./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix017.oepc.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/mix017.oepc.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 a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:27:56,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:27:56,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:27:56,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:27:56,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:27:56,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:27:56,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:27:56,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:27:56,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:27:56,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:27:56,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:27:56,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:27:56,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:27:56,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:27:56,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:27:56,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:27:56,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:27:56,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:27:56,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:27:56,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:27:56,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:27:56,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:27:56,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:27:56,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:27:56,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:27:56,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:27:56,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:27:56,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:27:56,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:27:56,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:27:56,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:27:56,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:27:56,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:27:56,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:27:56,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:27:56,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:27:56,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:27:56,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:27:56,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:27:56,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:27:56,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:27:56,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:27:56,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-11-09 02:27:57,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:27:57,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:27:57,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:27:57,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:27:57,097 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:27:57,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-09 02:27:58,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:27:58,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:27:58,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-09 02:27:58,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af4dbdef/ee7fed9e06454d7d8db334ea37fbe6cb/FLAG8465d8823 [2024-11-09 02:27:58,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af4dbdef/ee7fed9e06454d7d8db334ea37fbe6cb [2024-11-09 02:27:58,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:27:58,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:27:58,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:27:58,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:27:58,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:27:58,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:27:58" (1/1) ... [2024-11-09 02:27:58,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7731774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:58, skipping insertion in model container [2024-11-09 02:27:58,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:27:58" (1/1) ... [2024-11-09 02:27:59,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:27:59,236 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/mix017.oepc.i[945,958] [2024-11-09 02:27:59,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:27:59,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:27:59,478 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/mix017.oepc.i[945,958] [2024-11-09 02:27:59,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:27:59,581 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:27:59,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59 WrapperNode [2024-11-09 02:27:59,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:27:59,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:27:59,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:27:59,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:27:59,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,670 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-11-09 02:27:59,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:27:59,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:27:59,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:27:59,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:27:59,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,724 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 02:27:59,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:27:59,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:27:59,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:27:59,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:27:59,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (1/1) ... [2024-11-09 02:27:59,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:27:59,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:27:59,788 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 02:27:59,791 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 02:27:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:27:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:27:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:27:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:27:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:27:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:27:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 02:27:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 02:27:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 02:27:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 02:27:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:27:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:27:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:27:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:27:59,837 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 02:27:59,977 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:27:59,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:28:00,331 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:28:00,331 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:28:00,581 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:28:00,582 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:28:00,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:28:00 BoogieIcfgContainer [2024-11-09 02:28:00,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:28:00,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:28:00,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:28:00,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:28:00,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:27:58" (1/3) ... [2024-11-09 02:28:00,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6e9598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:28:00, skipping insertion in model container [2024-11-09 02:28:00,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:59" (2/3) ... [2024-11-09 02:28:00,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6e9598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:28:00, skipping insertion in model container [2024-11-09 02:28:00,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:28:00" (3/3) ... [2024-11-09 02:28:00,594 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-11-09 02:28:00,612 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:28:00,613 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:28:00,613 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:28:00,680 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:28:00,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-09 02:28:00,754 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-09 02:28:00,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:28:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-09 02:28:00,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-09 02:28:00,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-09 02:28:00,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:28:00,787 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;@4c646bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:28:00,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:28:00,792 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:28:00,793 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 02:28:00,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:28:00,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:00,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 02:28:00,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:00,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 12023700, now seen corresponding path program 1 times [2024-11-09 02:28:00,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:00,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828828296] [2024-11-09 02:28:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:00,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:01,316 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 02:28:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:01,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828828296] [2024-11-09 02:28:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828828296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:01,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 02:28:01,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550547113] [2024-11-09 02:28:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:01,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:28:01,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:28:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:28:01,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-11-09 02:28:01,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 02:28:01,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:01,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-11-09 02:28:01,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:02,406 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-11-09 02:28:02,407 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-09 02:28:02,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 4136 events. 2495/4136 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 28535 event pairs, 443 based on Foata normal form. 135/4200 useless extension candidates. Maximal degree in co-relation 7700. Up to 2779 conditions per place. [2024-11-09 02:28:02,444 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-11-09 02:28:02,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-11-09 02:28:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:28:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:28:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-09 02:28:02,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-11-09 02:28:02,460 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-11-09 02:28:02,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-11-09 02:28:02,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 02:28:02,470 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-09 02:28:02,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-09 02:28:02,479 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-09 02:28:02,479 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-09 02:28:02,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 02:28:02,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:02,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:28:02,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:28:02,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:02,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1673571900, now seen corresponding path program 1 times [2024-11-09 02:28:02,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:02,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037522143] [2024-11-09 02:28:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:02,834 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 02:28:02,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037522143] [2024-11-09 02:28:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037522143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:28:02,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279914915] [2024-11-09 02:28:02,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:02,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:28:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:28:02,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:28:02,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-09 02:28:02,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 02:28:02,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:02,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-09 02:28:02,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:05,771 INFO L124 PetriNetUnfolderBase]: 13249/19196 cut-off events. [2024-11-09 02:28:05,772 INFO L125 PetriNetUnfolderBase]: For 918/918 co-relation queries the response was YES. [2024-11-09 02:28:05,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38182 conditions, 19196 events. 13249/19196 cut-off events. For 918/918 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 128823 event pairs, 7720 based on Foata normal form. 0/18787 useless extension candidates. Maximal degree in co-relation 38172. Up to 11671 conditions per place. [2024-11-09 02:28:05,925 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 37 selfloop transitions, 5 changer transitions 58/113 dead transitions. [2024-11-09 02:28:05,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 456 flow [2024-11-09 02:28:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:28:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:28:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 238 transitions. [2024-11-09 02:28:05,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-09 02:28:05,928 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 238 transitions. [2024-11-09 02:28:05,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 456 flow [2024-11-09 02:28:05,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:28:05,933 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 147 flow [2024-11-09 02:28:05,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=147, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-11-09 02:28:05,934 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-09 02:28:05,934 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 147 flow [2024-11-09 02:28:05,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 02:28:05,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:05,935 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:28:05,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:28:05,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:05,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1502900189, now seen corresponding path program 1 times [2024-11-09 02:28:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:05,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142649000] [2024-11-09 02:28:05,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:05,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:06,211 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 02:28:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142649000] [2024-11-09 02:28:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142649000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:28:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899097597] [2024-11-09 02:28:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:06,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:28:06,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:06,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:28:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:28:06,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-09 02:28:06,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 02:28:06,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:06,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-09 02:28:06,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:08,227 INFO L124 PetriNetUnfolderBase]: 10019/14530 cut-off events. [2024-11-09 02:28:08,228 INFO L125 PetriNetUnfolderBase]: For 14250/14253 co-relation queries the response was YES. [2024-11-09 02:28:08,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39463 conditions, 14530 events. 10019/14530 cut-off events. For 14250/14253 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 92654 event pairs, 1683 based on Foata normal form. 390/14849 useless extension candidates. Maximal degree in co-relation 39448. Up to 9073 conditions per place. [2024-11-09 02:28:08,329 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 42 selfloop transitions, 3 changer transitions 51/109 dead transitions. [2024-11-09 02:28:08,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 109 transitions, 579 flow [2024-11-09 02:28:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:28:08,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:28:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 213 transitions. [2024-11-09 02:28:08,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6209912536443148 [2024-11-09 02:28:08,335 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 147 flow. Second operand 7 states and 213 transitions. [2024-11-09 02:28:08,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 109 transitions, 579 flow [2024-11-09 02:28:08,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 109 transitions, 566 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-09 02:28:08,527 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 157 flow [2024-11-09 02:28:08,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-11-09 02:28:08,529 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-09 02:28:08,529 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 157 flow [2024-11-09 02:28:08,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 02:28:08,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:08,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:28:08,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:28:08,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:08,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1094328144, now seen corresponding path program 1 times [2024-11-09 02:28:08,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:08,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292585810] [2024-11-09 02:28:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:08,686 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 02:28:08,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:08,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292585810] [2024-11-09 02:28:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292585810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:08,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:08,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:28:08,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343079100] [2024-11-09 02:28:08,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:08,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:28:08,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:08,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:28:08,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:28:08,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-09 02:28:08,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 02:28:08,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:08,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-09 02:28:08,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:11,005 INFO L124 PetriNetUnfolderBase]: 13591/20365 cut-off events. [2024-11-09 02:28:11,005 INFO L125 PetriNetUnfolderBase]: For 9627/9807 co-relation queries the response was YES. [2024-11-09 02:28:11,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46526 conditions, 20365 events. 13591/20365 cut-off events. For 9627/9807 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 143684 event pairs, 2484 based on Foata normal form. 681/20267 useless extension candidates. Maximal degree in co-relation 46507. Up to 9547 conditions per place. [2024-11-09 02:28:11,182 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 53 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2024-11-09 02:28:11,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 345 flow [2024-11-09 02:28:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:28:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:28:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-09 02:28:11,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989795918367347 [2024-11-09 02:28:11,184 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 157 flow. Second operand 4 states and 137 transitions. [2024-11-09 02:28:11,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 345 flow [2024-11-09 02:28:11,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 331 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-09 02:28:11,347 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 189 flow [2024-11-09 02:28:11,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-09 02:28:11,349 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-09 02:28:11,349 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 189 flow [2024-11-09 02:28:11,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 02:28:11,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:11,350 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 02:28:11,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:28:11,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:11,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2057947707, now seen corresponding path program 1 times [2024-11-09 02:28:11,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:11,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746400452] [2024-11-09 02:28:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:11,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:11,665 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 02:28:11,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:11,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746400452] [2024-11-09 02:28:11,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746400452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:11,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:11,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:28:11,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015206633] [2024-11-09 02:28:11,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:11,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:28:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:28:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:28:11,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-09 02:28:11,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 02:28:11,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:11,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-09 02:28:11,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:13,313 INFO L124 PetriNetUnfolderBase]: 11180/16762 cut-off events. [2024-11-09 02:28:13,313 INFO L125 PetriNetUnfolderBase]: For 5969/6083 co-relation queries the response was YES. [2024-11-09 02:28:13,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40643 conditions, 16762 events. 11180/16762 cut-off events. For 5969/6083 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 113530 event pairs, 1467 based on Foata normal form. 602/16714 useless extension candidates. Maximal degree in co-relation 40626. Up to 5576 conditions per place. [2024-11-09 02:28:13,420 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 69 selfloop transitions, 10 changer transitions 0/97 dead transitions. [2024-11-09 02:28:13,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 470 flow [2024-11-09 02:28:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:28:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:28:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-09 02:28:13,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7183673469387755 [2024-11-09 02:28:13,422 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 189 flow. Second operand 5 states and 176 transitions. [2024-11-09 02:28:13,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 470 flow [2024-11-09 02:28:13,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:28:13,426 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 254 flow [2024-11-09 02:28:13,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-09 02:28:13,427 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-09 02:28:13,427 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 254 flow [2024-11-09 02:28:13,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 02:28:13,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:13,428 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] [2024-11-09 02:28:13,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:28:13,428 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:13,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -246178957, now seen corresponding path program 1 times [2024-11-09 02:28:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:13,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398744053] [2024-11-09 02:28:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:13,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:14,319 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 02:28:14,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398744053] [2024-11-09 02:28:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398744053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:14,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:14,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:28:14,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161836418] [2024-11-09 02:28:14,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:14,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:28:14,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:28:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:28:14,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-09 02:28:14,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 254 flow. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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 02:28:14,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:14,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-09 02:28:14,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:18,540 INFO L124 PetriNetUnfolderBase]: 20706/32193 cut-off events. [2024-11-09 02:28:18,540 INFO L125 PetriNetUnfolderBase]: For 38688/44172 co-relation queries the response was YES. [2024-11-09 02:28:18,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91692 conditions, 32193 events. 20706/32193 cut-off events. For 38688/44172 co-relation queries the response was YES. Maximal size of possible extension queue 1717. Compared 254937 event pairs, 5597 based on Foata normal form. 609/30793 useless extension candidates. Maximal degree in co-relation 91672. Up to 12177 conditions per place. [2024-11-09 02:28:18,795 INFO L140 encePairwiseOnDemand]: 35/49 looper letters, 127 selfloop transitions, 32 changer transitions 12/194 dead transitions. [2024-11-09 02:28:18,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 194 transitions, 1085 flow [2024-11-09 02:28:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:28:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:28:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 410 transitions. [2024-11-09 02:28:18,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.597667638483965 [2024-11-09 02:28:18,798 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 254 flow. Second operand 14 states and 410 transitions. [2024-11-09 02:28:18,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 194 transitions, 1085 flow [2024-11-09 02:28:18,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 194 transitions, 1070 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 02:28:18,810 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 518 flow [2024-11-09 02:28:18,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=518, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2024-11-09 02:28:18,811 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2024-11-09 02:28:18,811 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 518 flow [2024-11-09 02:28:18,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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 02:28:18,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:18,812 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] [2024-11-09 02:28:18,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:28:18,812 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:18,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash 745626647, now seen corresponding path program 2 times [2024-11-09 02:28:18,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:18,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468855809] [2024-11-09 02:28:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:19,123 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 02:28:19,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468855809] [2024-11-09 02:28:19,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468855809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:19,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:19,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:28:19,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183372258] [2024-11-09 02:28:19,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:19,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:28:19,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:19,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:28:19,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:28:19,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-09 02:28:19,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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 02:28:19,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:19,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-09 02:28:19,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:22,797 INFO L124 PetriNetUnfolderBase]: 22487/33244 cut-off events. [2024-11-09 02:28:22,797 INFO L125 PetriNetUnfolderBase]: For 57973/60138 co-relation queries the response was YES. [2024-11-09 02:28:22,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107483 conditions, 33244 events. 22487/33244 cut-off events. For 57973/60138 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 230250 event pairs, 1780 based on Foata normal form. 1438/33840 useless extension candidates. Maximal degree in co-relation 107453. Up to 11270 conditions per place. [2024-11-09 02:28:23,054 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 118 selfloop transitions, 14 changer transitions 10/170 dead transitions. [2024-11-09 02:28:23,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 170 transitions, 1198 flow [2024-11-09 02:28:23,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:28:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:28:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-11-09 02:28:23,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-09 02:28:23,055 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 518 flow. Second operand 6 states and 213 transitions. [2024-11-09 02:28:23,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 170 transitions, 1198 flow [2024-11-09 02:28:23,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 170 transitions, 1145 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-09 02:28:23,106 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 526 flow [2024-11-09 02:28:23,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2024-11-09 02:28:23,107 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 31 predicate places. [2024-11-09 02:28:23,107 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 526 flow [2024-11-09 02:28:23,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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 02:28:23,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:23,108 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 02:28:23,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:28:23,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:23,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash -713801392, now seen corresponding path program 1 times [2024-11-09 02:28:23,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:23,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301753685] [2024-11-09 02:28:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:24,347 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 02:28:24,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:24,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301753685] [2024-11-09 02:28:24,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301753685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:24,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:24,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:28:24,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62788064] [2024-11-09 02:28:24,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:24,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:28:24,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:28:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:28:24,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-09 02:28:24,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 526 flow. Second operand has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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 02:28:24,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:24,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-09 02:28:24,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:27,929 INFO L124 PetriNetUnfolderBase]: 17013/29197 cut-off events. [2024-11-09 02:28:27,929 INFO L125 PetriNetUnfolderBase]: For 66420/75957 co-relation queries the response was YES. [2024-11-09 02:28:28,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94459 conditions, 29197 events. 17013/29197 cut-off events. For 66420/75957 co-relation queries the response was YES. Maximal size of possible extension queue 1997. Compared 263997 event pairs, 5372 based on Foata normal form. 1193/27479 useless extension candidates. Maximal degree in co-relation 94428. Up to 9325 conditions per place. [2024-11-09 02:28:28,218 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 80 selfloop transitions, 22 changer transitions 26/171 dead transitions. [2024-11-09 02:28:28,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 171 transitions, 1187 flow [2024-11-09 02:28:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:28:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:28:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2024-11-09 02:28:28,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.655328798185941 [2024-11-09 02:28:28,222 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 526 flow. Second operand 9 states and 289 transitions. [2024-11-09 02:28:28,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 171 transitions, 1187 flow [2024-11-09 02:28:28,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 1140 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-09 02:28:28,490 INFO L231 Difference]: Finished difference. Result has 95 places, 98 transitions, 663 flow [2024-11-09 02:28:28,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=663, PETRI_PLACES=95, PETRI_TRANSITIONS=98} [2024-11-09 02:28:28,491 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 38 predicate places. [2024-11-09 02:28:28,491 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 98 transitions, 663 flow [2024-11-09 02:28:28,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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 02:28:28,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:28,491 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 02:28:28,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:28:28,492 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:28,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:28,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1086634778, now seen corresponding path program 2 times [2024-11-09 02:28:28,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:28,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380519847] [2024-11-09 02:28:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:28,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:28,787 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 02:28:28,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380519847] [2024-11-09 02:28:28,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380519847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:28,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:28,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:28:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876089324] [2024-11-09 02:28:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:28,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:28:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:28:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:28:28,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-09 02:28:28,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 98 transitions, 663 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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 02:28:28,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:28,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-09 02:28:28,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:35,209 INFO L124 PetriNetUnfolderBase]: 35671/56474 cut-off events. [2024-11-09 02:28:35,209 INFO L125 PetriNetUnfolderBase]: For 181255/194075 co-relation queries the response was YES. [2024-11-09 02:28:35,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201551 conditions, 56474 events. 35671/56474 cut-off events. For 181255/194075 co-relation queries the response was YES. Maximal size of possible extension queue 3958. Compared 505595 event pairs, 10912 based on Foata normal form. 1530/51913 useless extension candidates. Maximal degree in co-relation 201516. Up to 22005 conditions per place. [2024-11-09 02:28:36,069 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 160 selfloop transitions, 16 changer transitions 34/237 dead transitions. [2024-11-09 02:28:36,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 237 transitions, 2011 flow [2024-11-09 02:28:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:28:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:28:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 246 transitions. [2024-11-09 02:28:36,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6275510204081632 [2024-11-09 02:28:36,071 INFO L175 Difference]: Start difference. First operand has 95 places, 98 transitions, 663 flow. Second operand 8 states and 246 transitions. [2024-11-09 02:28:36,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 237 transitions, 2011 flow [2024-11-09 02:28:37,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 237 transitions, 1944 flow, removed 33 selfloop flow, removed 5 redundant places. [2024-11-09 02:28:37,092 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 739 flow [2024-11-09 02:28:37,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=739, PETRI_PLACES=97, PETRI_TRANSITIONS=105} [2024-11-09 02:28:37,093 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2024-11-09 02:28:37,093 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 739 flow [2024-11-09 02:28:37,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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 02:28:37,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:37,093 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 02:28:37,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:28:37,093 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:37,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash -13104314, now seen corresponding path program 3 times [2024-11-09 02:28:37,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:37,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129013537] [2024-11-09 02:28:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:37,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:37,378 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 02:28:37,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:37,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129013537] [2024-11-09 02:28:37,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129013537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:37,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:37,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:28:37,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810284035] [2024-11-09 02:28:37,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:37,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:28:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:37,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:28:37,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:28:37,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-09 02:28:37,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 105 transitions, 739 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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 02:28:37,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:37,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-09 02:28:37,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:28:46,236 INFO L124 PetriNetUnfolderBase]: 50522/73645 cut-off events. [2024-11-09 02:28:46,237 INFO L125 PetriNetUnfolderBase]: For 199461/207734 co-relation queries the response was YES. [2024-11-09 02:28:46,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267780 conditions, 73645 events. 50522/73645 cut-off events. For 199461/207734 co-relation queries the response was YES. Maximal size of possible extension queue 3579. Compared 564462 event pairs, 3428 based on Foata normal form. 2862/74847 useless extension candidates. Maximal degree in co-relation 267744. Up to 28056 conditions per place. [2024-11-09 02:28:46,888 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 123 selfloop transitions, 18 changer transitions 55/216 dead transitions. [2024-11-09 02:28:46,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 216 transitions, 1773 flow [2024-11-09 02:28:46,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:28:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:28:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-11-09 02:28:46,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647230320699709 [2024-11-09 02:28:46,891 INFO L175 Difference]: Start difference. First operand has 97 places, 105 transitions, 739 flow. Second operand 7 states and 228 transitions. [2024-11-09 02:28:46,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 216 transitions, 1773 flow [2024-11-09 02:28:49,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 216 transitions, 1734 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-09 02:28:49,545 INFO L231 Difference]: Finished difference. Result has 99 places, 80 transitions, 552 flow [2024-11-09 02:28:49,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=552, PETRI_PLACES=99, PETRI_TRANSITIONS=80} [2024-11-09 02:28:49,546 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2024-11-09 02:28:49,546 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 552 flow [2024-11-09 02:28:49,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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 02:28:49,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:28:49,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:28:49,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 02:28:49,547 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:28:49,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:28:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1685479483, now seen corresponding path program 1 times [2024-11-09 02:28:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:28:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883417774] [2024-11-09 02:28:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:28:49,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:28:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:28:49,845 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 02:28:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:28:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883417774] [2024-11-09 02:28:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883417774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:28:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:28:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:28:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603728792] [2024-11-09 02:28:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:28:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:28:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:28:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:28:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:28:49,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-09 02:28:49,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 552 flow. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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 02:28:49,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:28:49,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-09 02:28:49,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand