./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.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 a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:33:12,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:33:12,452 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:33:12,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:33:12,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:33:12,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:33:12,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:33:12,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:33:12,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:33:12,488 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:33:12,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:33:12,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:33:12,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:33:12,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:33:12,493 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:33:12,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:33:12,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:33:12,493 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:33:12,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:33:12,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:33:12,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:33:12,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:33:12,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:33:12,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:33:12,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:33:12,496 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:33:12,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:33:12,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:33:12,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:33:12,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:33:12,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:33:12,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:33:12,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:33:12,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:33:12,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:33:12,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:33:12,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:33:12,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:33:12,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:33:12,500 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:33:12,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:33:12,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:33:12,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e [2024-11-22 13:33:12,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:33:12,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:33:12,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:33:12,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:33:12,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:33:12,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-22 13:33:13,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:33:14,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:33:14,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-22 13:33:14,205 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04077159/8f2b2decd4bc4daf87f5e2a6ad2ff1ab/FLAG70d2c25df [2024-11-22 13:33:14,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04077159/8f2b2decd4bc4daf87f5e2a6ad2ff1ab [2024-11-22 13:33:14,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:33:14,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:33:14,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:33:14,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:33:14,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:33:14,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611643ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14, skipping insertion in model container [2024-11-22 13:33:14,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:33:14,438 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-22 13:33:14,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:33:14,601 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:33:14,613 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-22 13:33:14,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:33:14,702 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:33:14,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14 WrapperNode [2024-11-22 13:33:14,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:33:14,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:33:14,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:33:14,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:33:14,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,781 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2024-11-22 13:33:14,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:33:14,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:33:14,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:33:14,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:33:14,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,857 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]. [2024-11-22 13:33:14,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:33:14,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:33:14,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:33:14,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:33:14,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (1/1) ... [2024-11-22 13:33:14,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:33:14,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:33:14,917 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) [2024-11-22 13:33:14,921 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 [2024-11-22 13:33:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 13:33:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:33:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-22 13:33:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-22 13:33:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-22 13:33:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-22 13:33:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-22 13:33:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-22 13:33:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-22 13:33:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-22 13:33:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:33:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 13:33:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:33:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:33:14,967 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 13:33:15,085 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:33:15,087 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:33:15,399 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 13:33:15,400 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:33:15,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:33:15,532 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 13:33:15,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:15 BoogieIcfgContainer [2024-11-22 13:33:15,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:33:15,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:33:15,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:33:15,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:33:15,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:33:14" (1/3) ... [2024-11-22 13:33:15,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a5fade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:15, skipping insertion in model container [2024-11-22 13:33:15,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:14" (2/3) ... [2024-11-22 13:33:15,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a5fade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:15, skipping insertion in model container [2024-11-22 13:33:15,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:15" (3/3) ... [2024-11-22 13:33:15,540 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2024-11-22 13:33:15,557 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:33:15,557 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 13:33:15,557 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 13:33:15,601 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 13:33:15,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-22 13:33:15,662 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-22 13:33:15,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:33:15,666 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 4. Compared 83 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. [2024-11-22 13:33:15,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-22 13:33:15,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-22 13:33:15,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:33:15,685 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;@141ae498, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:33:15,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 13:33:15,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:33:15,688 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-22 13:33:15,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:33:15,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:15,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 13:33:15,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:33:15,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash 11779414, now seen corresponding path program 1 times [2024-11-22 13:33:15,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:15,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095193476] [2024-11-22 13:33:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:15,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:16,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:16,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095193476] [2024-11-22 13:33:16,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095193476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:16,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 13:33:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684054005] [2024-11-22 13:33:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:16,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:33:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:16,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:33:16,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:33:16,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-11-22 13:33:16,114 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) [2024-11-22 13:33:16,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:16,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-11-22 13:33:16,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:16,773 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-11-22 13:33:16,773 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-22 13:33:16,786 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 28674 event pairs, 443 based on Foata normal form. 135/4196 useless extension candidates. Maximal degree in co-relation 7700. Up to 2779 conditions per place. [2024-11-22 13:33:16,802 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-11-22 13:33:16,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-11-22 13:33:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:33:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:33:16,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-22 13:33:16,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-11-22 13:33:16,813 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-11-22 13:33:16,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-11-22 13:33:16,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 13:33:16,819 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-22 13:33:16,822 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} [2024-11-22 13:33:16,826 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-22 13:33:16,826 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-22 13:33:16,827 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) [2024-11-22 13:33:16,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:16,827 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:33:16,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 13:33:16,828 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)] === [2024-11-22 13:33:16,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1702071975, now seen corresponding path program 1 times [2024-11-22 13:33:16,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:16,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740961751] [2024-11-22 13:33:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:16,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740961751] [2024-11-22 13:33:17,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740961751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:17,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:17,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:33:17,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158799451] [2024-11-22 13:33:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:17,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:33:17,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:33:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:33:17,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-22 13:33:17,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-22 13:33:17,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:17,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-22 13:33:17,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:23,249 INFO L124 PetriNetUnfolderBase]: 46586/65409 cut-off events. [2024-11-22 13:33:23,249 INFO L125 PetriNetUnfolderBase]: For 2941/2941 co-relation queries the response was YES. [2024-11-22 13:33:23,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130825 conditions, 65409 events. 46586/65409 cut-off events. For 2941/2941 co-relation queries the response was YES. Maximal size of possible extension queue 2616. Compared 460682 event pairs, 11312 based on Foata normal form. 0/63905 useless extension candidates. Maximal degree in co-relation 130815. Up to 20650 conditions per place. [2024-11-22 13:33:23,590 INFO L140 encePairwiseOnDemand]: 36/49 looper letters, 48 selfloop transitions, 9 changer transitions 109/176 dead transitions. [2024-11-22 13:33:23,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 176 transitions, 714 flow [2024-11-22 13:33:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:33:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 13:33:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2024-11-22 13:33:23,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-22 13:33:23,593 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 9 states and 294 transitions. [2024-11-22 13:33:23,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 176 transitions, 714 flow [2024-11-22 13:33:23,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 176 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:33:23,599 INFO L231 Difference]: Finished difference. Result has 67 places, 49 transitions, 216 flow [2024-11-22 13:33:23,601 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=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=216, PETRI_PLACES=67, PETRI_TRANSITIONS=49} [2024-11-22 13:33:23,601 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-22 13:33:23,601 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 216 flow [2024-11-22 13:33:23,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-22 13:33:23,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:23,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:33:23,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 13:33:23,603 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)] === [2024-11-22 13:33:23,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:23,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1518495034, now seen corresponding path program 1 times [2024-11-22 13:33:23,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:23,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919408126] [2024-11-22 13:33:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:23,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919408126] [2024-11-22 13:33:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919408126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:23,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:33:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74289685] [2024-11-22 13:33:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:23,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:33:23,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:33:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:33:23,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-22 13:33:23,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 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) [2024-11-22 13:33:23,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:23,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-22 13:33:23,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:28,369 INFO L124 PetriNetUnfolderBase]: 33366/48220 cut-off events. [2024-11-22 13:33:28,369 INFO L125 PetriNetUnfolderBase]: For 78045/78051 co-relation queries the response was YES. [2024-11-22 13:33:28,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147225 conditions, 48220 events. 33366/48220 cut-off events. For 78045/78051 co-relation queries the response was YES. Maximal size of possible extension queue 1924. Compared 344263 event pairs, 5170 based on Foata normal form. 1369/49461 useless extension candidates. Maximal degree in co-relation 147207. Up to 14889 conditions per place. [2024-11-22 13:33:28,690 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 64 selfloop transitions, 9 changer transitions 106/189 dead transitions. [2024-11-22 13:33:28,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 1248 flow [2024-11-22 13:33:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:33:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 13:33:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 301 transitions. [2024-11-22 13:33:28,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-22 13:33:28,694 INFO L175 Difference]: Start difference. First operand has 67 places, 49 transitions, 216 flow. Second operand 10 states and 301 transitions. [2024-11-22 13:33:28,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 1248 flow [2024-11-22 13:33:28,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 189 transitions, 1090 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-22 13:33:28,896 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 282 flow [2024-11-22 13:33:28,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=282, PETRI_PLACES=74, PETRI_TRANSITIONS=54} [2024-11-22 13:33:28,897 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2024-11-22 13:33:28,897 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 282 flow [2024-11-22 13:33:28,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 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) [2024-11-22 13:33:28,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:28,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:33:28,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:33:28,898 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)] === [2024-11-22 13:33:28,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1905550839, now seen corresponding path program 1 times [2024-11-22 13:33:28,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:28,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484209172] [2024-11-22 13:33:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484209172] [2024-11-22 13:33:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484209172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:29,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:29,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:33:29,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786797442] [2024-11-22 13:33:29,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:29,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:33:29,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:33:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:33:29,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-22 13:33:29,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-11-22 13:33:29,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:29,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-22 13:33:29,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:33,583 INFO L124 PetriNetUnfolderBase]: 29649/42652 cut-off events. [2024-11-22 13:33:33,583 INFO L125 PetriNetUnfolderBase]: For 103401/103406 co-relation queries the response was YES. [2024-11-22 13:33:33,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138507 conditions, 42652 events. 29649/42652 cut-off events. For 103401/103406 co-relation queries the response was YES. Maximal size of possible extension queue 1636. Compared 296141 event pairs, 5358 based on Foata normal form. 896/43525 useless extension candidates. Maximal degree in co-relation 138482. Up to 16533 conditions per place. [2024-11-22 13:33:33,916 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 72 selfloop transitions, 20 changer transitions 90/192 dead transitions. [2024-11-22 13:33:33,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 192 transitions, 1330 flow [2024-11-22 13:33:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:33:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 13:33:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2024-11-22 13:33:33,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6224489795918368 [2024-11-22 13:33:33,918 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 282 flow. Second operand 10 states and 305 transitions. [2024-11-22 13:33:33,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 192 transitions, 1330 flow [2024-11-22 13:33:34,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 192 transitions, 1283 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-22 13:33:34,440 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 492 flow [2024-11-22 13:33:34,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=492, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2024-11-22 13:33:34,441 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2024-11-22 13:33:34,441 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 492 flow [2024-11-22 13:33:34,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-11-22 13:33:34,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:34,441 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] [2024-11-22 13:33:34,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:33:34,442 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)] === [2024-11-22 13:33:34,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:34,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1925139458, now seen corresponding path program 1 times [2024-11-22 13:33:34,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:34,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564000436] [2024-11-22 13:33:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:34,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:34,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:34,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564000436] [2024-11-22 13:33:34,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564000436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:34,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:34,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:33:34,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379210108] [2024-11-22 13:33:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:34,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:33:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:33:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:33:34,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-22 13:33:34,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 66 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-22 13:33:34,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:34,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-22 13:33:34,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:39,086 INFO L124 PetriNetUnfolderBase]: 28429/40970 cut-off events. [2024-11-22 13:33:39,086 INFO L125 PetriNetUnfolderBase]: For 153970/154002 co-relation queries the response was YES. [2024-11-22 13:33:39,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149853 conditions, 40970 events. 28429/40970 cut-off events. For 153970/154002 co-relation queries the response was YES. Maximal size of possible extension queue 1582. Compared 282620 event pairs, 3318 based on Foata normal form. 824/41780 useless extension candidates. Maximal degree in co-relation 149820. Up to 15895 conditions per place. [2024-11-22 13:33:39,444 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 77 selfloop transitions, 30 changer transitions 90/207 dead transitions. [2024-11-22 13:33:39,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 207 transitions, 1802 flow [2024-11-22 13:33:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:33:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 13:33:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 301 transitions. [2024-11-22 13:33:39,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-22 13:33:39,446 INFO L175 Difference]: Start difference. First operand has 83 places, 66 transitions, 492 flow. Second operand 10 states and 301 transitions. [2024-11-22 13:33:39,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 207 transitions, 1802 flow [2024-11-22 13:33:40,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 207 transitions, 1706 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-11-22 13:33:40,355 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 797 flow [2024-11-22 13:33:40,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=797, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-11-22 13:33:40,356 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2024-11-22 13:33:40,356 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 797 flow [2024-11-22 13:33:40,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-22 13:33:40,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:40,356 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] [2024-11-22 13:33:40,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:33:40,356 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)] === [2024-11-22 13:33:40,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1693354587, now seen corresponding path program 1 times [2024-11-22 13:33:40,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:40,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969792788] [2024-11-22 13:33:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969792788] [2024-11-22 13:33:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969792788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:40,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:33:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455563137] [2024-11-22 13:33:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:40,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:33:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:33:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:33:40,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-22 13:33:40,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-11-22 13:33:40,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:40,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-22 13:33:40,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:47,193 INFO L124 PetriNetUnfolderBase]: 38568/55912 cut-off events. [2024-11-22 13:33:47,193 INFO L125 PetriNetUnfolderBase]: For 290959/290959 co-relation queries the response was YES. [2024-11-22 13:33:47,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213301 conditions, 55912 events. 38568/55912 cut-off events. For 290959/290959 co-relation queries the response was YES. Maximal size of possible extension queue 2197. Compared 412751 event pairs, 6401 based on Foata normal form. 963/56858 useless extension candidates. Maximal degree in co-relation 213261. Up to 18730 conditions per place. [2024-11-22 13:33:47,943 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 77 selfloop transitions, 41 changer transitions 88/216 dead transitions. [2024-11-22 13:33:47,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 216 transitions, 2013 flow [2024-11-22 13:33:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 13:33:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 13:33:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2024-11-22 13:33:47,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163265306122448 [2024-11-22 13:33:47,944 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 797 flow. Second operand 10 states and 302 transitions. [2024-11-22 13:33:47,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 216 transitions, 2013 flow [2024-11-22 13:33:49,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 216 transitions, 1959 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-11-22 13:33:49,336 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 1052 flow [2024-11-22 13:33:49,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1052, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-22 13:33:49,337 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2024-11-22 13:33:49,337 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 1052 flow [2024-11-22 13:33:49,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-11-22 13:33:49,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:49,338 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] [2024-11-22 13:33:49,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:33:49,338 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)] === [2024-11-22 13:33:49,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2057749845, now seen corresponding path program 1 times [2024-11-22 13:33:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567818920] [2024-11-22 13:33:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:49,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:49,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:49,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567818920] [2024-11-22 13:33:49,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567818920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:49,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:49,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:33:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590386561] [2024-11-22 13:33:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:49,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:33:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:33:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:33:49,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:33:49,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 1052 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) [2024-11-22 13:33:49,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:49,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:33:49,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand