./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:00:29,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:00:29,061 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:00:29,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:00:29,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:00:29,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:00:29,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:00:29,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:00:29,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:00:29,098 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:00:29,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:00:29,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:00:29,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:00:29,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:00:29,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:00:29,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:00:29,101 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:00:29,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:00:29,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:00:29,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:00:29,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:00:29,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:00:29,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:00:29,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:00:29,103 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2025-02-08 01:00:29,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:00:29,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:00:29,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:00:29,349 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:00:29,349 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:00:29,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2025-02-08 01:00:30,621 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66f63ebe1/47d491624e7b41249ce7f9446e9945f4/FLAG37a67695e [2025-02-08 01:00:30,880 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:00:30,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2025-02-08 01:00:30,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66f63ebe1/47d491624e7b41249ce7f9446e9945f4/FLAG37a67695e [2025-02-08 01:00:30,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66f63ebe1/47d491624e7b41249ce7f9446e9945f4 [2025-02-08 01:00:30,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:00:30,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:00:30,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:00:30,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:00:30,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:00:30,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:00:30" (1/1) ... [2025-02-08 01:00:30,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eea268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:30, skipping insertion in model container [2025-02-08 01:00:30,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:00:30" (1/1) ... [2025-02-08 01:00:30,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:00:31,073 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2025-02-08 01:00:31,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:00:31,225 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:00:31,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2025-02-08 01:00:31,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:00:31,297 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:00:31,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31 WrapperNode [2025-02-08 01:00:31,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:00:31,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:00:31,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:00:31,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:00:31,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,335 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2025-02-08 01:00:31,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:00:31,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:00:31,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:00:31,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:00:31,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,347 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,365 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 01:00:31,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,370 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:00:31,375 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:00:31,375 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:00:31,375 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:00:31,376 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (1/1) ... [2025-02-08 01:00:31,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:00:31,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:00:31,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:00:31,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:00:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:00:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:00:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:00:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:00:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:00:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 01:00:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:00:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:00:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:00:31,423 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:00:31,503 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:00:31,504 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:00:31,781 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:00:31,781 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:00:31,963 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:00:31,964 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:00:31,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:00:31 BoogieIcfgContainer [2025-02-08 01:00:31,964 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:00:31,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:00:31,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:00:31,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:00:31,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:00:30" (1/3) ... [2025-02-08 01:00:31,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600761be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:00:31, skipping insertion in model container [2025-02-08 01:00:31,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:00:31" (2/3) ... [2025-02-08 01:00:31,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600761be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:00:31, skipping insertion in model container [2025-02-08 01:00:31,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:00:31" (3/3) ... [2025-02-08 01:00:31,971 INFO L128 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2025-02-08 01:00:31,983 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:00:31,986 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix029_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 01:00:31,986 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:00:32,040 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:00:32,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2025-02-08 01:00:32,087 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2025-02-08 01:00:32,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:00:32,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2025-02-08 01:00:32,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2025-02-08 01:00:32,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2025-02-08 01:00:32,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:00:32,110 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;@4f2a50fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:00:32,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 01:00:32,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:00:32,115 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-02-08 01:00:32,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:00:32,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:00:32,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:00:32,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:00:32,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:00:32,120 INFO L85 PathProgramCache]: Analyzing trace with hash -443609418, now seen corresponding path program 1 times [2025-02-08 01:00:32,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:00:32,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167657920] [2025-02-08 01:00:32,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:00:32,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:00:32,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 01:00:32,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 01:00:32,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:00:32,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:00:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:00:32,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:00:32,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167657920] [2025-02-08 01:00:32,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167657920] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:00:32,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:00:32,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 01:00:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703016603] [2025-02-08 01:00:32,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:00:32,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:00:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:00:32,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:00:32,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:00:32,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 49 [2025-02-08 01:00:32,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:32,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:00:32,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 49 [2025-02-08 01:00:32,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:00:35,962 INFO L124 PetriNetUnfolderBase]: 40307/53592 cut-off events. [2025-02-08 01:00:35,962 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2025-02-08 01:00:36,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107036 conditions, 53592 events. 40307/53592 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 1597. Compared 318157 event pairs, 5087 based on Foata normal form. 1476/54803 useless extension candidates. Maximal degree in co-relation 107024. Up to 45661 conditions per place. [2025-02-08 01:00:36,238 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 57 selfloop transitions, 2 changer transitions 2/68 dead transitions. [2025-02-08 01:00:36,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 273 flow [2025-02-08 01:00:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:00:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:00:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2025-02-08 01:00:36,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2025-02-08 01:00:36,253 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2025-02-08 01:00:36,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 273 flow [2025-02-08 01:00:36,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 68 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:00:36,263 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2025-02-08 01:00:36,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-02-08 01:00:36,267 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2025-02-08 01:00:36,269 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2025-02-08 01:00:36,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:36,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:00:36,269 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:00:36,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:00:36,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:00:36,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:00:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash -107955374, now seen corresponding path program 1 times [2025-02-08 01:00:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:00:36,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941376313] [2025-02-08 01:00:36,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:00:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:00:36,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:00:36,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:00:36,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:00:36,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:00:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:00:37,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:00:37,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941376313] [2025-02-08 01:00:37,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941376313] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:00:37,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:00:37,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:00:37,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577812350] [2025-02-08 01:00:37,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:00:37,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:00:37,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:00:37,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:00:37,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:00:37,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-02-08 01:00:37,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:37,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:00:37,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-02-08 01:00:37,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:00:43,052 INFO L124 PetriNetUnfolderBase]: 67769/90519 cut-off events. [2025-02-08 01:00:43,053 INFO L125 PetriNetUnfolderBase]: For 2952/2952 co-relation queries the response was YES. [2025-02-08 01:00:43,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183093 conditions, 90519 events. 67769/90519 cut-off events. For 2952/2952 co-relation queries the response was YES. Maximal size of possible extension queue 2694. Compared 557548 event pairs, 8819 based on Foata normal form. 0/88842 useless extension candidates. Maximal degree in co-relation 183083. Up to 51961 conditions per place. [2025-02-08 01:00:43,478 INFO L140 encePairwiseOnDemand]: 35/49 looper letters, 68 selfloop transitions, 12 changer transitions 149/234 dead transitions. [2025-02-08 01:00:43,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 234 transitions, 954 flow [2025-02-08 01:00:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 01:00:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 01:00:43,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 340 transitions. [2025-02-08 01:00:43,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5782312925170068 [2025-02-08 01:00:43,486 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 12 states and 340 transitions. [2025-02-08 01:00:43,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 234 transitions, 954 flow [2025-02-08 01:00:43,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 234 transitions, 938 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 01:00:43,500 INFO L231 Difference]: Finished difference. Result has 71 places, 51 transitions, 215 flow [2025-02-08 01:00:43,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=215, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2025-02-08 01:00:43,501 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2025-02-08 01:00:43,501 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 215 flow [2025-02-08 01:00:43,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:43,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:00:43,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:00:43,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:00:43,502 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:00:43,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:00:43,502 INFO L85 PathProgramCache]: Analyzing trace with hash 589082419, now seen corresponding path program 1 times [2025-02-08 01:00:43,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:00:43,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466662033] [2025-02-08 01:00:43,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:00:43,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:00:43,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:00:43,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:00:43,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:00:43,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:00:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:00:43,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:00:43,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466662033] [2025-02-08 01:00:43,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466662033] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:00:43,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:00:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:00:43,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134286317] [2025-02-08 01:00:43,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:00:43,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:00:43,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:00:43,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:00:43,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:00:43,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-02-08 01:00:43,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:43,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:00:43,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-02-08 01:00:43,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:00:48,413 INFO L124 PetriNetUnfolderBase]: 51551/69315 cut-off events. [2025-02-08 01:00:48,413 INFO L125 PetriNetUnfolderBase]: For 87332/87370 co-relation queries the response was YES. [2025-02-08 01:00:48,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219536 conditions, 69315 events. 51551/69315 cut-off events. For 87332/87370 co-relation queries the response was YES. Maximal size of possible extension queue 1991. Compared 414602 event pairs, 11147 based on Foata normal form. 1656/70950 useless extension candidates. Maximal degree in co-relation 219517. Up to 43405 conditions per place. [2025-02-08 01:00:48,874 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 66 selfloop transitions, 3 changer transitions 93/167 dead transitions. [2025-02-08 01:00:48,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 167 transitions, 1042 flow [2025-02-08 01:00:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:00:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:00:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2025-02-08 01:00:48,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5685131195335277 [2025-02-08 01:00:48,878 INFO L175 Difference]: Start difference. First operand has 71 places, 51 transitions, 215 flow. Second operand 7 states and 195 transitions. [2025-02-08 01:00:48,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 167 transitions, 1042 flow [2025-02-08 01:00:50,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 167 transitions, 972 flow, removed 35 selfloop flow, removed 5 redundant places. [2025-02-08 01:00:50,878 INFO L231 Difference]: Finished difference. Result has 68 places, 51 transitions, 214 flow [2025-02-08 01:00:50,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=214, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2025-02-08 01:00:50,879 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 11 predicate places. [2025-02-08 01:00:50,879 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 214 flow [2025-02-08 01:00:50,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:50,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:00:50,880 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:00:50,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:00:50,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:00:50,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:00:50,881 INFO L85 PathProgramCache]: Analyzing trace with hash -27247242, now seen corresponding path program 1 times [2025-02-08 01:00:50,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:00:50,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022931433] [2025-02-08 01:00:50,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:00:50,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:00:50,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 01:00:50,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 01:00:50,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:00:50,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:00:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:00:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:00:51,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022931433] [2025-02-08 01:00:51,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022931433] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:00:51,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:00:51,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:00:51,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752083784] [2025-02-08 01:00:51,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:00:51,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:00:51,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:00:51,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:00:51,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:00:51,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-02-08 01:00:51,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:51,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:00:51,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-02-08 01:00:51,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:00:55,968 INFO L124 PetriNetUnfolderBase]: 48191/64891 cut-off events. [2025-02-08 01:00:55,968 INFO L125 PetriNetUnfolderBase]: For 70683/70683 co-relation queries the response was YES. [2025-02-08 01:00:56,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195660 conditions, 64891 events. 48191/64891 cut-off events. For 70683/70683 co-relation queries the response was YES. Maximal size of possible extension queue 1801. Compared 385761 event pairs, 12543 based on Foata normal form. 1254/66138 useless extension candidates. Maximal degree in co-relation 195639. Up to 52639 conditions per place. [2025-02-08 01:00:56,439 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 65 selfloop transitions, 3 changer transitions 75/148 dead transitions. [2025-02-08 01:00:56,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 148 transitions, 880 flow [2025-02-08 01:00:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:00:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:00:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2025-02-08 01:00:56,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5481049562682215 [2025-02-08 01:00:56,441 INFO L175 Difference]: Start difference. First operand has 68 places, 51 transitions, 214 flow. Second operand 7 states and 188 transitions. [2025-02-08 01:00:56,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 148 transitions, 880 flow [2025-02-08 01:00:58,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 148 transitions, 848 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-02-08 01:00:58,507 INFO L231 Difference]: Finished difference. Result has 68 places, 53 transitions, 230 flow [2025-02-08 01:00:58,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=230, PETRI_PLACES=68, PETRI_TRANSITIONS=53} [2025-02-08 01:00:58,508 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 11 predicate places. [2025-02-08 01:00:58,508 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 53 transitions, 230 flow [2025-02-08 01:00:58,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:58,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:00:58,509 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:00:58,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:00:58,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:00:58,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:00:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1054311486, now seen corresponding path program 1 times [2025-02-08 01:00:58,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:00:58,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656806429] [2025-02-08 01:00:58,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:00:58,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:00:58,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:00:58,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:00:58,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:00:58,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:00:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:00:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:00:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656806429] [2025-02-08 01:00:58,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656806429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:00:58,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:00:58,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:00:58,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932564221] [2025-02-08 01:00:58,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:00:58,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:00:58,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:00:58,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:00:58,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:00:58,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 49 [2025-02-08 01:00:58,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 53 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:00:58,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:00:58,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 49 [2025-02-08 01:00:58,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:01:02,090 INFO L124 PetriNetUnfolderBase]: 36153/50061 cut-off events. [2025-02-08 01:01:02,090 INFO L125 PetriNetUnfolderBase]: For 74102/74120 co-relation queries the response was YES. [2025-02-08 01:01:02,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156607 conditions, 50061 events. 36153/50061 cut-off events. For 74102/74120 co-relation queries the response was YES. Maximal size of possible extension queue 1461. Compared 311635 event pairs, 4366 based on Foata normal form. 1760/51812 useless extension candidates. Maximal degree in co-relation 156586. Up to 26149 conditions per place. [2025-02-08 01:01:02,413 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 108 selfloop transitions, 6 changer transitions 1/121 dead transitions. [2025-02-08 01:01:02,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 121 transitions, 776 flow [2025-02-08 01:01:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:01:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:01:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2025-02-08 01:01:02,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6479591836734694 [2025-02-08 01:01:02,417 INFO L175 Difference]: Start difference. First operand has 68 places, 53 transitions, 230 flow. Second operand 4 states and 127 transitions. [2025-02-08 01:01:02,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 121 transitions, 776 flow [2025-02-08 01:01:02,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 121 transitions, 765 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 01:01:02,718 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 265 flow [2025-02-08 01:01:02,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2025-02-08 01:01:02,719 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2025-02-08 01:01:02,719 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 265 flow [2025-02-08 01:01:02,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:01:02,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:02,719 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] [2025-02-08 01:01:02,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:01:02,719 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:02,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 852283608, now seen corresponding path program 1 times [2025-02-08 01:01:02,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:02,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677472862] [2025-02-08 01:01:02,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:02,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:02,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:01:02,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:01:02,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:02,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677472862] [2025-02-08 01:01:03,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677472862] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:03,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:03,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:01:03,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352510949] [2025-02-08 01:01:03,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:03,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:01:03,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:03,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:01:03,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:01:03,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-02-08 01:01:03,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 265 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:01:03,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:03,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-02-08 01:01:03,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:01:07,858 INFO L124 PetriNetUnfolderBase]: 36349/49429 cut-off events. [2025-02-08 01:01:07,859 INFO L125 PetriNetUnfolderBase]: For 68856/68856 co-relation queries the response was YES. [2025-02-08 01:01:08,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164249 conditions, 49429 events. 36349/49429 cut-off events. For 68856/68856 co-relation queries the response was YES. Maximal size of possible extension queue 1290. Compared 287912 event pairs, 5913 based on Foata normal form. 662/50084 useless extension candidates. Maximal degree in co-relation 164227. Up to 40051 conditions per place. [2025-02-08 01:01:08,358 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 93 selfloop transitions, 4 changer transitions 71/173 dead transitions. [2025-02-08 01:01:08,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 173 transitions, 1145 flow [2025-02-08 01:01:08,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:01:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:01:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2025-02-08 01:01:08,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433673469387755 [2025-02-08 01:01:08,359 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 265 flow. Second operand 8 states and 213 transitions. [2025-02-08 01:01:08,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 173 transitions, 1145 flow [2025-02-08 01:01:08,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 173 transitions, 1117 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 01:01:08,382 INFO L231 Difference]: Finished difference. Result has 76 places, 57 transitions, 274 flow [2025-02-08 01:01:08,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=274, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2025-02-08 01:01:08,385 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2025-02-08 01:01:08,385 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 57 transitions, 274 flow [2025-02-08 01:01:08,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:01:08,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:08,385 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] [2025-02-08 01:01:08,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:01:08,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:08,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash 273847820, now seen corresponding path program 1 times [2025-02-08 01:01:08,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:08,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525779512] [2025-02-08 01:01:08,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:08,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:01:08,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:01:08,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:08,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:08,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:08,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525779512] [2025-02-08 01:01:08,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525779512] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:08,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:08,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:01:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262230122] [2025-02-08 01:01:08,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:08,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:01:08,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:08,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:01:08,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:01:08,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 49 [2025-02-08 01:01:08,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 57 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:01:08,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:08,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 49 [2025-02-08 01:01:08,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand