./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/mix005_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:11:47,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:11:47,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:11:47,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:11:47,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:11:47,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:11:47,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:11:47,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:11:47,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:11:47,464 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:11:47,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:11:47,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:11:47,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:11:47,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:11:47,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:11:47,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:11:47,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:11:47,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:11:47,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:11:47,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:11:47,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:11:47,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:11:47,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:11:47,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:11:47,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:11:47,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:11:47,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:11:47,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:11:47,469 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:11:47,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:11:47,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:11:47,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:11:47,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:11:47,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:11:47,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:11:47,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:11:47,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:11:47,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:11:47,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:11:47,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:11:47,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:11:47,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:11:47,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 [2024-11-10 10:11:47,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:11:47,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:11:47,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:11:47,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:11:47,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:11:47,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2024-11-10 10:11:49,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:11:49,397 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:11:49,398 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2024-11-10 10:11:49,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/293e05a3b/639b674fc797452baba194ad555a2569/FLAG373abb0ad [2024-11-10 10:11:49,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/293e05a3b/639b674fc797452baba194ad555a2569 [2024-11-10 10:11:49,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:11:49,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:11:49,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:11:49,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:11:49,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:11:49,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:49,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a431cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49, skipping insertion in model container [2024-11-10 10:11:49,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:49,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:11:49,686 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/mix005_tso.oepc.i[949,962] [2024-11-10 10:11:49,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:11:49,886 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:11:49,897 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/mix005_tso.oepc.i[949,962] [2024-11-10 10:11:49,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:11:49,969 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:11:49,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49 WrapperNode [2024-11-10 10:11:49,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:11:49,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:11:49,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:11:49,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:11:49,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:49,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,026 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2024-11-10 10:11:50,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:11:50,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:11:50,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:11:50,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:11:50,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,063 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]. [2024-11-10 10:11:50,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,073 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:11:50,087 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:11:50,091 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:11:50,091 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:11:50,092 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (1/1) ... [2024-11-10 10:11:50,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:11:50,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:11:50,138 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) [2024-11-10 10:11:50,141 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 [2024-11-10 10:11:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:11:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:11:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:11:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:11:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:11:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:11:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:11:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:11:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 10:11:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 10:11:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:11:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:11:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:11:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:11:50,184 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:11:50,328 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:11:50,331 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:11:50,640 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:11:50,640 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:11:50,854 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:11:50,854 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:11:50,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:11:50 BoogieIcfgContainer [2024-11-10 10:11:50,855 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:11:50,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:11:50,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:11:50,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:11:50,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:11:49" (1/3) ... [2024-11-10 10:11:50,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7541ac34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:11:50, skipping insertion in model container [2024-11-10 10:11:50,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:49" (2/3) ... [2024-11-10 10:11:50,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7541ac34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:11:50, skipping insertion in model container [2024-11-10 10:11:50,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:11:50" (3/3) ... [2024-11-10 10:11:50,861 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_tso.oepc.i [2024-11-10 10:11:50,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:11:50,875 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:11:50,876 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:11:50,961 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:11:50,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2024-11-10 10:11:51,022 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-10 10:11:51,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:11:51,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-10 10:11:51,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2024-11-10 10:11:51,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2024-11-10 10:11:51,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:11:51,041 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;@501bd78f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:11:51,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 10:11:51,044 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:11:51,044 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-10 10:11:51,044 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:11:51,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:11:51,045 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 10:11:51,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:11:51,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:11:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash -11233496, now seen corresponding path program 1 times [2024-11-10 10:11:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:11:51,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666649890] [2024-11-10 10:11:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:11:51,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:11:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:11:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:11:51,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:11:51,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666649890] [2024-11-10 10:11:51,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666649890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:11:51,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:11:51,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 10:11:51,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275398123] [2024-11-10 10:11:51,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:11:51,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:11:51,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:11:51,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:11:51,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:11:51,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-11-10 10:11:51,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-10 10:11:51,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:11:51,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-11-10 10:11:51,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:11:57,494 INFO L124 PetriNetUnfolderBase]: 53315/70261 cut-off events. [2024-11-10 10:11:57,495 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-10 10:11:57,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140637 conditions, 70261 events. 53315/70261 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 2001. Compared 423095 event pairs, 6610 based on Foata normal form. 1764/71963 useless extension candidates. Maximal degree in co-relation 140625. Up to 60416 conditions per place. [2024-11-10 10:11:58,118 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 63 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2024-11-10 10:11:58,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 298 flow [2024-11-10 10:11:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:11:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:11:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-10 10:11:58,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 10:11:58,130 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-10 10:11:58,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 298 flow [2024-11-10 10:11:58,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 10:11:58,141 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2024-11-10 10:11:58,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-10 10:11:58,148 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2024-11-10 10:11:58,149 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2024-11-10 10:11:58,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-10 10:11:58,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:11:58,149 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:11:58,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:11:58,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:11:58,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:11:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2075252755, now seen corresponding path program 1 times [2024-11-10 10:11:58,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:11:58,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923563938] [2024-11-10 10:11:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:11:58,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:11:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:11:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:11:58,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:11:58,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923563938] [2024-11-10 10:11:58,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923563938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:11:58,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:11:58,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:11:58,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323587753] [2024-11-10 10:11:58,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:11:58,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:11:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:11:58,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:11:58,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:11:58,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:11:58,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-10 10:11:58,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:11:58,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:11:58,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:05,228 INFO L124 PetriNetUnfolderBase]: 62843/83903 cut-off events. [2024-11-10 10:12:05,228 INFO L125 PetriNetUnfolderBase]: For 3288/3288 co-relation queries the response was YES. [2024-11-10 10:12:05,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170369 conditions, 83903 events. 62843/83903 cut-off events. For 3288/3288 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 515921 event pairs, 10583 based on Foata normal form. 0/82576 useless extension candidates. Maximal degree in co-relation 170359. Up to 44905 conditions per place. [2024-11-10 10:12:05,902 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 57 selfloop transitions, 2 changer transitions 102/166 dead transitions. [2024-11-10 10:12:05,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 166 transitions, 680 flow [2024-11-10 10:12:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:12:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:12:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 235 transitions. [2024-11-10 10:12:05,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5875 [2024-11-10 10:12:05,905 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 235 transitions. [2024-11-10 10:12:05,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 166 transitions, 680 flow [2024-11-10 10:12:05,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 166 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:12:05,914 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 108 flow [2024-11-10 10:12:05,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=64, PETRI_TRANSITIONS=42} [2024-11-10 10:12:05,915 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-11-10 10:12:05,916 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 108 flow [2024-11-10 10:12:05,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-10 10:12:05,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:05,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:12:05,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:12:05,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:05,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -425199494, now seen corresponding path program 1 times [2024-11-10 10:12:05,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:05,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123136153] [2024-11-10 10:12:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:06,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:06,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:06,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123136153] [2024-11-10 10:12:06,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123136153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:06,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:06,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:12:06,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739312676] [2024-11-10 10:12:06,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:06,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:12:06,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:06,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:12:06,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:12:06,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:06,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-10 10:12:06,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:06,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:06,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:11,264 INFO L124 PetriNetUnfolderBase]: 45755/61343 cut-off events. [2024-11-10 10:12:11,264 INFO L125 PetriNetUnfolderBase]: For 10216/10216 co-relation queries the response was YES. [2024-11-10 10:12:11,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132370 conditions, 61343 events. 45755/61343 cut-off events. For 10216/10216 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 356918 event pairs, 10679 based on Foata normal form. 1260/62512 useless extension candidates. Maximal degree in co-relation 132355. Up to 38761 conditions per place. [2024-11-10 10:12:11,569 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 55 selfloop transitions, 2 changer transitions 71/133 dead transitions. [2024-11-10 10:12:11,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 133 transitions, 559 flow [2024-11-10 10:12:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:12:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:12:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2024-11-10 10:12:11,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5514285714285714 [2024-11-10 10:12:11,574 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 108 flow. Second operand 7 states and 193 transitions. [2024-11-10 10:12:11,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 133 transitions, 559 flow [2024-11-10 10:12:12,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 133 transitions, 537 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-10 10:12:12,213 INFO L231 Difference]: Finished difference. Result has 63 places, 42 transitions, 112 flow [2024-11-10 10:12:12,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, 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=7, PETRI_FLOW=112, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2024-11-10 10:12:12,213 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2024-11-10 10:12:12,214 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 112 flow [2024-11-10 10:12:12,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-10 10:12:12,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:12,214 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] [2024-11-10 10:12:12,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:12:12,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:12,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1647477512, now seen corresponding path program 1 times [2024-11-10 10:12:12,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:12,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467109843] [2024-11-10 10:12:12,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:12,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:12,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467109843] [2024-11-10 10:12:12,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467109843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:12,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:12:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725853355] [2024-11-10 10:12:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:12:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:12:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:12:12,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:12,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:12:12,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:12,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:12,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:18,093 INFO L124 PetriNetUnfolderBase]: 43767/58672 cut-off events. [2024-11-10 10:12:18,094 INFO L125 PetriNetUnfolderBase]: For 9778/9778 co-relation queries the response was YES. [2024-11-10 10:12:18,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128126 conditions, 58672 events. 43767/58672 cut-off events. For 9778/9778 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 350222 event pairs, 6895 based on Foata normal form. 924/59590 useless extension candidates. Maximal degree in co-relation 128110. Up to 48562 conditions per place. [2024-11-10 10:12:18,412 INFO L140 encePairwiseOnDemand]: 36/50 looper letters, 74 selfloop transitions, 12 changer transitions 83/174 dead transitions. [2024-11-10 10:12:18,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 174 transitions, 754 flow [2024-11-10 10:12:18,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:12:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:12:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-11-10 10:12:18,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.524 [2024-11-10 10:12:18,419 INFO L175 Difference]: Start difference. First operand has 63 places, 42 transitions, 112 flow. Second operand 10 states and 262 transitions. [2024-11-10 10:12:18,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 174 transitions, 754 flow [2024-11-10 10:12:19,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 174 transitions, 726 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-10 10:12:19,032 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 221 flow [2024-11-10 10:12:19,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2024-11-10 10:12:19,033 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-10 10:12:19,033 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 221 flow [2024-11-10 10:12:19,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:12:19,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:19,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:12:19,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:12:19,034 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:19,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1907332748, now seen corresponding path program 1 times [2024-11-10 10:12:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:19,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741287479] [2024-11-10 10:12:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:19,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:19,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:19,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741287479] [2024-11-10 10:12:19,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741287479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:19,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:19,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:12:19,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394621520] [2024-11-10 10:12:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:19,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:12:19,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:12:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:12:19,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-11-10 10:12:19,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-10 10:12:19,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:19,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-11-10 10:12:19,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:23,253 INFO L124 PetriNetUnfolderBase]: 36730/49851 cut-off events. [2024-11-10 10:12:23,253 INFO L125 PetriNetUnfolderBase]: For 57403/57405 co-relation queries the response was YES. [2024-11-10 10:12:23,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148294 conditions, 49851 events. 36730/49851 cut-off events. For 57403/57405 co-relation queries the response was YES. Maximal size of possible extension queue 1332. Compared 295718 event pairs, 4798 based on Foata normal form. 1809/51620 useless extension candidates. Maximal degree in co-relation 148274. Up to 26443 conditions per place. [2024-11-10 10:12:23,775 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 109 selfloop transitions, 6 changer transitions 1/121 dead transitions. [2024-11-10 10:12:23,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 121 transitions, 749 flow [2024-11-10 10:12:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:12:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:12:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-10 10:12:23,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.635 [2024-11-10 10:12:23,777 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 221 flow. Second operand 4 states and 127 transitions. [2024-11-10 10:12:23,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 121 transitions, 749 flow [2024-11-10 10:12:23,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 121 transitions, 745 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 10:12:23,864 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 259 flow [2024-11-10 10:12:23,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-11-10 10:12:23,865 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2024-11-10 10:12:23,865 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 259 flow [2024-11-10 10:12:23,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-10 10:12:23,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:23,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:12:23,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:12:23,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:23,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:23,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1733518185, now seen corresponding path program 1 times [2024-11-10 10:12:23,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:23,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560473184] [2024-11-10 10:12:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:24,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560473184] [2024-11-10 10:12:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560473184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:24,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:24,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 10:12:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660061280] [2024-11-10 10:12:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:24,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:12:24,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:12:24,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 10:12:24,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:24,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 259 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2024-11-10 10:12:24,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:24,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:24,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:29,394 INFO L124 PetriNetUnfolderBase]: 33997/46010 cut-off events. [2024-11-10 10:12:29,395 INFO L125 PetriNetUnfolderBase]: For 70534/70536 co-relation queries the response was YES. [2024-11-10 10:12:29,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149052 conditions, 46010 events. 33997/46010 cut-off events. For 70534/70536 co-relation queries the response was YES. Maximal size of possible extension queue 1090. Compared 265585 event pairs, 5620 based on Foata normal form. 502/46496 useless extension candidates. Maximal degree in co-relation 149030. Up to 37001 conditions per place. [2024-11-10 10:12:29,731 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 91 selfloop transitions, 14 changer transitions 75/185 dead transitions. [2024-11-10 10:12:29,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 185 transitions, 1251 flow [2024-11-10 10:12:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:12:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:12:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 254 transitions. [2024-11-10 10:12:29,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.508 [2024-11-10 10:12:29,734 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 259 flow. Second operand 10 states and 254 transitions. [2024-11-10 10:12:29,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 185 transitions, 1251 flow [2024-11-10 10:12:29,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 185 transitions, 1229 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 10:12:29,753 INFO L231 Difference]: Finished difference. Result has 82 places, 62 transitions, 369 flow [2024-11-10 10:12:29,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=82, PETRI_TRANSITIONS=62} [2024-11-10 10:12:29,754 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 24 predicate places. [2024-11-10 10:12:29,754 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 62 transitions, 369 flow [2024-11-10 10:12:29,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2024-11-10 10:12:29,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:29,754 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:12:29,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:12:29,755 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:29,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1860874853, now seen corresponding path program 1 times [2024-11-10 10:12:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:29,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358640132] [2024-11-10 10:12:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:30,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:30,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358640132] [2024-11-10 10:12:30,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358640132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:30,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:30,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 10:12:30,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706023295] [2024-11-10 10:12:30,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:30,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:12:30,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:12:30,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:12:30,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:30,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 62 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-10 10:12:30,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:30,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:30,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand