 flow [2022-12-05 18:47:12,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,267 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:12,267 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:12,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:47:12,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:12,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2144835490, now seen corresponding path program 2 times [2022-12-05 18:47:12,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:12,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221300982] [2022-12-05 18:47:12,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:12,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:12,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:12,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221300982] [2022-12-05 18:47:12,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221300982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:12,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:12,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:12,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344007288] [2022-12-05 18:47:12,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:12,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:12,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:12,428 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 92 [2022-12-05 18:47:12,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 75 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:12,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 92 [2022-12-05 18:47:12,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:12,519 INFO L130 PetriNetUnfolder]: 14/130 cut-off events. [2022-12-05 18:47:12,520 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-12-05 18:47:12,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 130 events. 14/130 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 270 event pairs, 6 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 261. Up to 30 conditions per place. [2022-12-05 18:47:12,521 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 22 selfloop transitions, 5 changer transitions 4/74 dead transitions. [2022-12-05 18:47:12,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 74 transitions, 284 flow [2022-12-05 18:47:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 319 transitions. [2022-12-05 18:47:12,522 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6934782608695652 [2022-12-05 18:47:12,522 INFO L175 Difference]: Start difference. First operand has 100 places, 75 transitions, 233 flow. Second operand 5 states and 319 transitions. [2022-12-05 18:47:12,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 74 transitions, 284 flow [2022-12-05 18:47:12,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 74 transitions, 248 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-12-05 18:47:12,526 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 184 flow [2022-12-05 18:47:12,526 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2022-12-05 18:47:12,527 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2022-12-05 18:47:12,528 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 184 flow [2022-12-05 18:47:12,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,528 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:12,528 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:12,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:47:12,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:12,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash -316910250, now seen corresponding path program 1 times [2022-12-05 18:47:12,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:12,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763134234] [2022-12-05 18:47:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:12,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:12,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:12,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763134234] [2022-12-05 18:47:12,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763134234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:12,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:12,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441203003] [2022-12-05 18:47:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:12,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:12,706 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 92 [2022-12-05 18:47:12,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:12,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 92 [2022-12-05 18:47:12,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:12,763 INFO L130 PetriNetUnfolder]: 12/133 cut-off events. [2022-12-05 18:47:12,764 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-12-05 18:47:12,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 133 events. 12/133 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 316 event pairs, 1 based on Foata normal form. 8/141 useless extension candidates. Maximal degree in co-relation 214. Up to 37 conditions per place. [2022-12-05 18:47:12,764 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 26 selfloop transitions, 5 changer transitions 3/77 dead transitions. [2022-12-05 18:47:12,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 301 flow [2022-12-05 18:47:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 322 transitions. [2022-12-05 18:47:12,766 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7 [2022-12-05 18:47:12,766 INFO L175 Difference]: Start difference. First operand has 81 places, 68 transitions, 184 flow. Second operand 5 states and 322 transitions. [2022-12-05 18:47:12,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 301 flow [2022-12-05 18:47:12,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 277 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 18:47:12,767 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 178 flow [2022-12-05 18:47:12,768 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2022-12-05 18:47:12,768 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2022-12-05 18:47:12,768 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 178 flow [2022-12-05 18:47:12,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,769 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:12,769 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:12,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:47:12,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 18:47:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1695266824, now seen corresponding path program 2 times [2022-12-05 18:47:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84748190] [2022-12-05 18:47:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:12,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:12,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84748190] [2022-12-05 18:47:12,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84748190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:12,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:12,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:47:12,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417762876] [2022-12-05 18:47:12,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:12,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:47:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:12,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:47:12,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:47:12,921 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 92 [2022-12-05 18:47:12,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:12,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 92 [2022-12-05 18:47:12,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:12,970 INFO L130 PetriNetUnfolder]: 4/77 cut-off events. [2022-12-05 18:47:12,971 INFO L131 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2022-12-05 18:47:12,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 77 events. 4/77 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 7/84 useless extension candidates. Maximal degree in co-relation 84. Up to 18 conditions per place. [2022-12-05 18:47:12,971 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2022-12-05 18:47:12,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 61 transitions, 226 flow [2022-12-05 18:47:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 342 transitions. [2022-12-05 18:47:12,972 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6195652173913043 [2022-12-05 18:47:12,972 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 178 flow. Second operand 6 states and 342 transitions. [2022-12-05 18:47:12,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 61 transitions, 226 flow [2022-12-05 18:47:12,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 61 transitions, 220 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:47:12,974 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2022-12-05 18:47:12,974 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2022-12-05 18:47:12,974 INFO L294 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2022-12-05 18:47:12,974 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2022-12-05 18:47:12,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 7 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 18:47:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-05 18:47:12,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 18:47:12,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:47:12,978 INFO L458 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-12-05 18:47:12,980 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:12,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:12,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:12 BasicIcfg [2022-12-05 18:47:12,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:12,984 INFO L158 Benchmark]: Toolchain (without parser) took 3613.65ms. Allocated memory was 244.3MB in the beginning and 293.6MB in the end (delta: 49.3MB). Free memory was 219.1MB in the beginning and 128.1MB in the end (delta: 90.9MB). Peak memory consumption was 141.6MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,984 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 244.3MB. Free memory is still 220.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:12,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.59ms. Allocated memory is still 244.3MB. Free memory was 218.8MB in the beginning and 199.4MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.49ms. Allocated memory is still 244.3MB. Free memory was 199.4MB in the beginning and 197.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,985 INFO L158 Benchmark]: Boogie Preprocessor took 29.15ms. Allocated memory is still 244.3MB. Free memory was 197.3MB in the beginning and 196.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,985 INFO L158 Benchmark]: RCFGBuilder took 378.32ms. Allocated memory is still 244.3MB. Free memory was 195.8MB in the beginning and 180.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,985 INFO L158 Benchmark]: TraceAbstraction took 2707.53ms. Allocated memory was 244.3MB in the beginning and 293.6MB in the end (delta: 49.3MB). Free memory was 180.0MB in the beginning and 128.1MB in the end (delta: 51.9MB). Peak memory consumption was 102.8MB. Max. memory is 8.0GB. [2022-12-05 18:47:12,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 244.3MB. Free memory is still 220.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 445.59ms. Allocated memory is still 244.3MB. Free memory was 218.8MB in the beginning and 199.4MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.49ms. Allocated memory is still 244.3MB. Free memory was 199.4MB in the beginning and 197.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.15ms. Allocated memory is still 244.3MB. Free memory was 197.3MB in the beginning and 196.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 378.32ms. Allocated memory is still 244.3MB. Free memory was 195.8MB in the beginning and 180.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2707.53ms. Allocated memory was 244.3MB in the beginning and 293.6MB in the end (delta: 49.3MB). Free memory was 180.0MB in the beginning and 128.1MB in the end (delta: 51.9MB). Peak memory consumption was 102.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 110 locations, 3 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: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 34 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=2, InterpolantAutomatonStates: 36, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:47:13,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...