./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:26:21,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:26:21,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:26:21,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:26:21,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:26:21,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:26:21,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:26:21,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:26:21,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:26:21,788 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:26:21,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:26:21,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:26:21,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:26:21,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:26:21,789 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:26:21,791 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:26:21,791 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:26:21,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:26:21,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:26:21,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:26:21,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:26:21,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:26:21,793 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2025-02-06 04:26:22,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:26:22,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:26:22,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:26:22,008 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:26:22,008 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:26:22,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 04:26:23,164 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eccdad612/7883bbb2203c411f9b27d47eaeee9eea/FLAG9f34499d3 [2025-02-06 04:26:23,493 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:26:23,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 04:26:23,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eccdad612/7883bbb2203c411f9b27d47eaeee9eea/FLAG9f34499d3 [2025-02-06 04:26:23,525 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eccdad612/7883bbb2203c411f9b27d47eaeee9eea [2025-02-06 04:26:23,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:26:23,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:26:23,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:26:23,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:26:23,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:26:23,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed21db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23, skipping insertion in model container [2025-02-06 04:26:23,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:26:23,690 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-02-06 04:26:23,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:26:23,851 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:26:23,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-02-06 04:26:23,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:26:23,928 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:26:23,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23 WrapperNode [2025-02-06 04:26:23,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:26:23,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:26:23,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:26:23,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:26:23,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,964 INFO L138 Inliner]: procedures = 176, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2025-02-06 04:26:23,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:26:23,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:26:23,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:26:23,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:26:23,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,989 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]. [2025-02-06 04:26:23,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,996 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:23,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:24,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:26:24,004 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:26:24,004 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:26:24,004 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:26:24,005 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (1/1) ... [2025-02-06 04:26:24,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:26:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:26:24,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 04:26:24,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:26:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:26:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:26:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 04:26:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 04:26:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:26:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:26:24,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:26:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:26:24,050 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:26:24,160 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:26:24,161 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:26:24,336 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:26:24,337 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:26:24,431 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:26:24,432 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:26:24,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:24 BoogieIcfgContainer [2025-02-06 04:26:24,432 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:26:24,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:26:24,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:26:24,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:26:24,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:26:23" (1/3) ... [2025-02-06 04:26:24,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c17a874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:26:24, skipping insertion in model container [2025-02-06 04:26:24,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:23" (2/3) ... [2025-02-06 04:26:24,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c17a874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:26:24, skipping insertion in model container [2025-02-06 04:26:24,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:24" (3/3) ... [2025-02-06 04:26:24,442 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 04:26:24,452 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:26:24,454 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 47 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 04:26:24,454 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:26:24,507 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:26:24,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 47 transitions, 110 flow [2025-02-06 04:26:24,570 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2025-02-06 04:26:24,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:26:24,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-06 04:26:24,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 47 transitions, 110 flow [2025-02-06 04:26:24,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 92 flow [2025-02-06 04:26:24,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:26:24,591 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;@68a6a3cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:26:24,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 04:26:24,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:26:24,601 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-06 04:26:24,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:26:24,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:24,602 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:24,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:24,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:24,606 INFO L85 PathProgramCache]: Analyzing trace with hash -232607829, now seen corresponding path program 1 times [2025-02-06 04:26:24,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:24,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177323563] [2025-02-06 04:26:24,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:24,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:24,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:26:24,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:26:24,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:24,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:24,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177323563] [2025-02-06 04:26:24,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177323563] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:24,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:26:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987369860] [2025-02-06 04:26:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:24,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:26:24,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:25,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:26:25,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:26:25,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-06 04:26:25,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-02-06 04:26:25,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:25,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-06 04:26:25,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:27,063 INFO L124 PetriNetUnfolderBase]: 28315/40035 cut-off events. [2025-02-06 04:26:27,064 INFO L125 PetriNetUnfolderBase]: For 234/234 co-relation queries the response was YES. [2025-02-06 04:26:27,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78479 conditions, 40035 events. 28315/40035 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 1372. Compared 256994 event pairs, 3739 based on Foata normal form. 1296/41308 useless extension candidates. Maximal degree in co-relation 78467. Up to 21681 conditions per place. [2025-02-06 04:26:27,312 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 71 selfloop transitions, 6 changer transitions 1/84 dead transitions. [2025-02-06 04:26:27,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 345 flow [2025-02-06 04:26:27,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 04:26:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 04:26:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2025-02-06 04:26:27,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2025-02-06 04:26:27,325 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 4 states and 124 transitions. [2025-02-06 04:26:27,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 345 flow [2025-02-06 04:26:27,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 84 transitions, 338 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:26:27,333 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 130 flow [2025-02-06 04:26:27,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2025-02-06 04:26:27,337 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2025-02-06 04:26:27,338 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 130 flow [2025-02-06 04:26:27,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-02-06 04:26:27,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:27,338 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:27,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:26:27,338 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:27,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1809783551, now seen corresponding path program 1 times [2025-02-06 04:26:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:27,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32069325] [2025-02-06 04:26:27,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:27,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:27,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 04:26:27,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 04:26:27,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:27,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:27,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:27,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32069325] [2025-02-06 04:26:27,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32069325] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:27,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:27,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:26:27,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504298442] [2025-02-06 04:26:27,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:27,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:26:27,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:27,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:26:27,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:26:27,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-06 04:26:27,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-02-06 04:26:27,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:27,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-06 04:26:27,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:28,831 INFO L124 PetriNetUnfolderBase]: 18843/26723 cut-off events. [2025-02-06 04:26:28,832 INFO L125 PetriNetUnfolderBase]: For 5242/5242 co-relation queries the response was YES. [2025-02-06 04:26:28,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60339 conditions, 26723 events. 18843/26723 cut-off events. For 5242/5242 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 160209 event pairs, 2151 based on Foata normal form. 1040/27740 useless extension candidates. Maximal degree in co-relation 60327. Up to 10161 conditions per place. [2025-02-06 04:26:28,976 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 92 selfloop transitions, 10 changer transitions 1/109 dead transitions. [2025-02-06 04:26:28,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 109 transitions, 495 flow [2025-02-06 04:26:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:26:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:26:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2025-02-06 04:26:28,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2025-02-06 04:26:28,981 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 130 flow. Second operand 5 states and 160 transitions. [2025-02-06 04:26:28,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 109 transitions, 495 flow [2025-02-06 04:26:28,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 109 transitions, 484 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 04:26:28,991 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 182 flow [2025-02-06 04:26:28,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2025-02-06 04:26:28,992 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2025-02-06 04:26:28,992 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 182 flow [2025-02-06 04:26:28,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-02-06 04:26:28,992 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:28,992 INFO L206 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] [2025-02-06 04:26:28,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:26:28,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1542919837, now seen corresponding path program 1 times [2025-02-06 04:26:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:28,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517573875] [2025-02-06 04:26:28,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:28,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 04:26:29,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 04:26:29,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:29,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:29,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:29,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517573875] [2025-02-06 04:26:29,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517573875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:26:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754188471] [2025-02-06 04:26:29,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:29,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:29,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:29,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:29,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:29,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-06 04:26:29,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-02-06 04:26:29,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:29,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-06 04:26:29,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:29,924 INFO L124 PetriNetUnfolderBase]: 11675/16355 cut-off events. [2025-02-06 04:26:29,924 INFO L125 PetriNetUnfolderBase]: For 9946/9946 co-relation queries the response was YES. [2025-02-06 04:26:29,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40607 conditions, 16355 events. 11675/16355 cut-off events. For 9946/9946 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 88198 event pairs, 1839 based on Foata normal form. 528/16860 useless extension candidates. Maximal degree in co-relation 40593. Up to 4800 conditions per place. [2025-02-06 04:26:29,980 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 111 selfloop transitions, 14 changer transitions 1/132 dead transitions. [2025-02-06 04:26:29,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 132 transitions, 650 flow [2025-02-06 04:26:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 194 transitions. [2025-02-06 04:26:29,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6879432624113475 [2025-02-06 04:26:29,984 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 182 flow. Second operand 6 states and 194 transitions. [2025-02-06 04:26:29,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 132 transitions, 650 flow [2025-02-06 04:26:30,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 132 transitions, 620 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-06 04:26:30,073 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 232 flow [2025-02-06 04:26:30,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2025-02-06 04:26:30,074 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-02-06 04:26:30,074 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 232 flow [2025-02-06 04:26:30,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2025-02-06 04:26:30,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:30,074 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:30,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:26:30,074 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:30,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1372917175, now seen corresponding path program 1 times [2025-02-06 04:26:30,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:30,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313272608] [2025-02-06 04:26:30,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:30,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 04:26:30,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 04:26:30,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:30,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:30,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:30,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313272608] [2025-02-06 04:26:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313272608] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:30,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:30,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:26:30,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238779186] [2025-02-06 04:26:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:30,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:26:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:30,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:26:30,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:26:30,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-06 04:26:30,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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) [2025-02-06 04:26:30,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:30,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-06 04:26:30,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:30,856 INFO L124 PetriNetUnfolderBase]: 9051/12451 cut-off events. [2025-02-06 04:26:30,856 INFO L125 PetriNetUnfolderBase]: For 9858/9858 co-relation queries the response was YES. [2025-02-06 04:26:30,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32128 conditions, 12451 events. 9051/12451 cut-off events. For 9858/9858 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 63975 event pairs, 1687 based on Foata normal form. 144/12572 useless extension candidates. Maximal degree in co-relation 32113. Up to 4608 conditions per place. [2025-02-06 04:26:30,911 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 96 selfloop transitions, 18 changer transitions 1/121 dead transitions. [2025-02-06 04:26:30,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 121 transitions, 616 flow [2025-02-06 04:26:30,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:26:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:26:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2025-02-06 04:26:30,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5896656534954408 [2025-02-06 04:26:30,918 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 232 flow. Second operand 7 states and 194 transitions. [2025-02-06 04:26:30,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 121 transitions, 616 flow [2025-02-06 04:26:31,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 121 transitions, 570 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-02-06 04:26:31,045 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 242 flow [2025-02-06 04:26:31,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=242, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2025-02-06 04:26:31,046 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2025-02-06 04:26:31,046 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 242 flow [2025-02-06 04:26:31,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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) [2025-02-06 04:26:31,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:31,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:31,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:26:31,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:31,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1670673117, now seen corresponding path program 1 times [2025-02-06 04:26:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461552918] [2025-02-06 04:26:31,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:31,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:31,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 04:26:31,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 04:26:31,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:31,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:31,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:31,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461552918] [2025-02-06 04:26:31,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461552918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:31,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:31,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:26:31,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074949504] [2025-02-06 04:26:31,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:31,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:31,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:31,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:31,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-02-06 04:26:31,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:31,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:31,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-02-06 04:26:31,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:32,117 INFO L124 PetriNetUnfolderBase]: 13391/18407 cut-off events. [2025-02-06 04:26:32,117 INFO L125 PetriNetUnfolderBase]: For 14848/14848 co-relation queries the response was YES. [2025-02-06 04:26:32,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47749 conditions, 18407 events. 13391/18407 cut-off events. For 14848/14848 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 100215 event pairs, 2791 based on Foata normal form. 16/18406 useless extension candidates. Maximal degree in co-relation 47733. Up to 7912 conditions per place. [2025-02-06 04:26:32,203 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 83 selfloop transitions, 3 changer transitions 32/123 dead transitions. [2025-02-06 04:26:32,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 123 transitions, 806 flow [2025-02-06 04:26:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:32,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-02-06 04:26:32,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5283687943262412 [2025-02-06 04:26:32,207 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 242 flow. Second operand 6 states and 149 transitions. [2025-02-06 04:26:32,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 123 transitions, 806 flow [2025-02-06 04:26:32,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 123 transitions, 581 flow, removed 34 selfloop flow, removed 10 redundant places. [2025-02-06 04:26:32,410 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 160 flow [2025-02-06 04:26:32,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2025-02-06 04:26:32,410 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2025-02-06 04:26:32,411 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 160 flow [2025-02-06 04:26:32,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:32,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:32,411 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:32,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:26:32,411 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:32,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2059194677, now seen corresponding path program 2 times [2025-02-06 04:26:32,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:32,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784417110] [2025-02-06 04:26:32,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:26:32,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:32,419 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 1 equivalence classes. [2025-02-06 04:26:32,426 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 04:26:32,426 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:26:32,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:32,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784417110] [2025-02-06 04:26:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784417110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:32,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:32,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:26:32,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313579262] [2025-02-06 04:26:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:32,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:32,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:32,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:32,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:32,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-02-06 04:26:32,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:32,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:32,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-02-06 04:26:32,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:33,074 INFO L124 PetriNetUnfolderBase]: 8815/12265 cut-off events. [2025-02-06 04:26:33,075 INFO L125 PetriNetUnfolderBase]: For 1938/1938 co-relation queries the response was YES. [2025-02-06 04:26:33,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28113 conditions, 12265 events. 8815/12265 cut-off events. For 1938/1938 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 61372 event pairs, 2051 based on Foata normal form. 16/12272 useless extension candidates. Maximal degree in co-relation 28099. Up to 5152 conditions per place. [2025-02-06 04:26:33,116 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 75 selfloop transitions, 3 changer transitions 32/115 dead transitions. [2025-02-06 04:26:33,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 115 transitions, 563 flow [2025-02-06 04:26:33,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2025-02-06 04:26:33,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-06 04:26:33,119 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 160 flow. Second operand 6 states and 141 transitions. [2025-02-06 04:26:33,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 115 transitions, 563 flow [2025-02-06 04:26:33,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 547 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-02-06 04:26:33,122 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 162 flow [2025-02-06 04:26:33,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2025-02-06 04:26:33,123 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places. [2025-02-06 04:26:33,124 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 162 flow [2025-02-06 04:26:33,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:33,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:33,124 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:33,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:26:33,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:33,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:33,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1747017543, now seen corresponding path program 3 times [2025-02-06 04:26:33,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:33,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121349903] [2025-02-06 04:26:33,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:26:33,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:33,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 36 statements into 1 equivalence classes. [2025-02-06 04:26:33,138 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 04:26:33,139 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:26:33,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:33,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:33,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121349903] [2025-02-06 04:26:33,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121349903] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:33,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:33,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:26:33,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448917542] [2025-02-06 04:26:33,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:33,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:26:33,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:33,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:26:33,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:26:33,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-02-06 04:26:33,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 162 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:26:33,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:33,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-02-06 04:26:33,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:33,658 INFO L124 PetriNetUnfolderBase]: 7173/10127 cut-off events. [2025-02-06 04:26:33,658 INFO L125 PetriNetUnfolderBase]: For 1932/1932 co-relation queries the response was YES. [2025-02-06 04:26:33,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23899 conditions, 10127 events. 7173/10127 cut-off events. For 1932/1932 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 50495 event pairs, 2643 based on Foata normal form. 16/10141 useless extension candidates. Maximal degree in co-relation 23885. Up to 4200 conditions per place. [2025-02-06 04:26:33,690 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 59 selfloop transitions, 3 changer transitions 60/127 dead transitions. [2025-02-06 04:26:33,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 127 transitions, 637 flow [2025-02-06 04:26:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:33,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2025-02-06 04:26:33,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5425531914893617 [2025-02-06 04:26:33,691 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 162 flow. Second operand 6 states and 153 transitions. [2025-02-06 04:26:33,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 127 transitions, 637 flow [2025-02-06 04:26:33,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 127 transitions, 613 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-02-06 04:26:33,697 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 164 flow [2025-02-06 04:26:33,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2025-02-06 04:26:33,698 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2025-02-06 04:26:33,698 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 164 flow [2025-02-06 04:26:33,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:26:33,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:33,698 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:33,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 04:26:33,698 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 04:26:33,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:33,699 INFO L85 PathProgramCache]: Analyzing trace with hash 659641617, now seen corresponding path program 4 times [2025-02-06 04:26:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:33,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214263587] [2025-02-06 04:26:33,699 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 04:26:33,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:33,709 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 36 statements into 2 equivalence classes. [2025-02-06 04:26:33,720 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 04:26:33,721 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 04:26:33,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:33,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:33,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214263587] [2025-02-06 04:26:33,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214263587] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:33,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:26:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695189896] [2025-02-06 04:26:33,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:33,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:33,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:33,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:33,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:33,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-02-06 04:26:33,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:33,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:33,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-02-06 04:26:33,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:34,025 INFO L124 PetriNetUnfolderBase]: 2865/4091 cut-off events. [2025-02-06 04:26:34,026 INFO L125 PetriNetUnfolderBase]: For 730/732 co-relation queries the response was YES. [2025-02-06 04:26:34,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9521 conditions, 4091 events. 2865/4091 cut-off events. For 730/732 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16531 event pairs, 1181 based on Foata normal form. 16/4107 useless extension candidates. Maximal degree in co-relation 9515. Up to 2064 conditions per place. [2025-02-06 04:26:34,033 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2025-02-06 04:26:34,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 74 transitions, 364 flow [2025-02-06 04:26:34,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:34,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2025-02-06 04:26:34,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40070921985815605 [2025-02-06 04:26:34,034 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 164 flow. Second operand 6 states and 113 transitions. [2025-02-06 04:26:34,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 74 transitions, 364 flow [2025-02-06 04:26:34,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 74 transitions, 354 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-06 04:26:34,037 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2025-02-06 04:26:34,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2025-02-06 04:26:34,038 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-02-06 04:26:34,038 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2025-02-06 04:26:34,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2025-02-06 04:26:34,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-02-06 04:26:34,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-02-06 04:26:34,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 04:26:34,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 04:26:34,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 04:26:34,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 04:26:34,042 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2025-02-06 04:26:34,044 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 04:26:34,044 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 04:26:34,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 04:26:34 BasicIcfg [2025-02-06 04:26:34,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 04:26:34,050 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 04:26:34,050 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 04:26:34,050 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 04:26:34,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:24" (3/4) ... [2025-02-06 04:26:34,052 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 04:26:34,054 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 04:26:34,054 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 04:26:34,054 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 04:26:34,055 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-06 04:26:34,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-06 04:26:34,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-06 04:26:34,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-06 04:26:34,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 04:26:34,112 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 04:26:34,112 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 04:26:34,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 04:26:34,113 INFO L158 Benchmark]: Toolchain (without parser) took 10583.63ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 105.6MB in the beginning and 765.1MB in the end (delta: -659.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-02-06 04:26:34,113 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:26:34,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.36ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 85.4MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 04:26:34,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.67ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 83.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:26:34,114 INFO L158 Benchmark]: Boogie Preprocessor took 34.70ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 81.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:26:34,115 INFO L158 Benchmark]: IcfgBuilder took 428.16ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 60.2MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 04:26:34,115 INFO L158 Benchmark]: TraceAbstraction took 9615.19ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 59.1MB in the beginning and 769.2MB in the end (delta: -710.1MB). Peak memory consumption was 964.4MB. Max. memory is 16.1GB. [2025-02-06 04:26:34,115 INFO L158 Benchmark]: Witness Printer took 62.21ms. Allocated memory is still 1.8GB. Free memory was 769.2MB in the beginning and 765.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:26:34,116 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.36ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 85.4MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.67ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 83.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.70ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 81.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 428.16ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 60.2MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9615.19ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 59.1MB in the beginning and 769.2MB in the end (delta: -710.1MB). Peak memory consumption was 964.4MB. Max. memory is 16.1GB. * Witness Printer took 62.21ms. Allocated memory is still 1.8GB. Free memory was 769.2MB in the beginning and 765.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 789 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 780 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1194 IncrementalHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 0 mSDtfsCounter, 1194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=4, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 04:26:34,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE