./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:38:06,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:38:06,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:38:06,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:38:06,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:38:06,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:38:06,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:38:06,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:38:06,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:38:06,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:38:06,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:38:06,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:38:06,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:38:06,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:38:06,655 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:38:06,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:38:06,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:38:06,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:38:06,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:38:06,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:38:06,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:38:06,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:38:06,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:38:06,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:38:06,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:38:06,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:38:06,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:38:06,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:38:06,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:38:06,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:38:06,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:38:06,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:38:06,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:38:06,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:38:06,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:38:06,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:38:06,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:38:06,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:38:06,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:38:06,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:38:06,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:38:06,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:38:06,667 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 [2024-11-20 09:38:06,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:38:06,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:38:06,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:38:06,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:38:06,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:38:06,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-20 09:38:08,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:38:08,628 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:38:08,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-20 09:38:08,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f886702c/c03f9499cda347cb8402506eade6b689/FLAG4707a8792 [2024-11-20 09:38:08,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f886702c/c03f9499cda347cb8402506eade6b689 [2024-11-20 09:38:08,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:38:08,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:38:08,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:38:08,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:38:08,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:38:08,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:08,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d070b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08, skipping insertion in model container [2024-11-20 09:38:08,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:08,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:38:08,907 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2491,2504] [2024-11-20 09:38:08,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:38:08,926 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:38:08,950 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2491,2504] [2024-11-20 09:38:08,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:38:08,971 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:38:08,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08 WrapperNode [2024-11-20 09:38:08,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:38:08,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:38:08,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:38:08,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:38:08,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:08,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,015 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2024-11-20 09:38:09,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:38:09,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:38:09,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:38:09,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:38:09,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,055 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 09:38:09,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:38:09,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:38:09,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:38:09,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:38:09,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (1/1) ... [2024-11-20 09:38:09,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:38:09,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:38:09,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:38:09,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:38:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:38:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 09:38:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 09:38:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 09:38:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 09:38:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:38:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:38:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:38:09,172 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:38:09,291 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:38:09,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:38:09,656 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:38:09,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:38:09,826 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:38:09,826 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:38:09,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:09 BoogieIcfgContainer [2024-11-20 09:38:09,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:38:09,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:38:09,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:38:09,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:38:09,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:38:08" (1/3) ... [2024-11-20 09:38:09,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16488e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:09, skipping insertion in model container [2024-11-20 09:38:09,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:08" (2/3) ... [2024-11-20 09:38:09,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16488e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:09, skipping insertion in model container [2024-11-20 09:38:09,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:09" (3/3) ... [2024-11-20 09:38:09,840 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-11-20 09:38:09,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:38:09,857 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:38:09,857 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:38:09,911 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 09:38:09,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 108 flow [2024-11-20 09:38:09,998 INFO L124 PetriNetUnfolderBase]: 3/45 cut-off events. [2024-11-20 09:38:09,998 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 09:38:10,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 45 events. 3/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-11-20 09:38:10,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 47 transitions, 108 flow [2024-11-20 09:38:10,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-20 09:38:10,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:38:10,027 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@38211bd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:38:10,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-20 09:38:10,049 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:38:10,049 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-20 09:38:10,049 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 09:38:10,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:10,050 INFO L204 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] [2024-11-20 09:38:10,051 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:10,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:10,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2077819709, now seen corresponding path program 1 times [2024-11-20 09:38:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082569137] [2024-11-20 09:38:10,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:10,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:10,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:10,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082569137] [2024-11-20 09:38:10,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082569137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:10,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:10,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:38:10,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695474377] [2024-11-20 09:38:10,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:10,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:38:10,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:10,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:38:10,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:38:10,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 09:38:10,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-20 09:38:10,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:10,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 09:38:10,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:10,701 INFO L124 PetriNetUnfolderBase]: 138/299 cut-off events. [2024-11-20 09:38:10,703 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-20 09:38:10,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 299 events. 138/299 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1220 event pairs, 45 based on Foata normal form. 5/273 useless extension candidates. Maximal degree in co-relation 497. Up to 155 conditions per place. [2024-11-20 09:38:10,710 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 32 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-11-20 09:38:10,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 204 flow [2024-11-20 09:38:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:38:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:38:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-20 09:38:10,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163120567375887 [2024-11-20 09:38:10,726 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 3 states and 101 transitions. [2024-11-20 09:38:10,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 204 flow [2024-11-20 09:38:10,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 09:38:10,733 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 117 flow [2024-11-20 09:38:10,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2024-11-20 09:38:10,743 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-11-20 09:38:10,743 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 117 flow [2024-11-20 09:38:10,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-20 09:38:10,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:10,744 INFO L204 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] [2024-11-20 09:38:10,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:38:10,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:10,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1453387417, now seen corresponding path program 1 times [2024-11-20 09:38:10,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:10,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313256047] [2024-11-20 09:38:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313256047] [2024-11-20 09:38:10,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313256047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:10,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:10,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:38:10,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094170324] [2024-11-20 09:38:10,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:10,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:38:10,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:38:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:38:10,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 09:38:10,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-20 09:38:10,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:10,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 09:38:10,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:11,063 INFO L124 PetriNetUnfolderBase]: 225/495 cut-off events. [2024-11-20 09:38:11,064 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-20 09:38:11,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 495 events. 225/495 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2354 event pairs, 98 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 469. Up to 257 conditions per place. [2024-11-20 09:38:11,069 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 35 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2024-11-20 09:38:11,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 240 flow [2024-11-20 09:38:11,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:38:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:38:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-20 09:38:11,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-20 09:38:11,072 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 117 flow. Second operand 3 states and 102 transitions. [2024-11-20 09:38:11,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 240 flow [2024-11-20 09:38:11,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 62 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:38:11,075 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 172 flow [2024-11-20 09:38:11,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2024-11-20 09:38:11,076 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2024-11-20 09:38:11,077 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 172 flow [2024-11-20 09:38:11,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-20 09:38:11,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:11,077 INFO L204 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] [2024-11-20 09:38:11,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:38:11,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:11,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash 841271509, now seen corresponding path program 2 times [2024-11-20 09:38:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:11,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054063918] [2024-11-20 09:38:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:11,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:11,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054063918] [2024-11-20 09:38:11,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054063918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:11,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:11,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:38:11,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761355913] [2024-11-20 09:38:11,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:11,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:38:11,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:11,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:38:11,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:38:11,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 09:38:11,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-20 09:38:11,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:11,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 09:38:11,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:11,511 INFO L124 PetriNetUnfolderBase]: 228/551 cut-off events. [2024-11-20 09:38:11,515 INFO L125 PetriNetUnfolderBase]: For 294/297 co-relation queries the response was YES. [2024-11-20 09:38:11,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 551 events. 228/551 cut-off events. For 294/297 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2777 event pairs, 49 based on Foata normal form. 28/569 useless extension candidates. Maximal degree in co-relation 857. Up to 181 conditions per place. [2024-11-20 09:38:11,523 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 45 selfloop transitions, 15 changer transitions 8/87 dead transitions. [2024-11-20 09:38:11,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 87 transitions, 420 flow [2024-11-20 09:38:11,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:38:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:38:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-20 09:38:11,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2024-11-20 09:38:11,526 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 172 flow. Second operand 5 states and 160 transitions. [2024-11-20 09:38:11,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 87 transitions, 420 flow [2024-11-20 09:38:11,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:38:11,536 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 268 flow [2024-11-20 09:38:11,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-20 09:38:11,538 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2024-11-20 09:38:11,538 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 268 flow [2024-11-20 09:38:11,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-20 09:38:11,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:11,539 INFO L204 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] [2024-11-20 09:38:11,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:38:11,540 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:11,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash -920752387, now seen corresponding path program 3 times [2024-11-20 09:38:11,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:11,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536751983] [2024-11-20 09:38:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:11,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:11,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:11,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536751983] [2024-11-20 09:38:11,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536751983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:11,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:11,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:38:11,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824248354] [2024-11-20 09:38:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:11,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:38:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:38:11,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:38:11,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 09:38:11,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-20 09:38:11,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:11,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 09:38:11,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:11,990 INFO L124 PetriNetUnfolderBase]: 204/571 cut-off events. [2024-11-20 09:38:11,991 INFO L125 PetriNetUnfolderBase]: For 586/607 co-relation queries the response was YES. [2024-11-20 09:38:11,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 571 events. 204/571 cut-off events. For 586/607 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3300 event pairs, 138 based on Foata normal form. 5/549 useless extension candidates. Maximal degree in co-relation 966. Up to 285 conditions per place. [2024-11-20 09:38:11,997 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 33 selfloop transitions, 0 changer transitions 21/79 dead transitions. [2024-11-20 09:38:11,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 470 flow [2024-11-20 09:38:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:38:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:38:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-20 09:38:11,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.675531914893617 [2024-11-20 09:38:11,999 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 268 flow. Second operand 4 states and 127 transitions. [2024-11-20 09:38:11,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 470 flow [2024-11-20 09:38:12,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 456 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-20 09:38:12,005 INFO L231 Difference]: Finished difference. Result has 61 places, 58 transitions, 262 flow [2024-11-20 09:38:12,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=56, 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=4, PETRI_FLOW=262, PETRI_PLACES=61, PETRI_TRANSITIONS=58} [2024-11-20 09:38:12,007 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2024-11-20 09:38:12,008 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 58 transitions, 262 flow [2024-11-20 09:38:12,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-20 09:38:12,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:12,008 INFO L204 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] [2024-11-20 09:38:12,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:38:12,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:12,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1442935031, now seen corresponding path program 1 times [2024-11-20 09:38:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:12,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406134381] [2024-11-20 09:38:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:12,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:12,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406134381] [2024-11-20 09:38:12,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406134381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:12,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:12,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:38:12,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293752074] [2024-11-20 09:38:12,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:12,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:38:12,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:12,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:38:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:38:12,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 09:38:12,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-20 09:38:12,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:12,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 09:38:12,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:12,175 INFO L124 PetriNetUnfolderBase]: 196/509 cut-off events. [2024-11-20 09:38:12,175 INFO L125 PetriNetUnfolderBase]: For 633/636 co-relation queries the response was YES. [2024-11-20 09:38:12,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 509 events. 196/509 cut-off events. For 633/636 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2606 event pairs, 63 based on Foata normal form. 9/512 useless extension candidates. Maximal degree in co-relation 1386. Up to 245 conditions per place. [2024-11-20 09:38:12,180 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 45 selfloop transitions, 8 changer transitions 3/74 dead transitions. [2024-11-20 09:38:12,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 445 flow [2024-11-20 09:38:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:38:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:38:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-20 09:38:12,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-20 09:38:12,182 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 262 flow. Second operand 3 states and 102 transitions. [2024-11-20 09:38:12,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 445 flow [2024-11-20 09:38:12,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 415 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-20 09:38:12,186 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 300 flow [2024-11-20 09:38:12,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-11-20 09:38:12,187 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2024-11-20 09:38:12,187 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 300 flow [2024-11-20 09:38:12,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-20 09:38:12,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:12,188 INFO L204 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] [2024-11-20 09:38:12,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:38:12,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:12,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:12,189 INFO L85 PathProgramCache]: Analyzing trace with hash 838552683, now seen corresponding path program 2 times [2024-11-20 09:38:12,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:12,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070662203] [2024-11-20 09:38:12,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:12,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:12,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:12,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070662203] [2024-11-20 09:38:12,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070662203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:12,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:12,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:38:12,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973568337] [2024-11-20 09:38:12,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:12,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:38:12,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:12,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:38:12,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:38:12,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 09:38:12,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-20 09:38:12,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:12,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 09:38:12,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:12,535 INFO L124 PetriNetUnfolderBase]: 136/378 cut-off events. [2024-11-20 09:38:12,536 INFO L125 PetriNetUnfolderBase]: For 768/774 co-relation queries the response was YES. [2024-11-20 09:38:12,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 378 events. 136/378 cut-off events. For 768/774 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1848 event pairs, 14 based on Foata normal form. 15/382 useless extension candidates. Maximal degree in co-relation 1078. Up to 170 conditions per place. [2024-11-20 09:38:12,539 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 36 selfloop transitions, 19 changer transitions 10/81 dead transitions. [2024-11-20 09:38:12,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 81 transitions, 521 flow [2024-11-20 09:38:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:38:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 09:38:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-20 09:38:12,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6063829787234043 [2024-11-20 09:38:12,542 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 300 flow. Second operand 6 states and 171 transitions. [2024-11-20 09:38:12,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 81 transitions, 521 flow [2024-11-20 09:38:12,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 499 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 09:38:12,550 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 365 flow [2024-11-20 09:38:12,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-20 09:38:12,551 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-20 09:38:12,551 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 365 flow [2024-11-20 09:38:12,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-20 09:38:12,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:12,553 INFO L204 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] [2024-11-20 09:38:12,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:38:12,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:12,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:12,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1828750653, now seen corresponding path program 1 times [2024-11-20 09:38:12,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:12,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875190886] [2024-11-20 09:38:12,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:12,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:12,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:12,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875190886] [2024-11-20 09:38:12,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875190886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:12,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:38:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846089050] [2024-11-20 09:38:12,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:12,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:38:12,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:12,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:38:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:38:12,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 09:38:12,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-20 09:38:12,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:12,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 09:38:12,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:12,771 INFO L124 PetriNetUnfolderBase]: 71/238 cut-off events. [2024-11-20 09:38:12,771 INFO L125 PetriNetUnfolderBase]: For 739/753 co-relation queries the response was YES. [2024-11-20 09:38:12,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 238 events. 71/238 cut-off events. For 739/753 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 968 event pairs, 23 based on Foata normal form. 7/237 useless extension candidates. Maximal degree in co-relation 738. Up to 122 conditions per place. [2024-11-20 09:38:12,773 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 34 selfloop transitions, 8 changer transitions 2/62 dead transitions. [2024-11-20 09:38:12,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 431 flow [2024-11-20 09:38:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:38:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:38:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-20 09:38:12,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2024-11-20 09:38:12,775 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 365 flow. Second operand 4 states and 122 transitions. [2024-11-20 09:38:12,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 431 flow [2024-11-20 09:38:12,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 391 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-20 09:38:12,779 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 303 flow [2024-11-20 09:38:12,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=303, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-20 09:38:12,780 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-20 09:38:12,780 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 303 flow [2024-11-20 09:38:12,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-20 09:38:12,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:38:12,780 INFO L204 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] [2024-11-20 09:38:12,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:38:12,781 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:38:12,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:38:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash -755118249, now seen corresponding path program 2 times [2024-11-20 09:38:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:38:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826868316] [2024-11-20 09:38:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:38:12,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:38:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:38:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:38:13,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:38:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826868316] [2024-11-20 09:38:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826868316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:38:13,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:38:13,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:38:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609287756] [2024-11-20 09:38:13,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:38:13,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:38:13,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:38:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:38:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:38:13,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 09:38:13,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-20 09:38:13,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:38:13,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 09:38:13,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:38:13,234 INFO L124 PetriNetUnfolderBase]: 98/285 cut-off events. [2024-11-20 09:38:13,235 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-11-20 09:38:13,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 285 events. 98/285 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1158 event pairs, 10 based on Foata normal form. 1/283 useless extension candidates. Maximal degree in co-relation 839. Up to 99 conditions per place. [2024-11-20 09:38:13,237 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2024-11-20 09:38:13,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 513 flow [2024-11-20 09:38:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:38:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 09:38:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-11-20 09:38:13,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.541033434650456 [2024-11-20 09:38:13,239 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 303 flow. Second operand 7 states and 178 transitions. [2024-11-20 09:38:13,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 513 flow [2024-11-20 09:38:13,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 475 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-20 09:38:13,242 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-20 09:38:13,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-20 09:38:13,243 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-20 09:38:13,244 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-20 09:38:13,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-20 09:38:13,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-20 09:38:13,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-20 09:38:13,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-20 09:38:13,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:38:13,248 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1] [2024-11-20 09:38:13,251 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 09:38:13,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 09:38:13,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:38:13 BasicIcfg [2024-11-20 09:38:13,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 09:38:13,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 09:38:13,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 09:38:13,263 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 09:38:13,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:09" (3/4) ... [2024-11-20 09:38:13,267 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 09:38:13,271 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 09:38:13,272 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 09:38:13,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2024-11-20 09:38:13,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-20 09:38:13,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-20 09:38:13,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 09:38:13,392 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 09:38:13,393 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 09:38:13,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 09:38:13,394 INFO L158 Benchmark]: Toolchain (without parser) took 4737.71ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 100.5MB in the beginning and 139.1MB in the end (delta: -38.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,394 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 124.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:38:13,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.97ms. Allocated memory is still 169.9MB. Free memory was 100.5MB in the beginning and 87.3MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.51ms. Allocated memory is still 169.9MB. Free memory was 87.3MB in the beginning and 85.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:38:13,395 INFO L158 Benchmark]: Boogie Preprocessor took 59.37ms. Allocated memory is still 169.9MB. Free memory was 85.5MB in the beginning and 83.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,395 INFO L158 Benchmark]: RCFGBuilder took 751.41ms. Allocated memory is still 169.9MB. Free memory was 83.4MB in the beginning and 122.2MB in the end (delta: -38.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,396 INFO L158 Benchmark]: TraceAbstraction took 3430.99ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 121.8MB in the beginning and 144.4MB in the end (delta: -22.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,396 INFO L158 Benchmark]: Witness Printer took 131.85ms. Allocated memory is still 218.1MB. Free memory was 144.4MB in the beginning and 139.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 09:38:13,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 124.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.97ms. Allocated memory is still 169.9MB. Free memory was 100.5MB in the beginning and 87.3MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.51ms. Allocated memory is still 169.9MB. Free memory was 87.3MB in the beginning and 85.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.37ms. Allocated memory is still 169.9MB. Free memory was 85.5MB in the beginning and 83.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 751.41ms. Allocated memory is still 169.9MB. Free memory was 83.4MB in the beginning and 122.2MB in the end (delta: -38.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3430.99ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 121.8MB in the beginning and 144.4MB in the end (delta: -22.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 131.85ms. Allocated memory is still 218.1MB. Free memory was 144.4MB in the beginning and 139.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 69 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: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 622 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 13 mSDtfsCounter, 622 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=365occurred in iteration=6, InterpolantAutomatonStates: 35, 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, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-11-20 09:38:13,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE