./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:22:49,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:22:49,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 17:22:49,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:22:49,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:22:49,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:22:49,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:22:49,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:22:49,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:22:49,262 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:22:49,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:22:49,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:22:49,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:22:49,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:22:49,263 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:22:49,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:22:49,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:22:49,264 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:22:49,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:22:49,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:22:49,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:22:49,265 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/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 [2025-03-08 17:22:49,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:22:49,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:22:49,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:22:49,505 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:22:49,505 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:22:49,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-08 17:22:50,676 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c444de5/45397c8a89d246a5b75f46f93ec7a94a/FLAG59a55c4aa [2025-03-08 17:22:51,024 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:22:51,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-08 17:22:51,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c444de5/45397c8a89d246a5b75f46f93ec7a94a/FLAG59a55c4aa [2025-03-08 17:22:51,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c444de5/45397c8a89d246a5b75f46f93ec7a94a [2025-03-08 17:22:51,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:22:51,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:22:51,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:22:51,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:22:51,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:22:51,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e03288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51, skipping insertion in model container [2025-03-08 17:22:51,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:22:51,421 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-03-08 17:22:51,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:22:51,581 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:22:51,591 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-03-08 17:22:51,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:22:51,657 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:22:51,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51 WrapperNode [2025-03-08 17:22:51,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:22:51,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:22:51,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:22:51,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:22:51,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,685 INFO L138 Inliner]: procedures = 176, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2025-03-08 17:22:51,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:22:51,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:22:51,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:22:51,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:22:51,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,708 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]. [2025-03-08 17:22:51,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:22:51,718 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:22:51,718 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:22:51,718 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:22:51,718 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (1/1) ... [2025-03-08 17:22:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:22:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:22:51,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:22:51,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-08 17:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-08 17:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-08 17:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-08 17:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 17:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:22:51,763 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 17:22:51,866 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:22:51,868 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:22:52,006 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 17:22:52,006 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:22:52,107 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:22:52,107 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:22:52,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:52 BoogieIcfgContainer [2025-03-08 17:22:52,108 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:22:52,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:22:52,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:22:52,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:22:52,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:22:51" (1/3) ... [2025-03-08 17:22:52,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5154747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:52, skipping insertion in model container [2025-03-08 17:22:52,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:51" (2/3) ... [2025-03-08 17:22:52,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5154747b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:52, skipping insertion in model container [2025-03-08 17:22:52,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:52" (3/3) ... [2025-03-08 17:22:52,117 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-08 17:22:52,127 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:22:52,129 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. [2025-03-08 17:22:52,129 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 17:22:52,183 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 17:22:52,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 47 transitions, 110 flow [2025-03-08 17:22:52,250 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2025-03-08 17:22:52,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 17:22:52,258 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. [2025-03-08 17:22:52,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 47 transitions, 110 flow [2025-03-08 17:22:52,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 92 flow [2025-03-08 17:22:52,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:22:52,277 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;@1f0c74e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:22:52,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-08 17:22:52,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 17:22:52,293 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-03-08 17:22:52,293 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 17:22:52,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:22:52,294 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:22:52,294 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)] === [2025-03-08 17:22:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:22:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -232607830, now seen corresponding path program 1 times [2025-03-08 17:22:52,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:22:52,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430762903] [2025-03-08 17:22:52,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:22:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:22:52,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-08 17:22:52,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-08 17:22:52,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:22:52,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:22:52,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:22:52,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:22:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430762903] [2025-03-08 17:22:52,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430762903] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:22:52,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:22:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 17:22:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524784730] [2025-03-08 17:22:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:22:52,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 17:22:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:22:52,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 17:22:52,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 17:22:52,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-08 17:22:52,772 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) [2025-03-08 17:22:52,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:22:52,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-08 17:22:52,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:22:55,022 INFO L124 PetriNetUnfolderBase]: 28315/40035 cut-off events. [2025-03-08 17:22:55,023 INFO L125 PetriNetUnfolderBase]: For 234/234 co-relation queries the response was YES. [2025-03-08 17:22:55,100 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 256906 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. [2025-03-08 17:22:55,272 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 71 selfloop transitions, 6 changer transitions 1/84 dead transitions. [2025-03-08 17:22:55,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 345 flow [2025-03-08 17:22:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 17:22:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-08 17:22:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2025-03-08 17:22:55,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2025-03-08 17:22:55,288 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 4 states and 124 transitions. [2025-03-08 17:22:55,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 345 flow [2025-03-08 17:22:55,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 84 transitions, 338 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 17:22:55,301 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 130 flow [2025-03-08 17:22:55,307 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} [2025-03-08 17:22:55,314 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2025-03-08 17:22:55,314 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 130 flow [2025-03-08 17:22:55,315 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) [2025-03-08 17:22:55,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:22:55,315 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] [2025-03-08 17:22:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 17:22:55,315 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)] === [2025-03-08 17:22:55,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:22:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1809783550, now seen corresponding path program 1 times [2025-03-08 17:22:55,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:22:55,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434771349] [2025-03-08 17:22:55,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:22:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:22:55,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-08 17:22:55,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-08 17:22:55,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:22:55,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:22:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:22:55,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:22:55,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434771349] [2025-03-08 17:22:55,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434771349] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:22:55,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:22:55,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 17:22:55,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931675944] [2025-03-08 17:22:55,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:22:55,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 17:22:55,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:22:55,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 17:22:55,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:22:55,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-08 17:22:55,565 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) [2025-03-08 17:22:55,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:22:55,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-08 17:22:55,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:22:57,020 INFO L124 PetriNetUnfolderBase]: 18843/26723 cut-off events. [2025-03-08 17:22:57,020 INFO L125 PetriNetUnfolderBase]: For 5242/5242 co-relation queries the response was YES. [2025-03-08 17:22:57,068 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 160359 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. [2025-03-08 17:22:57,138 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 92 selfloop transitions, 10 changer transitions 1/109 dead transitions. [2025-03-08 17:22:57,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 109 transitions, 495 flow [2025-03-08 17:22:57,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 17:22:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-08 17:22:57,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2025-03-08 17:22:57,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2025-03-08 17:22:57,140 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 130 flow. Second operand 5 states and 160 transitions. [2025-03-08 17:22:57,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 109 transitions, 495 flow [2025-03-08 17:22:57,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 109 transitions, 484 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-08 17:22:57,152 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 182 flow [2025-03-08 17:22:57,153 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} [2025-03-08 17:22:57,153 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2025-03-08 17:22:57,153 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 182 flow [2025-03-08 17:22:57,154 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) [2025-03-08 17:22:57,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:22:57,154 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] [2025-03-08 17:22:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:22:57,155 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)] === [2025-03-08 17:22:57,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:22:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1542919836, now seen corresponding path program 1 times [2025-03-08 17:22:57,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:22:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240690170] [2025-03-08 17:22:57,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:22:57,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:22:57,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-08 17:22:57,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-08 17:22:57,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:22:57,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:22:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:22:57,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:22:57,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240690170] [2025-03-08 17:22:57,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240690170] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:22:57,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:22:57,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 17:22:57,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061152624] [2025-03-08 17:22:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:22:57,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:22:57,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:22:57,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:22:57,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:22:57,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-08 17:22:57,324 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) [2025-03-08 17:22:57,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:22:57,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-08 17:22:57,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:22:58,126 INFO L124 PetriNetUnfolderBase]: 11675/16355 cut-off events. [2025-03-08 17:22:58,126 INFO L125 PetriNetUnfolderBase]: For 9946/9946 co-relation queries the response was YES. [2025-03-08 17:22:58,161 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 87966 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. [2025-03-08 17:22:58,202 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 111 selfloop transitions, 14 changer transitions 1/132 dead transitions. [2025-03-08 17:22:58,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 132 transitions, 650 flow [2025-03-08 17:22:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:22:58,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:22:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 194 transitions. [2025-03-08 17:22:58,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6879432624113475 [2025-03-08 17:22:58,206 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 182 flow. Second operand 6 states and 194 transitions. [2025-03-08 17:22:58,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 132 transitions, 650 flow [2025-03-08 17:22:58,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 132 transitions, 620 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-08 17:22:58,301 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 232 flow [2025-03-08 17:22:58,301 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} [2025-03-08 17:22:58,301 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-03-08 17:22:58,301 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 232 flow [2025-03-08 17:22:58,301 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) [2025-03-08 17:22:58,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:22:58,302 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] [2025-03-08 17:22:58,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 17:22:58,302 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)] === [2025-03-08 17:22:58,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:22:58,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1372917174, now seen corresponding path program 1 times [2025-03-08 17:22:58,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:22:58,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588094671] [2025-03-08 17:22:58,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:22:58,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:22:58,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 17:22:58,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 17:22:58,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:22:58,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:22:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:22:58,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:22:58,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588094671] [2025-03-08 17:22:58,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588094671] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:22:58,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:22:58,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:22:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491102568] [2025-03-08 17:22:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:22:58,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:22:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:22:58,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:22:58,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:22:58,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-03-08 17:22:58,451 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) [2025-03-08 17:22:58,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:22:58,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-03-08 17:22:58,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:22:59,074 INFO L124 PetriNetUnfolderBase]: 9051/12451 cut-off events. [2025-03-08 17:22:59,075 INFO L125 PetriNetUnfolderBase]: For 9858/9858 co-relation queries the response was YES. [2025-03-08 17:22:59,090 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 63944 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. [2025-03-08 17:22:59,119 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 96 selfloop transitions, 18 changer transitions 1/121 dead transitions. [2025-03-08 17:22:59,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 121 transitions, 616 flow [2025-03-08 17:22:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 17:22:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-08 17:22:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2025-03-08 17:22:59,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5896656534954408 [2025-03-08 17:22:59,121 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 232 flow. Second operand 7 states and 194 transitions. [2025-03-08 17:22:59,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 121 transitions, 616 flow [2025-03-08 17:22:59,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 121 transitions, 570 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-08 17:22:59,242 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 242 flow [2025-03-08 17:22:59,243 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} [2025-03-08 17:22:59,243 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2025-03-08 17:22:59,243 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 242 flow [2025-03-08 17:22:59,244 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) [2025-03-08 17:22:59,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:22:59,244 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] [2025-03-08 17:22:59,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 17:22:59,244 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)] === [2025-03-08 17:22:59,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:22:59,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1670673118, now seen corresponding path program 1 times [2025-03-08 17:22:59,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:22:59,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052587128] [2025-03-08 17:22:59,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:22:59,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:22:59,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 17:22:59,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 17:22:59,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:22:59,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:22:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:22:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:22:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052587128] [2025-03-08 17:22:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052587128] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:22:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:22:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 17:22:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881573985] [2025-03-08 17:22:59,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:22:59,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:22:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:22:59,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:22:59,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:22:59,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-08 17:22:59,422 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) [2025-03-08 17:22:59,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:22:59,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-08 17:22:59,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:00,145 INFO L124 PetriNetUnfolderBase]: 13391/18407 cut-off events. [2025-03-08 17:23:00,145 INFO L125 PetriNetUnfolderBase]: For 14848/14848 co-relation queries the response was YES. [2025-03-08 17:23:00,167 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 100193 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. [2025-03-08 17:23:00,197 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 83 selfloop transitions, 3 changer transitions 32/123 dead transitions. [2025-03-08 17:23:00,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 123 transitions, 806 flow [2025-03-08 17:23:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:23:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:23:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-03-08 17:23:00,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5283687943262412 [2025-03-08 17:23:00,199 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 242 flow. Second operand 6 states and 149 transitions. [2025-03-08 17:23:00,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 123 transitions, 806 flow [2025-03-08 17:23:00,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 123 transitions, 581 flow, removed 34 selfloop flow, removed 10 redundant places. [2025-03-08 17:23:00,350 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 160 flow [2025-03-08 17:23:00,350 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} [2025-03-08 17:23:00,351 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2025-03-08 17:23:00,351 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 160 flow [2025-03-08 17:23:00,351 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) [2025-03-08 17:23:00,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:00,351 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] [2025-03-08 17:23:00,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 17:23:00,352 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)] === [2025-03-08 17:23:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 769114396, now seen corresponding path program 2 times [2025-03-08 17:23:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:00,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919191915] [2025-03-08 17:23:00,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:23:00,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:00,360 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 1 equivalence classes. [2025-03-08 17:23:00,373 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 17:23:00,373 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 17:23:00,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:00,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:00,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919191915] [2025-03-08 17:23:00,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919191915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:00,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:00,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:23:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827096839] [2025-03-08 17:23:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:00,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:23:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:00,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:23:00,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:23:00,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-08 17:23:00,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 160 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) [2025-03-08 17:23:00,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:00,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-08 17:23:00,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:01,126 INFO L124 PetriNetUnfolderBase]: 8815/12265 cut-off events. [2025-03-08 17:23:01,127 INFO L125 PetriNetUnfolderBase]: For 1938/1938 co-relation queries the response was YES. [2025-03-08 17:23:01,150 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 61469 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. [2025-03-08 17:23:01,172 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 75 selfloop transitions, 3 changer transitions 32/115 dead transitions. [2025-03-08 17:23:01,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 115 transitions, 563 flow [2025-03-08 17:23:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:23:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:23:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2025-03-08 17:23:01,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-08 17:23:01,174 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 160 flow. Second operand 6 states and 141 transitions. [2025-03-08 17:23:01,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 115 transitions, 563 flow [2025-03-08 17:23:01,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 547 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-08 17:23:01,179 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 162 flow [2025-03-08 17:23:01,179 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} [2025-03-08 17:23:01,179 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places. [2025-03-08 17:23:01,179 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 162 flow [2025-03-08 17:23:01,180 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) [2025-03-08 17:23:01,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:01,180 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] [2025-03-08 17:23:01,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 17:23:01,180 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)] === [2025-03-08 17:23:01,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 345152518, now seen corresponding path program 3 times [2025-03-08 17:23:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628044959] [2025-03-08 17:23:01,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 17:23:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:01,191 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 36 statements into 1 equivalence classes. [2025-03-08 17:23:01,199 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 17:23:01,200 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-08 17:23:01,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:01,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:01,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628044959] [2025-03-08 17:23:01,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628044959] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:01,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:01,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 17:23:01,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91860127] [2025-03-08 17:23:01,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:01,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:23:01,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:01,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:23:01,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:23:01,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-08 17:23:01,351 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) [2025-03-08 17:23:01,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:01,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-08 17:23:01,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:01,866 INFO L124 PetriNetUnfolderBase]: 7173/10127 cut-off events. [2025-03-08 17:23:01,866 INFO L125 PetriNetUnfolderBase]: For 1932/1932 co-relation queries the response was YES. [2025-03-08 17:23:01,883 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 50593 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. [2025-03-08 17:23:01,903 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 59 selfloop transitions, 3 changer transitions 60/127 dead transitions. [2025-03-08 17:23:01,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 127 transitions, 637 flow [2025-03-08 17:23:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:23:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:23:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2025-03-08 17:23:01,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5425531914893617 [2025-03-08 17:23:01,905 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 162 flow. Second operand 6 states and 153 transitions. [2025-03-08 17:23:01,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 127 transitions, 637 flow [2025-03-08 17:23:01,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 127 transitions, 613 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-08 17:23:01,912 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 164 flow [2025-03-08 17:23:01,912 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} [2025-03-08 17:23:01,913 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2025-03-08 17:23:01,913 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 164 flow [2025-03-08 17:23:01,913 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) [2025-03-08 17:23:01,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:01,913 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] [2025-03-08 17:23:01,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 17:23:01,913 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)] === [2025-03-08 17:23:01,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:01,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1629292978, now seen corresponding path program 4 times [2025-03-08 17:23:01,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:01,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719420592] [2025-03-08 17:23:01,914 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 17:23:01,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:01,923 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 36 statements into 2 equivalence classes. [2025-03-08 17:23:01,931 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 17:23:01,932 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-08 17:23:01,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:02,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:02,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719420592] [2025-03-08 17:23:02,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719420592] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:02,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:02,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 17:23:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747818721] [2025-03-08 17:23:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:02,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:23:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:02,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:23:02,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 17:23:02,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-08 17:23:02,069 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) [2025-03-08 17:23:02,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:02,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-08 17:23:02,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:02,272 INFO L124 PetriNetUnfolderBase]: 2865/4091 cut-off events. [2025-03-08 17:23:02,273 INFO L125 PetriNetUnfolderBase]: For 730/732 co-relation queries the response was YES. [2025-03-08 17:23:02,278 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 16554 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. [2025-03-08 17:23:02,281 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2025-03-08 17:23:02,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 74 transitions, 364 flow [2025-03-08 17:23:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:23:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:23:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2025-03-08 17:23:02,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40070921985815605 [2025-03-08 17:23:02,282 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 164 flow. Second operand 6 states and 113 transitions. [2025-03-08 17:23:02,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 74 transitions, 364 flow [2025-03-08 17:23:02,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 74 transitions, 354 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-03-08 17:23:02,285 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2025-03-08 17:23:02,285 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} [2025-03-08 17:23:02,288 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-03-08 17:23:02,288 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2025-03-08 17:23:02,288 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) [2025-03-08 17:23:02,290 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-03-08 17:23:02,291 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-03-08 17:23:02,291 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-08 17:23:02,291 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-08 17:23:02,291 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-08 17:23:02,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 17:23:02,292 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2025-03-08 17:23:02,297 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 17:23:02,299 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 17:23:02,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:23:02 BasicIcfg [2025-03-08 17:23:02,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 17:23:02,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 17:23:02,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 17:23:02,305 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 17:23:02,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:52" (3/4) ... [2025-03-08 17:23:02,307 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 17:23:02,309 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-08 17:23:02,309 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-08 17:23:02,309 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-08 17:23:02,309 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-03-08 17:23:02,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-03-08 17:23:02,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-08 17:23:02,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-08 17:23:02,312 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 17:23:02,360 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 17:23:02,360 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 17:23:02,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 17:23:02,361 INFO L158 Benchmark]: Toolchain (without parser) took 11101.40ms. Allocated memory was 167.8MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 121.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 393.7MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,362 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:23:02,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.93ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 100.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.77ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,364 INFO L158 Benchmark]: Boogie Preprocessor took 30.98ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 97.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:23:02,365 INFO L158 Benchmark]: IcfgBuilder took 390.88ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 75.4MB in the end (delta: 21.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,365 INFO L158 Benchmark]: TraceAbstraction took 10193.59ms. Allocated memory was 167.8MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 74.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 335.0MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,366 INFO L158 Benchmark]: Witness Printer took 55.89ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 17:23:02,367 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.93ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 100.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.77ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.98ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 97.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 390.88ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 75.4MB in the end (delta: 21.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10193.59ms. Allocated memory was 167.8MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 74.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 335.0MB. Max. memory is 16.1GB. * Witness Printer took 55.89ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. 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, 75 edges, 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: 10.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 787 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 777 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1245 IncrementalHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 0 mSDtfsCounter, 1245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 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, 1.4s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 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! [2025-03-08 17:23:02,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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