./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:30:41,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:30:41,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:30:41,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:30:41,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:30:41,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:30:41,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:30:41,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:30:41,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:30:41,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:30:41,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:30:41,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:30:41,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:30:41,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:30:41,557 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:30:41,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:30:41,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:30:41,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:30:41,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:30:41,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:30:41,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:30:41,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:30:41,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:30:41,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:30:41,565 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:30:41,565 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:30:41,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:30:41,566 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:30:41,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:30:41,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:30:41,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:30:41,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:30:41,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:30:41,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:30:41,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:30:41,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:30:41,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:30:41,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:30:41,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:30:41,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:30:41,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:30:41,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:30:41,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-11-09 02:30:41,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:30:41,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:30:41,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:30:41,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:30:41,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:30:41,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 02:30:43,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:30:43,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:30:43,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 02:30:43,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8cc4da7a/e2585e89ef8b4020bad372de38fd79be/FLAG07d085426 [2024-11-09 02:30:43,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8cc4da7a/e2585e89ef8b4020bad372de38fd79be [2024-11-09 02:30:43,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:30:43,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:30:43,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:30:43,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:30:43,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:30:43,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:30:43" (1/1) ... [2024-11-09 02:30:43,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc0b886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:43, skipping insertion in model container [2024-11-09 02:30:43,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:30:43" (1/1) ... [2024-11-09 02:30:44,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:30:44,272 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-11-09 02:30:44,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:30:44,464 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:30:44,479 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-11-09 02:30:44,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:30:44,584 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:30:44,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44 WrapperNode [2024-11-09 02:30:44,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:30:44,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:30:44,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:30:44,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:30:44,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,660 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2024-11-09 02:30:44,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:30:44,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:30:44,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:30:44,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:30:44,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,699 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 02:30:44,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:30:44,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:30:44,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:30:44,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:30:44,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (1/1) ... [2024-11-09 02:30:44,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:30:44,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:30:44,761 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 02:30:44,764 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 02:30:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:30:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:30:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:30:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:30:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:30:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:30:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 02:30:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 02:30:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 02:30:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 02:30:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:30:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:30:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:30:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:30:44,824 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 02:30:45,000 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:30:45,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:30:45,330 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:30:45,332 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:30:45,548 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:30:45,549 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:30:45,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:30:45 BoogieIcfgContainer [2024-11-09 02:30:45,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:30:45,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:30:45,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:30:45,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:30:45,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:30:43" (1/3) ... [2024-11-09 02:30:45,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d3eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:30:45, skipping insertion in model container [2024-11-09 02:30:45,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:44" (2/3) ... [2024-11-09 02:30:45,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d3eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:30:45, skipping insertion in model container [2024-11-09 02:30:45,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:30:45" (3/3) ... [2024-11-09 02:30:45,561 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 02:30:45,577 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:30:45,577 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:30:45,578 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:30:45,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:30:45,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-11-09 02:30:45,755 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-11-09 02:30:45,757 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:45,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2024-11-09 02:30:45,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-11-09 02:30:45,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-11-09 02:30:45,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:30:45,787 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;@f67656c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:30:45,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:30:45,797 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:30:45,797 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-09 02:30:45,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:45,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:45,798 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:45,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:45,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1793883208, now seen corresponding path program 1 times [2024-11-09 02:30:45,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:45,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604902955] [2024-11-09 02:30:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:46,369 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 02:30:46,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:46,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604902955] [2024-11-09 02:30:46,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604902955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:46,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:46,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 02:30:46,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223261302] [2024-11-09 02:30:46,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:46,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:30:46,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:30:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:30:46,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 48 [2024-11-09 02:30:46,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2024-11-09 02:30:46,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:46,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 48 [2024-11-09 02:30:46,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:46,887 INFO L124 PetriNetUnfolderBase]: 815/1447 cut-off events. [2024-11-09 02:30:46,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:46,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1447 events. 815/1447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9993 event pairs, 179 based on Foata normal form. 48/1452 useless extension candidates. Maximal degree in co-relation 2667. Up to 889 conditions per place. [2024-11-09 02:30:46,907 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-11-09 02:30:46,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 178 flow [2024-11-09 02:30:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:30:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:30:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-09 02:30:46,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-09 02:30:46,923 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 109 transitions. [2024-11-09 02:30:46,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 178 flow [2024-11-09 02:30:46,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 02:30:46,934 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-11-09 02:30:46,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-11-09 02:30:46,941 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-11-09 02:30:46,941 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-11-09 02:30:46,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2024-11-09 02:30:46,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:46,942 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:46,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:30:46,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:46,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2094359865, now seen corresponding path program 1 times [2024-11-09 02:30:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:46,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965737930] [2024-11-09 02:30:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:48,026 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 02:30:48,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:48,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965737930] [2024-11-09 02:30:48,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965737930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:48,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:48,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:48,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164846890] [2024-11-09 02:30:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:48,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:48,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:48,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:48,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-09 02:30:48,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 02:30:48,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:48,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-09 02:30:48,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:50,765 INFO L124 PetriNetUnfolderBase]: 12743/19380 cut-off events. [2024-11-09 02:30:50,766 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-11-09 02:30:50,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37942 conditions, 19380 events. 12743/19380 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 145048 event pairs, 411 based on Foata normal form. 0/18919 useless extension candidates. Maximal degree in co-relation 37932. Up to 6976 conditions per place. [2024-11-09 02:30:50,903 INFO L140 encePairwiseOnDemand]: 34/48 looper letters, 53 selfloop transitions, 12 changer transitions 99/178 dead transitions. [2024-11-09 02:30:50,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 726 flow [2024-11-09 02:30:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:30:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:30:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 383 transitions. [2024-11-09 02:30:50,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6649305555555556 [2024-11-09 02:30:50,910 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 12 states and 383 transitions. [2024-11-09 02:30:50,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 726 flow [2024-11-09 02:30:50,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 178 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:30:50,921 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 228 flow [2024-11-09 02:30:50,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=228, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2024-11-09 02:30:50,922 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-11-09 02:30:50,922 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 228 flow [2024-11-09 02:30:50,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 02:30:50,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:50,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:50,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:30:50,923 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:50,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:50,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1563188216, now seen corresponding path program 1 times [2024-11-09 02:30:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:50,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146014208] [2024-11-09 02:30:50,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:51,770 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 02:30:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:51,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146014208] [2024-11-09 02:30:51,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146014208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:51,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:51,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379170994] [2024-11-09 02:30:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:51,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:51,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:51,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-09 02:30:51,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 02:30:51,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:51,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-09 02:30:51,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:54,033 INFO L124 PetriNetUnfolderBase]: 9456/15774 cut-off events. [2024-11-09 02:30:54,034 INFO L125 PetriNetUnfolderBase]: For 29496/29502 co-relation queries the response was YES. [2024-11-09 02:30:54,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50095 conditions, 15774 events. 9456/15774 cut-off events. For 29496/29502 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 128395 event pairs, 618 based on Foata normal form. 380/16085 useless extension candidates. Maximal degree in co-relation 50074. Up to 6405 conditions per place. [2024-11-09 02:30:54,181 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 57 selfloop transitions, 15 changer transitions 78/164 dead transitions. [2024-11-09 02:30:54,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 164 transitions, 1170 flow [2024-11-09 02:30:54,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2024-11-09 02:30:54,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-09 02:30:54,185 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 228 flow. Second operand 10 states and 312 transitions. [2024-11-09 02:30:54,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 164 transitions, 1170 flow [2024-11-09 02:30:54,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1090 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-11-09 02:30:54,365 INFO L231 Difference]: Finished difference. Result has 77 places, 62 transitions, 398 flow [2024-11-09 02:30:54,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=62} [2024-11-09 02:30:54,366 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-11-09 02:30:54,367 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 62 transitions, 398 flow [2024-11-09 02:30:54,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 02:30:54,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:54,367 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 02:30:54,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:30:54,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:54,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 88273458, now seen corresponding path program 1 times [2024-11-09 02:30:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346213051] [2024-11-09 02:30:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:55,074 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 02:30:55,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346213051] [2024-11-09 02:30:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346213051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:30:55,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237621661] [2024-11-09 02:30:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:55,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:55,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:55,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-09 02:30:55,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 62 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 02:30:55,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:55,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-09 02:30:55,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:57,344 INFO L124 PetriNetUnfolderBase]: 11217/18234 cut-off events. [2024-11-09 02:30:57,344 INFO L125 PetriNetUnfolderBase]: For 56757/56757 co-relation queries the response was YES. [2024-11-09 02:30:57,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66284 conditions, 18234 events. 11217/18234 cut-off events. For 56757/56757 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 149156 event pairs, 2140 based on Foata normal form. 350/18310 useless extension candidates. Maximal degree in co-relation 66256. Up to 5814 conditions per place. [2024-11-09 02:30:57,542 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 61 selfloop transitions, 27 changer transitions 68/170 dead transitions. [2024-11-09 02:30:57,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 170 transitions, 1408 flow [2024-11-09 02:30:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:57,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-11-09 02:30:57,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6395833333333333 [2024-11-09 02:30:57,545 INFO L175 Difference]: Start difference. First operand has 77 places, 62 transitions, 398 flow. Second operand 10 states and 307 transitions. [2024-11-09 02:30:57,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 170 transitions, 1408 flow [2024-11-09 02:30:57,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 170 transitions, 1362 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-11-09 02:30:57,823 INFO L231 Difference]: Finished difference. Result has 89 places, 73 transitions, 646 flow [2024-11-09 02:30:57,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=646, PETRI_PLACES=89, PETRI_TRANSITIONS=73} [2024-11-09 02:30:57,824 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2024-11-09 02:30:57,824 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 646 flow [2024-11-09 02:30:57,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 02:30:57,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:57,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:57,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:30:57,825 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:57,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2101487005, now seen corresponding path program 1 times [2024-11-09 02:30:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559601343] [2024-11-09 02:30:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:58,573 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 02:30:58,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559601343] [2024-11-09 02:30:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559601343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:58,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:58,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:58,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093951984] [2024-11-09 02:30:58,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:58,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:58,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:58,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-09 02:30:58,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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 02:30:58,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:58,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-09 02:30:58,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:00,629 INFO L124 PetriNetUnfolderBase]: 10743/18721 cut-off events. [2024-11-09 02:31:00,629 INFO L125 PetriNetUnfolderBase]: For 96053/97665 co-relation queries the response was YES. [2024-11-09 02:31:00,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74572 conditions, 18721 events. 10743/18721 cut-off events. For 96053/97665 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 168009 event pairs, 3158 based on Foata normal form. 622/18334 useless extension candidates. Maximal degree in co-relation 74533. Up to 10870 conditions per place. [2024-11-09 02:31:01,053 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 58 selfloop transitions, 14 changer transitions 20/130 dead transitions. [2024-11-09 02:31:01,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 130 transitions, 1312 flow [2024-11-09 02:31:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:31:01,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:31:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-11-09 02:31:01,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-11-09 02:31:01,056 INFO L175 Difference]: Start difference. First operand has 89 places, 73 transitions, 646 flow. Second operand 7 states and 214 transitions. [2024-11-09 02:31:01,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 130 transitions, 1312 flow [2024-11-09 02:31:01,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 1268 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-11-09 02:31:01,221 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 784 flow [2024-11-09 02:31:01,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=784, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-11-09 02:31:01,224 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-11-09 02:31:01,225 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 784 flow [2024-11-09 02:31:01,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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 02:31:01,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:01,226 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] [2024-11-09 02:31:01,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:31:01,226 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:01,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash 319451581, now seen corresponding path program 1 times [2024-11-09 02:31:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659939168] [2024-11-09 02:31:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:01,892 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 02:31:01,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:01,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659939168] [2024-11-09 02:31:01,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659939168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:01,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:01,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:01,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959942665] [2024-11-09 02:31:01,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:01,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:31:01,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:31:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:31:01,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-09 02:31:01,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 784 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:31:01,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:01,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-09 02:31:01,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:04,630 INFO L124 PetriNetUnfolderBase]: 11678/20663 cut-off events. [2024-11-09 02:31:04,631 INFO L125 PetriNetUnfolderBase]: For 117080/118606 co-relation queries the response was YES. [2024-11-09 02:31:04,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86252 conditions, 20663 events. 11678/20663 cut-off events. For 117080/118606 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 192448 event pairs, 2097 based on Foata normal form. 565/20244 useless extension candidates. Maximal degree in co-relation 86215. Up to 11097 conditions per place. [2024-11-09 02:31:05,023 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 71 selfloop transitions, 30 changer transitions 26/165 dead transitions. [2024-11-09 02:31:05,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 165 transitions, 1842 flow [2024-11-09 02:31:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:31:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:31:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2024-11-09 02:31:05,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-11-09 02:31:05,025 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 784 flow. Second operand 10 states and 297 transitions. [2024-11-09 02:31:05,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 165 transitions, 1842 flow [2024-11-09 02:31:05,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 165 transitions, 1767 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-09 02:31:05,219 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 1083 flow [2024-11-09 02:31:05,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1083, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2024-11-09 02:31:05,221 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 42 predicate places. [2024-11-09 02:31:05,221 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 1083 flow [2024-11-09 02:31:05,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:31:05,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:05,222 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 02:31:05,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:31:05,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:05,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1473979817, now seen corresponding path program 1 times [2024-11-09 02:31:05,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:05,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378529559] [2024-11-09 02:31:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:06,006 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 02:31:06,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:06,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378529559] [2024-11-09 02:31:06,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378529559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:06,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:06,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:06,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543796058] [2024-11-09 02:31:06,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:06,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:31:06,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:06,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:31:06,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:31:06,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-09 02:31:06,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 1083 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:31:06,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:06,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-09 02:31:06,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:09,852 INFO L124 PetriNetUnfolderBase]: 14778/26289 cut-off events. [2024-11-09 02:31:09,852 INFO L125 PetriNetUnfolderBase]: For 183646/185503 co-relation queries the response was YES. [2024-11-09 02:31:10,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115898 conditions, 26289 events. 14778/26289 cut-off events. For 183646/185503 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 255317 event pairs, 2553 based on Foata normal form. 719/25859 useless extension candidates. Maximal degree in co-relation 115855. Up to 11125 conditions per place. [2024-11-09 02:31:10,132 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 86 selfloop transitions, 57 changer transitions 40/221 dead transitions. [2024-11-09 02:31:10,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 221 transitions, 2724 flow [2024-11-09 02:31:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 02:31:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 02:31:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 386 transitions. [2024-11-09 02:31:10,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6185897435897436 [2024-11-09 02:31:10,134 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 1083 flow. Second operand 13 states and 386 transitions. [2024-11-09 02:31:10,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 221 transitions, 2724 flow [2024-11-09 02:31:10,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 221 transitions, 2576 flow, removed 74 selfloop flow, removed 0 redundant places. [2024-11-09 02:31:10,828 INFO L231 Difference]: Finished difference. Result has 117 places, 136 transitions, 1644 flow [2024-11-09 02:31:10,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1644, PETRI_PLACES=117, PETRI_TRANSITIONS=136} [2024-11-09 02:31:10,829 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 61 predicate places. [2024-11-09 02:31:10,829 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 136 transitions, 1644 flow [2024-11-09 02:31:10,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 02:31:10,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:10,831 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 02:31:10,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:31:10,831 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:10,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1354845608, now seen corresponding path program 1 times [2024-11-09 02:31:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400849069] [2024-11-09 02:31:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:10,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:11,508 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 02:31:11,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:11,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400849069] [2024-11-09 02:31:11,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400849069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:11,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:11,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:31:11,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119677063] [2024-11-09 02:31:11,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:11,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:31:11,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:11,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:31:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:31:11,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-09 02:31:11,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 136 transitions, 1644 flow. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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 02:31:11,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:11,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-09 02:31:11,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:15,313 INFO L124 PetriNetUnfolderBase]: 14236/25758 cut-off events. [2024-11-09 02:31:15,313 INFO L125 PetriNetUnfolderBase]: For 240096/242127 co-relation queries the response was YES. [2024-11-09 02:31:15,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122399 conditions, 25758 events. 14236/25758 cut-off events. For 240096/242127 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 254260 event pairs, 2293 based on Foata normal form. 532/25024 useless extension candidates. Maximal degree in co-relation 122347. Up to 13640 conditions per place. [2024-11-09 02:31:15,656 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 104 selfloop transitions, 35 changer transitions 24/201 dead transitions. [2024-11-09 02:31:15,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 201 transitions, 2739 flow [2024-11-09 02:31:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:31:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:31:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-11-09 02:31:15,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-11-09 02:31:15,658 INFO L175 Difference]: Start difference. First operand has 117 places, 136 transitions, 1644 flow. Second operand 8 states and 244 transitions. [2024-11-09 02:31:15,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 201 transitions, 2739 flow [2024-11-09 02:31:16,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 201 transitions, 2620 flow, removed 52 selfloop flow, removed 3 redundant places. [2024-11-09 02:31:16,811 INFO L231 Difference]: Finished difference. Result has 125 places, 140 transitions, 1750 flow [2024-11-09 02:31:16,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1750, PETRI_PLACES=125, PETRI_TRANSITIONS=140} [2024-11-09 02:31:16,812 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-11-09 02:31:16,812 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 140 transitions, 1750 flow [2024-11-09 02:31:16,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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 02:31:16,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:16,813 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] [2024-11-09 02:31:16,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:31:16,813 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:16,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash -817172865, now seen corresponding path program 1 times [2024-11-09 02:31:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659174601] [2024-11-09 02:31:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:16,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:17,593 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 02:31:17,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:17,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659174601] [2024-11-09 02:31:17,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659174601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:17,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:17,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:31:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530204501] [2024-11-09 02:31:17,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:17,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:31:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:31:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:31:17,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-11-09 02:31:17,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 140 transitions, 1750 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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 02:31:17,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:17,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-11-09 02:31:17,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:22,817 INFO L124 PetriNetUnfolderBase]: 19986/33620 cut-off events. [2024-11-09 02:31:22,818 INFO L125 PetriNetUnfolderBase]: For 340981/342194 co-relation queries the response was YES. [2024-11-09 02:31:23,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166532 conditions, 33620 events. 19986/33620 cut-off events. For 340981/342194 co-relation queries the response was YES. Maximal size of possible extension queue 2362. Compared 316141 event pairs, 8526 based on Foata normal form. 713/32874 useless extension candidates. Maximal degree in co-relation 166475. Up to 21968 conditions per place. [2024-11-09 02:31:23,283 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 90 selfloop transitions, 48 changer transitions 102/264 dead transitions. [2024-11-09 02:31:23,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 264 transitions, 3765 flow [2024-11-09 02:31:23,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:31:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:31:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 277 transitions. [2024-11-09 02:31:23,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5770833333333333 [2024-11-09 02:31:23,285 INFO L175 Difference]: Start difference. First operand has 125 places, 140 transitions, 1750 flow. Second operand 10 states and 277 transitions. [2024-11-09 02:31:23,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 264 transitions, 3765 flow [2024-11-09 02:31:24,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 264 transitions, 3651 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-09 02:31:25,000 INFO L231 Difference]: Finished difference. Result has 137 places, 141 transitions, 1970 flow [2024-11-09 02:31:25,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1643, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1970, PETRI_PLACES=137, PETRI_TRANSITIONS=141} [2024-11-09 02:31:25,001 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 81 predicate places. [2024-11-09 02:31:25,001 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 141 transitions, 1970 flow [2024-11-09 02:31:25,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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 02:31:25,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:25,001 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] [2024-11-09 02:31:25,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:31:25,002 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:25,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1797812301, now seen corresponding path program 2 times [2024-11-09 02:31:25,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:25,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686362316] [2024-11-09 02:31:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:25,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:25,604 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 02:31:25,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:25,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686362316] [2024-11-09 02:31:25,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686362316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:25,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:25,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:31:25,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606286257] [2024-11-09 02:31:25,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:25,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:31:25,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:31:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:31:25,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-11-09 02:31:25,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 1970 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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 02:31:25,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:25,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-11-09 02:31:25,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:29,388 INFO L124 PetriNetUnfolderBase]: 14601/23804 cut-off events. [2024-11-09 02:31:29,388 INFO L125 PetriNetUnfolderBase]: For 319646/321105 co-relation queries the response was YES. [2024-11-09 02:31:29,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137230 conditions, 23804 events. 14601/23804 cut-off events. For 319646/321105 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 201948 event pairs, 2054 based on Foata normal form. 798/23561 useless extension candidates. Maximal degree in co-relation 137168. Up to 13712 conditions per place. [2024-11-09 02:31:29,598 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 122 selfloop transitions, 61 changer transitions 53/260 dead transitions. [2024-11-09 02:31:29,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 260 transitions, 4040 flow [2024-11-09 02:31:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:31:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:31:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 259 transitions. [2024-11-09 02:31:29,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5995370370370371 [2024-11-09 02:31:29,600 INFO L175 Difference]: Start difference. First operand has 137 places, 141 transitions, 1970 flow. Second operand 9 states and 259 transitions. [2024-11-09 02:31:29,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 260 transitions, 4040 flow [2024-11-09 02:31:31,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 260 transitions, 3759 flow, removed 129 selfloop flow, removed 16 redundant places. [2024-11-09 02:31:31,391 INFO L231 Difference]: Finished difference. Result has 110 places, 162 transitions, 2393 flow [2024-11-09 02:31:31,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1795, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2393, PETRI_PLACES=110, PETRI_TRANSITIONS=162} [2024-11-09 02:31:31,393 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 54 predicate places. [2024-11-09 02:31:31,393 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 162 transitions, 2393 flow [2024-11-09 02:31:31,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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 02:31:31,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:31,393 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] [2024-11-09 02:31:31,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 02:31:31,393 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:31:31,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash -813808039, now seen corresponding path program 3 times [2024-11-09 02:31:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:31,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773767083] [2024-11-09 02:31:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:31,510 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 02:31:31,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:31,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773767083] [2024-11-09 02:31:31,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773767083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:31,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:31,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:31:31,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799503117] [2024-11-09 02:31:31,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:31,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:31:31,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:31,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:31:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:31:31,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-09 02:31:31,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 162 transitions, 2393 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:31,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:31,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-09 02:31:31,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand