./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/safe035_power.i -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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:33:29,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:33:29,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:33:29,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:33:29,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:33:29,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:33:29,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:33:29,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:33:29,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:33:29,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:33:29,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:33:29,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:33:29,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:33:29,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:33:29,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:33:29,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:33:29,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:33:29,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:33:29,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:33:29,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:33:29,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:33:29,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:33:29,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:33:29,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:33:29,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:33:29,651 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:33:29,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:33:29,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:33:29,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:33:29,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:33:29,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:33:29,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:33:29,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:33:29,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:33:29,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:33:29,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:33:29,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:33:29,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:33:29,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:33:29,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:33:29,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:33:29,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:33:29,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-11-09 02:33:29,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:33:29,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:33:29,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:33:29,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:33:29,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:33:29,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-09 02:33:31,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:33:31,770 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:33:31,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-09 02:33:31,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752eaffab/36a6caaed90e43d088bd7c378ef5b72f/FLAGf2b8f9a49 [2024-11-09 02:33:32,062 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/752eaffab/36a6caaed90e43d088bd7c378ef5b72f [2024-11-09 02:33:32,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:33:32,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:33:32,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:33:32,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:33:32,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:33:32,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688ab5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32, skipping insertion in model container [2024-11-09 02:33:32,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:33:32,356 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/pthread-wmm/safe035_power.i[947,960] [2024-11-09 02:33:32,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:33:32,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:33:32,628 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/pthread-wmm/safe035_power.i[947,960] [2024-11-09 02:33:32,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:33:32,785 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:33:32,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32 WrapperNode [2024-11-09 02:33:32,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:33:32,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:33:32,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:33:32,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:33:32,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,867 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-11-09 02:33:32,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:33:32,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:33:32,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:33:32,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:33:32,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,913 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]. [2024-11-09 02:33:32,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:33:32,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:33:32,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:33:32,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:33:32,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (1/1) ... [2024-11-09 02:33:32,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:33:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:33:32,984 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) [2024-11-09 02:33:32,987 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 [2024-11-09 02:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:33:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 02:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 02:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:33:33,041 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:33:33,174 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:33:33,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:33:33,613 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:33:33,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:33:33,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:33:33,927 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:33:33,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:33 BoogieIcfgContainer [2024-11-09 02:33:33,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:33:33,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:33:33,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:33:33,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:33:33,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:33:32" (1/3) ... [2024-11-09 02:33:33,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb15215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:33:33, skipping insertion in model container [2024-11-09 02:33:33,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:32" (2/3) ... [2024-11-09 02:33:33,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb15215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:33:33, skipping insertion in model container [2024-11-09 02:33:33,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:33" (3/3) ... [2024-11-09 02:33:33,937 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-11-09 02:33:33,956 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:33:33,956 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:33:33,956 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:33:34,023 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:33:34,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2024-11-09 02:33:34,098 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2024-11-09 02:33:34,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:33:34,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-09 02:33:34,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2024-11-09 02:33:34,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2024-11-09 02:33:34,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:33:34,124 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;@7ec78543, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:33:34,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 02:33:34,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:33:34,136 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-09 02:33:34,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:33:34,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:34,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:34,138 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:34,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1597382317, now seen corresponding path program 1 times [2024-11-09 02:33:34,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:34,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677185815] [2024-11-09 02:33:34,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:34,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:34,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677185815] [2024-11-09 02:33:34,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677185815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:34,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 02:33:34,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456273509] [2024-11-09 02:33:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:34,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:33:34,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:33:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:33:34,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-09 02:33:34,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-09 02:33:34,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:34,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-09 02:33:34,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:35,668 INFO L124 PetriNetUnfolderBase]: 1951/3088 cut-off events. [2024-11-09 02:33:35,669 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-09 02:33:35,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5983 conditions, 3088 events. 1951/3088 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 18876 event pairs, 266 based on Foata normal form. 120/3172 useless extension candidates. Maximal degree in co-relation 5972. Up to 2386 conditions per place. [2024-11-09 02:33:35,697 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 33 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-11-09 02:33:35,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 183 flow [2024-11-09 02:33:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:33:35,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:33:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-09 02:33:35,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2024-11-09 02:33:35,711 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 88 transitions. [2024-11-09 02:33:35,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 183 flow [2024-11-09 02:33:35,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:33:35,716 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-09 02:33:35,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-09 02:33:35,724 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-09 02:33:35,724 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-09 02:33:35,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-09 02:33:35,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:35,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:35,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:33:35,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:35,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:35,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1890798407, now seen corresponding path program 1 times [2024-11-09 02:33:35,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:35,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081892066] [2024-11-09 02:33:35,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:36,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:36,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081892066] [2024-11-09 02:33:36,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081892066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:36,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:36,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:33:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921586540] [2024-11-09 02:33:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:36,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:33:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:33:36,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:33:36,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-09 02:33:36,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 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) [2024-11-09 02:33:36,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:36,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-09 02:33:36,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:37,114 INFO L124 PetriNetUnfolderBase]: 2423/3832 cut-off events. [2024-11-09 02:33:37,115 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-09 02:33:37,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7578 conditions, 3832 events. 2423/3832 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 24159 event pairs, 661 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7568. Up to 1372 conditions per place. [2024-11-09 02:33:37,134 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 32 selfloop transitions, 2 changer transitions 53/98 dead transitions. [2024-11-09 02:33:37,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 98 transitions, 384 flow [2024-11-09 02:33:37,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:33:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:33:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-11-09 02:33:37,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-11-09 02:33:37,137 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 8 states and 201 transitions. [2024-11-09 02:33:37,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 98 transitions, 384 flow [2024-11-09 02:33:37,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 98 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:33:37,144 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 92 flow [2024-11-09 02:33:37,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2024-11-09 02:33:37,145 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-09 02:33:37,145 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 92 flow [2024-11-09 02:33:37,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 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) [2024-11-09 02:33:37,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:37,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:37,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:33:37,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:37,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash 286561760, now seen corresponding path program 1 times [2024-11-09 02:33:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495808342] [2024-11-09 02:33:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:37,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:38,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:38,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495808342] [2024-11-09 02:33:38,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495808342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:38,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:38,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:33:38,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556265298] [2024-11-09 02:33:38,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:38,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:33:38,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:38,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:33:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:33:38,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-09 02:33:38,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 92 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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) [2024-11-09 02:33:38,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:38,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-09 02:33:38,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:40,462 INFO L124 PetriNetUnfolderBase]: 3661/5794 cut-off events. [2024-11-09 02:33:40,463 INFO L125 PetriNetUnfolderBase]: For 730/730 co-relation queries the response was YES. [2024-11-09 02:33:40,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12528 conditions, 5794 events. 3661/5794 cut-off events. For 730/730 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 37061 event pairs, 543 based on Foata normal form. 135/5911 useless extension candidates. Maximal degree in co-relation 12513. Up to 2389 conditions per place. [2024-11-09 02:33:40,493 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 53 selfloop transitions, 15 changer transitions 47/125 dead transitions. [2024-11-09 02:33:40,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 125 transitions, 518 flow [2024-11-09 02:33:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:33:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:33:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-11-09 02:33:40,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5880952380952381 [2024-11-09 02:33:40,496 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 92 flow. Second operand 10 states and 247 transitions. [2024-11-09 02:33:40,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 125 transitions, 518 flow [2024-11-09 02:33:40,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 125 transitions, 494 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-09 02:33:40,596 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 201 flow [2024-11-09 02:33:40,596 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-09 02:33:40,596 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-09 02:33:40,597 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 201 flow [2024-11-09 02:33:40,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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) [2024-11-09 02:33:40,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:40,597 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] [2024-11-09 02:33:40,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:33:40,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:40,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:40,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1248427591, now seen corresponding path program 1 times [2024-11-09 02:33:40,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:40,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552927432] [2024-11-09 02:33:40,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:40,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552927432] [2024-11-09 02:33:41,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552927432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:41,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:41,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:33:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470053315] [2024-11-09 02:33:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:41,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:33:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:33:41,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:33:41,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-09 02:33:41,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2024-11-09 02:33:41,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:41,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-09 02:33:41,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:43,511 INFO L124 PetriNetUnfolderBase]: 4136/6596 cut-off events. [2024-11-09 02:33:43,512 INFO L125 PetriNetUnfolderBase]: For 6750/6770 co-relation queries the response was YES. [2024-11-09 02:33:43,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19896 conditions, 6596 events. 4136/6596 cut-off events. For 6750/6770 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 43690 event pairs, 442 based on Foata normal form. 65/6643 useless extension candidates. Maximal degree in co-relation 19878. Up to 2790 conditions per place. [2024-11-09 02:33:43,568 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 73 selfloop transitions, 20 changer transitions 38/141 dead transitions. [2024-11-09 02:33:43,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 141 transitions, 881 flow [2024-11-09 02:33:43,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:33:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:33:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-11-09 02:33:43,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456349206349206 [2024-11-09 02:33:43,571 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 201 flow. Second operand 12 states and 275 transitions. [2024-11-09 02:33:43,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 141 transitions, 881 flow [2024-11-09 02:33:43,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 141 transitions, 858 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-09 02:33:43,599 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 383 flow [2024-11-09 02:33:43,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-09 02:33:43,602 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-09 02:33:43,603 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 383 flow [2024-11-09 02:33:43,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2024-11-09 02:33:43,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:43,604 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] [2024-11-09 02:33:43,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:33:43,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:43,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1719423301, now seen corresponding path program 2 times [2024-11-09 02:33:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767975972] [2024-11-09 02:33:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:43,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767975972] [2024-11-09 02:33:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767975972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:43,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:43,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:33:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98174951] [2024-11-09 02:33:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:43,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:33:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:33:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:33:43,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-09 02:33:43,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-09 02:33:43,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:43,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-09 02:33:43,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:45,148 INFO L124 PetriNetUnfolderBase]: 5898/9037 cut-off events. [2024-11-09 02:33:45,148 INFO L125 PetriNetUnfolderBase]: For 35249/35379 co-relation queries the response was YES. [2024-11-09 02:33:45,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35217 conditions, 9037 events. 5898/9037 cut-off events. For 35249/35379 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 55967 event pairs, 832 based on Foata normal form. 565/9555 useless extension candidates. Maximal degree in co-relation 35193. Up to 4184 conditions per place. [2024-11-09 02:33:45,203 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 5 changer transitions 6/123 dead transitions. [2024-11-09 02:33:45,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 123 transitions, 1017 flow [2024-11-09 02:33:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:33:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:33:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-09 02:33:45,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-09 02:33:45,205 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 383 flow. Second operand 4 states and 110 transitions. [2024-11-09 02:33:45,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 123 transitions, 1017 flow [2024-11-09 02:33:45,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 123 transitions, 981 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-09 02:33:45,238 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 401 flow [2024-11-09 02:33:45,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=401, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-09 02:33:45,239 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-09 02:33:45,239 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 401 flow [2024-11-09 02:33:45,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-09 02:33:45,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:45,240 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] [2024-11-09 02:33:45,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:33:45,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:45,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1533968904, now seen corresponding path program 1 times [2024-11-09 02:33:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:45,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427153447] [2024-11-09 02:33:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:45,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:45,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427153447] [2024-11-09 02:33:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427153447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:45,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:45,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:33:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090354751] [2024-11-09 02:33:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:45,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:33:45,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:45,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:33:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:33:45,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-09 02:33:45,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-09 02:33:45,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:45,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-09 02:33:45,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:46,501 INFO L124 PetriNetUnfolderBase]: 4475/6982 cut-off events. [2024-11-09 02:33:46,501 INFO L125 PetriNetUnfolderBase]: For 26026/26142 co-relation queries the response was YES. [2024-11-09 02:33:46,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28149 conditions, 6982 events. 4475/6982 cut-off events. For 26026/26142 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 42094 event pairs, 736 based on Foata normal form. 404/7339 useless extension candidates. Maximal degree in co-relation 28125. Up to 2574 conditions per place. [2024-11-09 02:33:46,544 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 8 changer transitions 12/132 dead transitions. [2024-11-09 02:33:46,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 132 transitions, 1092 flow [2024-11-09 02:33:46,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:33:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:33:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-09 02:33:46,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2024-11-09 02:33:46,546 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 401 flow. Second operand 5 states and 141 transitions. [2024-11-09 02:33:46,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 132 transitions, 1092 flow [2024-11-09 02:33:46,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 132 transitions, 1089 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:33:46,575 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 439 flow [2024-11-09 02:33:46,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=439, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-09 02:33:46,577 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-09 02:33:46,578 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 439 flow [2024-11-09 02:33:46,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-09 02:33:46,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:46,579 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] [2024-11-09 02:33:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:33:46,579 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:46,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1491675154, now seen corresponding path program 1 times [2024-11-09 02:33:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800111000] [2024-11-09 02:33:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:48,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:48,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800111000] [2024-11-09 02:33:48,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800111000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:48,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:48,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:33:48,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902902402] [2024-11-09 02:33:48,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:48,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:33:48,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:48,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:33:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:33:48,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-09 02:33:48,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 439 flow. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 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) [2024-11-09 02:33:48,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:48,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-09 02:33:48,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:49,404 INFO L124 PetriNetUnfolderBase]: 3424/6083 cut-off events. [2024-11-09 02:33:49,405 INFO L125 PetriNetUnfolderBase]: For 20206/21314 co-relation queries the response was YES. [2024-11-09 02:33:49,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24252 conditions, 6083 events. 3424/6083 cut-off events. For 20206/21314 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 43917 event pairs, 583 based on Foata normal form. 185/5890 useless extension candidates. Maximal degree in co-relation 24225. Up to 1940 conditions per place. [2024-11-09 02:33:49,433 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 52 selfloop transitions, 13 changer transitions 70/153 dead transitions. [2024-11-09 02:33:49,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 153 transitions, 1353 flow [2024-11-09 02:33:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 02:33:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 02:33:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 285 transitions. [2024-11-09 02:33:49,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521978021978022 [2024-11-09 02:33:49,435 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 439 flow. Second operand 13 states and 285 transitions. [2024-11-09 02:33:49,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 153 transitions, 1353 flow [2024-11-09 02:33:49,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 153 transitions, 1329 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-09 02:33:49,462 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 475 flow [2024-11-09 02:33:49,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=475, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2024-11-09 02:33:49,463 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 40 predicate places. [2024-11-09 02:33:49,463 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 475 flow [2024-11-09 02:33:49,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 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) [2024-11-09 02:33:49,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:49,464 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] [2024-11-09 02:33:49,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:33:49,465 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:49,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash 70659006, now seen corresponding path program 2 times [2024-11-09 02:33:49,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:49,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376212003] [2024-11-09 02:33:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:49,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:49,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376212003] [2024-11-09 02:33:49,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376212003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:33:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43119571] [2024-11-09 02:33:49,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:49,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:33:49,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:49,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:33:49,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:33:49,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-09 02:33:49,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-09 02:33:49,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:49,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-09 02:33:49,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:50,152 INFO L124 PetriNetUnfolderBase]: 1487/2411 cut-off events. [2024-11-09 02:33:50,152 INFO L125 PetriNetUnfolderBase]: For 16111/16205 co-relation queries the response was YES. [2024-11-09 02:33:50,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11330 conditions, 2411 events. 1487/2411 cut-off events. For 16111/16205 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12529 event pairs, 252 based on Foata normal form. 107/2501 useless extension candidates. Maximal degree in co-relation 11295. Up to 967 conditions per place. [2024-11-09 02:33:50,168 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 77 selfloop transitions, 11 changer transitions 0/99 dead transitions. [2024-11-09 02:33:50,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 99 transitions, 941 flow [2024-11-09 02:33:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:33:50,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:33:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-11-09 02:33:50,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515873015873016 [2024-11-09 02:33:50,170 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 475 flow. Second operand 6 states and 139 transitions. [2024-11-09 02:33:50,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 99 transitions, 941 flow [2024-11-09 02:33:50,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 99 transitions, 756 flow, removed 55 selfloop flow, removed 18 redundant places. [2024-11-09 02:33:50,194 INFO L231 Difference]: Finished difference. Result has 70 places, 62 transitions, 387 flow [2024-11-09 02:33:50,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2024-11-09 02:33:50,195 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-09 02:33:50,195 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 387 flow [2024-11-09 02:33:50,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-09 02:33:50,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:50,196 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] [2024-11-09 02:33:50,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:33:50,196 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:50,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:50,197 INFO L85 PathProgramCache]: Analyzing trace with hash 619321625, now seen corresponding path program 1 times [2024-11-09 02:33:50,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:50,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891058662] [2024-11-09 02:33:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:50,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:50,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:50,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891058662] [2024-11-09 02:33:50,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891058662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:50,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:50,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:33:50,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221483371] [2024-11-09 02:33:50,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:50,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:33:50,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:33:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:33:50,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-09 02:33:50,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-11-09 02:33:50,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:50,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-09 02:33:50,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:51,065 INFO L124 PetriNetUnfolderBase]: 1254/2284 cut-off events. [2024-11-09 02:33:51,065 INFO L125 PetriNetUnfolderBase]: For 7507/8077 co-relation queries the response was YES. [2024-11-09 02:33:51,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8435 conditions, 2284 events. 1254/2284 cut-off events. For 7507/8077 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14344 event pairs, 173 based on Foata normal form. 90/2157 useless extension candidates. Maximal degree in co-relation 8411. Up to 1187 conditions per place. [2024-11-09 02:33:51,075 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 33 selfloop transitions, 1 changer transitions 43/96 dead transitions. [2024-11-09 02:33:51,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 710 flow [2024-11-09 02:33:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:33:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:33:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-09 02:33:51,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-11-09 02:33:51,077 INFO L175 Difference]: Start difference. First operand has 70 places, 62 transitions, 387 flow. Second operand 6 states and 130 transitions. [2024-11-09 02:33:51,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 710 flow [2024-11-09 02:33:51,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 96 transitions, 650 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-09 02:33:51,092 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 265 flow [2024-11-09 02:33:51,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2024-11-09 02:33:51,093 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-09 02:33:51,094 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 265 flow [2024-11-09 02:33:51,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2024-11-09 02:33:51,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:51,095 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] [2024-11-09 02:33:51,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:33:51,095 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:51,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1922864293, now seen corresponding path program 2 times [2024-11-09 02:33:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:51,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741444777] [2024-11-09 02:33:51,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:51,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741444777] [2024-11-09 02:33:53,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741444777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:53,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:33:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422162330] [2024-11-09 02:33:53,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:53,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:33:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:53,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:33:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:33:53,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-09 02:33:53,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 265 flow. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 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) [2024-11-09 02:33:53,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:53,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-09 02:33:53,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:54,284 INFO L124 PetriNetUnfolderBase]: 1011/1925 cut-off events. [2024-11-09 02:33:54,285 INFO L125 PetriNetUnfolderBase]: For 3315/3570 co-relation queries the response was YES. [2024-11-09 02:33:54,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6348 conditions, 1925 events. 1011/1925 cut-off events. For 3315/3570 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 12365 event pairs, 289 based on Foata normal form. 52/1780 useless extension candidates. Maximal degree in co-relation 6323. Up to 937 conditions per place. [2024-11-09 02:33:54,294 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 30 selfloop transitions, 5 changer transitions 29/83 dead transitions. [2024-11-09 02:33:54,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 83 transitions, 570 flow [2024-11-09 02:33:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:33:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:33:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-09 02:33:54,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-09 02:33:54,296 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 265 flow. Second operand 8 states and 161 transitions. [2024-11-09 02:33:54,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 83 transitions, 570 flow [2024-11-09 02:33:54,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 83 transitions, 543 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-09 02:33:54,307 INFO L231 Difference]: Finished difference. Result has 74 places, 50 transitions, 301 flow [2024-11-09 02:33:54,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=301, PETRI_PLACES=74, PETRI_TRANSITIONS=50} [2024-11-09 02:33:54,310 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-09 02:33:54,310 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 50 transitions, 301 flow [2024-11-09 02:33:54,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 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) [2024-11-09 02:33:54,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:54,311 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] [2024-11-09 02:33:54,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 02:33:54,314 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:33:54,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:54,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1686839965, now seen corresponding path program 3 times [2024-11-09 02:33:54,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:54,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601649785] [2024-11-09 02:33:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:54,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:33:57,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:57,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601649785] [2024-11-09 02:33:57,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601649785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:57,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:57,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:33:57,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24324901] [2024-11-09 02:33:57,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:57,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:33:57,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:57,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:33:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:33:57,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-09 02:33:57,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 50 transitions, 301 flow. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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) [2024-11-09 02:33:57,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:57,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-09 02:33:57,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:57,861 INFO L124 PetriNetUnfolderBase]: 457/981 cut-off events. [2024-11-09 02:33:57,861 INFO L125 PetriNetUnfolderBase]: For 2309/2436 co-relation queries the response was YES. [2024-11-09 02:33:57,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 981 events. 457/981 cut-off events. For 2309/2436 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5820 event pairs, 142 based on Foata normal form. 27/934 useless extension candidates. Maximal degree in co-relation 3425. Up to 366 conditions per place. [2024-11-09 02:33:57,865 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-09 02:33:57,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 468 flow [2024-11-09 02:33:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:33:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:33:57,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-11-09 02:33:57,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4312169312169312 [2024-11-09 02:33:57,866 INFO L175 Difference]: Start difference. First operand has 74 places, 50 transitions, 301 flow. Second operand 9 states and 163 transitions. [2024-11-09 02:33:57,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 468 flow [2024-11-09 02:33:57,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 455 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 02:33:57,873 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-11-09 02:33:57,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-11-09 02:33:57,874 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-11-09 02:33:57,874 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-11-09 02:33:57,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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) [2024-11-09 02:33:57,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-09 02:33:57,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-09 02:33:57,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-09 02:33:57,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-09 02:33:57,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-09 02:33:57,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-09 02:33:57,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 02:33:57,883 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2024-11-09 02:33:57,889 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:33:57,889 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:33:57,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:33:57 BasicIcfg [2024-11-09 02:33:57,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:33:57,896 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:33:57,896 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:33:57,896 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:33:57,897 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:33" (3/4) ... [2024-11-09 02:33:57,898 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:33:57,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 02:33:57,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 02:33:57,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 02:33:57,908 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2024-11-09 02:33:57,910 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 02:33:57,910 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 02:33:57,910 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 02:33:58,005 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:33:58,005 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:33:58,006 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:33:58,006 INFO L158 Benchmark]: Toolchain (without parser) took 25940.20ms. Allocated memory was 148.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 77.9MB in the beginning and 600.8MB in the end (delta: -522.9MB). Peak memory consumption was 952.1MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,006 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:33:58,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.19ms. Allocated memory is still 148.9MB. Free memory was 77.7MB in the beginning and 109.1MB in the end (delta: -31.4MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.61ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 105.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,007 INFO L158 Benchmark]: Boogie Preprocessor took 79.86ms. Allocated memory is still 148.9MB. Free memory was 105.6MB in the beginning and 99.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,007 INFO L158 Benchmark]: RCFGBuilder took 976.44ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 79.5MB in the end (delta: 20.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,008 INFO L158 Benchmark]: TraceAbstraction took 23964.79ms. Allocated memory was 148.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 78.6MB in the beginning and 606.1MB in the end (delta: -527.5MB). Peak memory consumption was 946.6MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,008 INFO L158 Benchmark]: Witness Printer took 109.93ms. Allocated memory is still 1.6GB. Free memory was 606.1MB in the beginning and 600.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:33:58,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.19ms. Allocated memory is still 148.9MB. Free memory was 77.7MB in the beginning and 109.1MB in the end (delta: -31.4MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.61ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 105.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.86ms. Allocated memory is still 148.9MB. Free memory was 105.6MB in the beginning and 99.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 976.44ms. Allocated memory is still 148.9MB. Free memory was 99.5MB in the beginning and 79.5MB in the end (delta: 20.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23964.79ms. Allocated memory was 148.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 78.6MB in the beginning and 606.1MB in the end (delta: -527.5MB). Peak memory consumption was 946.6MB. Max. memory is 16.1GB. * Witness Printer took 109.93ms. Allocated memory is still 1.6GB. Free memory was 606.1MB in the beginning and 600.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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 7 procedures, 70 locations, 6 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: 23.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 693 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 676 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2424 IncrementalHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 35 mSDtfsCounter, 2424 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=475occurred in iteration=7, InterpolantAutomatonStates: 84, 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, 0.8s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 02:33:58,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE