./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8ab0bd5 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/libvsync/bounded_mpmc_check_full.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 f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 21:53:43,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 21:53:43,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-13 21:53:43,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 21:53:43,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 21:53:43,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 21:53:43,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 21:53:43,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 21:53:43,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-13 21:53:43,544 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-13 21:53:43,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 21:53:43,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 21:53:43,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 21:53:43,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 21:53:43,544 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 21:53:43,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 21:53:43,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 21:53:43,547 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 21:53:43,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:53:43,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 21:53:43,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 21:53:43,548 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 -> f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe [2025-03-13 21:53:43,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 21:53:43,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 21:53:43,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 21:53:43,795 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 21:53:43,795 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 21:53:43,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2025-03-13 21:53:44,949 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6471641c6/a7717bd65f794bd18fa40f5ef7ab9521/FLAG95f8c3625 [2025-03-13 21:53:45,344 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 21:53:45,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2025-03-13 21:53:45,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6471641c6/a7717bd65f794bd18fa40f5ef7ab9521/FLAG95f8c3625 [2025-03-13 21:53:45,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6471641c6/a7717bd65f794bd18fa40f5ef7ab9521 [2025-03-13 21:53:45,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 21:53:45,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 21:53:45,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 21:53:45,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 21:53:45,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 21:53:45,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:53:45" (1/1) ... [2025-03-13 21:53:45,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670247f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:45, skipping insertion in model container [2025-03-13 21:53:45,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:53:45" (1/1) ... [2025-03-13 21:53:45,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 21:53:46,844 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/libvsync/bounded_mpmc_check_full.i[193617,193630] [2025-03-13 21:53:46,846 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/libvsync/bounded_mpmc_check_full.i[193693,193706] [2025-03-13 21:53:46,885 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/libvsync/bounded_mpmc_check_full.i[196266,196279] [2025-03-13 21:53:46,886 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/libvsync/bounded_mpmc_check_full.i[196373,196386] [2025-03-13 21:53:46,886 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/libvsync/bounded_mpmc_check_full.i[196444,196457] [2025-03-13 21:53:46,887 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/libvsync/bounded_mpmc_check_full.i[196555,196568] [2025-03-13 21:53:46,887 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/libvsync/bounded_mpmc_check_full.i[196668,196681] [2025-03-13 21:53:46,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:53:46,898 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 21:53:46,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2025-03-13 21:53:46,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2025-03-13 21:53:46,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2025-03-13 21:53:46,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2025-03-13 21:53:46,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2025-03-13 21:53:46,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2025-03-13 21:53:46,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2025-03-13 21:53:46,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2025-03-13 21:53:46,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2025-03-13 21:53:46,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2025-03-13 21:53:46,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2025-03-13 21:53:46,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2025-03-13 21:53:47,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2025-03-13 21:53:47,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2025-03-13 21:53:47,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2025-03-13 21:53:47,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2025-03-13 21:53:47,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2025-03-13 21:53:47,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2025-03-13 21:53:47,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2025-03-13 21:53:47,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2025-03-13 21:53:47,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2025-03-13 21:53:47,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2025-03-13 21:53:47,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2025-03-13 21:53:47,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2025-03-13 21:53:47,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2025-03-13 21:53:47,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2025-03-13 21:53:47,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2025-03-13 21:53:47,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2025-03-13 21:53:47,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2025-03-13 21:53:47,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2025-03-13 21:53:47,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2025-03-13 21:53:47,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2025-03-13 21:53:47,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2025-03-13 21:53:47,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2025-03-13 21:53:47,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2025-03-13 21:53:47,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2025-03-13 21:53:47,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2025-03-13 21:53:47,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2025-03-13 21:53:47,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2025-03-13 21:53:47,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2025-03-13 21:53:47,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2025-03-13 21:53:47,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2025-03-13 21:53:47,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2025-03-13 21:53:47,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2025-03-13 21:53:47,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2025-03-13 21:53:47,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2025-03-13 21:53:47,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2025-03-13 21:53:47,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2025-03-13 21:53:47,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2025-03-13 21:53:47,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2025-03-13 21:53:47,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2025-03-13 21:53:47,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2025-03-13 21:53:47,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2025-03-13 21:53:47,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2025-03-13 21:53:47,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2025-03-13 21:53:47,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2025-03-13 21:53:47,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2025-03-13 21:53:47,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2025-03-13 21:53:47,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2025-03-13 21:53:47,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2025-03-13 21:53:47,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2025-03-13 21:53:47,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2025-03-13 21:53:47,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2025-03-13 21:53:47,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2025-03-13 21:53:47,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2025-03-13 21:53:47,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2025-03-13 21:53:47,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2025-03-13 21:53:47,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2025-03-13 21:53:47,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2025-03-13 21:53:47,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2025-03-13 21:53:47,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2025-03-13 21:53:47,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2025-03-13 21:53:47,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2025-03-13 21:53:47,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2025-03-13 21:53:47,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2025-03-13 21:53:47,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2025-03-13 21:53:47,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2025-03-13 21:53:47,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2025-03-13 21:53:47,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2025-03-13 21:53:47,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2025-03-13 21:53:47,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2025-03-13 21:53:47,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2025-03-13 21:53:47,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2025-03-13 21:53:47,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2025-03-13 21:53:47,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2025-03-13 21:53:47,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2025-03-13 21:53:47,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2025-03-13 21:53:47,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2025-03-13 21:53:47,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2025-03-13 21:53:47,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2025-03-13 21:53:47,064 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/libvsync/bounded_mpmc_check_full.i[193617,193630] [2025-03-13 21:53:47,065 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/libvsync/bounded_mpmc_check_full.i[193693,193706] [2025-03-13 21:53:47,073 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/libvsync/bounded_mpmc_check_full.i[196266,196279] [2025-03-13 21:53:47,073 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/libvsync/bounded_mpmc_check_full.i[196373,196386] [2025-03-13 21:53:47,074 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/libvsync/bounded_mpmc_check_full.i[196444,196457] [2025-03-13 21:53:47,074 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/libvsync/bounded_mpmc_check_full.i[196555,196568] [2025-03-13 21:53:47,074 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/libvsync/bounded_mpmc_check_full.i[196668,196681] [2025-03-13 21:53:47,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:53:47,236 INFO L204 MainTranslator]: Completed translation [2025-03-13 21:53:47,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47 WrapperNode [2025-03-13 21:53:47,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 21:53:47,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 21:53:47,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 21:53:47,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 21:53:47,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,321 INFO L138 Inliner]: procedures = 914, calls = 950, calls flagged for inlining = 815, calls inlined = 57, statements flattened = 628 [2025-03-13 21:53:47,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 21:53:47,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 21:53:47,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 21:53:47,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 21:53:47,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,360 INFO L175 MemorySlicer]: Split 65 memory accesses to 5 slices as follows [2, 8, 9, 44, 2]. 68 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 4, 5, 6, 0]. The 20 writes are split as follows [0, 3, 2, 14, 1]. [2025-03-13 21:53:47,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,376 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 21:53:47,385 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 21:53:47,385 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 21:53:47,385 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 21:53:47,386 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (1/1) ... [2025-03-13 21:53:47,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:53:47,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:53:47,431 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) [2025-03-13 21:53:47,434 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 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 21:53:47,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-13 21:53:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-13 21:53:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-13 21:53:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-13 21:53:47,452 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 21:53:47,601 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 21:53:47,602 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 21:53:48,107 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2025-03-13 21:53:48,107 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483-9: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2025-03-13 21:53:48,107 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483-18: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6036-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6036: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438: havoc vatomic32_read_rlx_#t~ret116#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438-9: havoc vatomic32_read_rlx_#t~ret116#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6043: havoc main_~#r~0#1.base, main_~#r~0#1.offset; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6043-1: SUMMARY for call ULTIMATE.dealloc(main_~#r~0#1.base, main_~#r~0#1.offset); srcloc: null [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443: havoc vatomic32_read_acq_#t~ret117#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-9: havoc vatomic32_read_acq_#t~ret117#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-18: havoc vatomic32_read_acq_#t~ret117#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-27: havoc vatomic32_read_acq_#t~ret117#1; [2025-03-13 21:53:48,108 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2808: havoc vatomic32_await_eq_rlx_#t~ret172#1; [2025-03-13 21:53:48,213 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2025-03-13 21:53:48,214 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443: havoc vatomic32_read_acq_#t~ret117#1; [2025-03-13 21:53:48,214 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019: havoc ~#xbo~0#1.base, ~#xbo~0#1.offset; [2025-03-13 21:53:48,214 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019-1: SUMMARY for call ULTIMATE.dealloc(~#xbo~0#1.base, ~#xbo~0#1.offset); srcloc: null [2025-03-13 21:53:48,214 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438: havoc vatomic32_read_rlx_#t~ret116#1; [2025-03-13 21:53:48,215 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 21:53:48,215 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 21:53:48,216 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 21:53:48,684 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 21:53:48,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:53:48 BoogieIcfgContainer [2025-03-13 21:53:48,685 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 21:53:48,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 21:53:48,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 21:53:48,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 21:53:48,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 09:53:45" (1/3) ... [2025-03-13 21:53:48,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2dc9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:53:48, skipping insertion in model container [2025-03-13 21:53:48,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:53:47" (2/3) ... [2025-03-13 21:53:48,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2dc9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:53:48, skipping insertion in model container [2025-03-13 21:53:48,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:53:48" (3/3) ... [2025-03-13 21:53:48,693 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_full.i [2025-03-13 21:53:48,706 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 21:53:48,707 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_mpmc_check_full.i that has 2 procedures, 118 locations, 1 initial locations, 16 loop locations, and 7 error locations. [2025-03-13 21:53:48,708 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 21:53:48,781 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 21:53:48,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 172 transitions, 351 flow [2025-03-13 21:53:48,881 INFO L124 PetriNetUnfolderBase]: 96/294 cut-off events. [2025-03-13 21:53:48,883 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:53:48,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 294 events. 96/294 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 836 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 146. Up to 12 conditions per place. [2025-03-13 21:53:48,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 172 transitions, 351 flow [2025-03-13 21:53:48,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 172 transitions, 351 flow [2025-03-13 21:53:48,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:53:48,907 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;@699ffd3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:53:48,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-13 21:53:48,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:53:48,914 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2025-03-13 21:53:48,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:53:48,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:53:48,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-13 21:53:48,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:53:48,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:53:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1743798, now seen corresponding path program 1 times [2025-03-13 21:53:48,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:53:48,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447518467] [2025-03-13 21:53:48,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:53:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:53:48,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-13 21:53:48,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-13 21:53:48,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:48,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:53:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:53:49,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:53:49,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447518467] [2025-03-13 21:53:49,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447518467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:53:49,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:53:49,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:53:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539918454] [2025-03-13 21:53:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:53:49,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:53:49,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:53:49,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:53:49,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:53:49,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 172 [2025-03-13 21:53:49,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 172 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:49,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:53:49,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 172 [2025-03-13 21:53:49,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:53:49,643 INFO L124 PetriNetUnfolderBase]: 1229/2601 cut-off events. [2025-03-13 21:53:49,644 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:53:49,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4835 conditions, 2601 events. 1229/2601 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13652 event pairs, 864 based on Foata normal form. 387/2519 useless extension candidates. Maximal degree in co-relation 4647. Up to 2220 conditions per place. [2025-03-13 21:53:49,658 INFO L140 encePairwiseOnDemand]: 129/172 looper letters, 91 selfloop transitions, 2 changer transitions 5/129 dead transitions. [2025-03-13 21:53:49,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 129 transitions, 455 flow [2025-03-13 21:53:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:53:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:53:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2025-03-13 21:53:49,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46705426356589147 [2025-03-13 21:53:49,669 INFO L175 Difference]: Start difference. First operand has 121 places, 172 transitions, 351 flow. Second operand 3 states and 241 transitions. [2025-03-13 21:53:49,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 129 transitions, 455 flow [2025-03-13 21:53:49,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 455 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:53:49,676 INFO L231 Difference]: Finished difference. Result has 121 places, 124 transitions, 259 flow [2025-03-13 21:53:49,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=121, PETRI_TRANSITIONS=124} [2025-03-13 21:53:49,681 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, 0 predicate places. [2025-03-13 21:53:49,682 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 124 transitions, 259 flow [2025-03-13 21:53:49,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:49,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:53:49,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-13 21:53:49,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 21:53:49,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:53:49,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:53:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1675962557, now seen corresponding path program 1 times [2025-03-13 21:53:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:53:49,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378653572] [2025-03-13 21:53:49,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:53:49,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:53:49,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-13 21:53:49,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-13 21:53:49,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:49,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:53:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:53:49,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:53:49,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378653572] [2025-03-13 21:53:49,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378653572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:53:49,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:53:49,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:53:49,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329063264] [2025-03-13 21:53:49,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:53:49,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:53:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:53:49,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:53:49,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:53:49,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 172 [2025-03-13 21:53:49,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 124 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:49,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:53:49,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 172 [2025-03-13 21:53:49,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:53:50,161 INFO L124 PetriNetUnfolderBase]: 1189/2469 cut-off events. [2025-03-13 21:53:50,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:53:50,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 2469 events. 1189/2469 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12798 event pairs, 832 based on Foata normal form. 1/2010 useless extension candidates. Maximal degree in co-relation 4600. Up to 2144 conditions per place. [2025-03-13 21:53:50,174 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 91 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2025-03-13 21:53:50,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 122 transitions, 441 flow [2025-03-13 21:53:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:53:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:53:50,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2025-03-13 21:53:50,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3856589147286822 [2025-03-13 21:53:50,177 INFO L175 Difference]: Start difference. First operand has 121 places, 124 transitions, 259 flow. Second operand 3 states and 199 transitions. [2025-03-13 21:53:50,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 122 transitions, 441 flow [2025-03-13 21:53:50,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 122 transitions, 437 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 21:53:50,179 INFO L231 Difference]: Finished difference. Result has 114 places, 122 transitions, 255 flow [2025-03-13 21:53:50,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=114, PETRI_TRANSITIONS=122} [2025-03-13 21:53:50,181 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, -7 predicate places. [2025-03-13 21:53:50,181 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 122 transitions, 255 flow [2025-03-13 21:53:50,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:50,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:53:50,182 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:53:50,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 21:53:50,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:53:50,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:53:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash -97480751, now seen corresponding path program 1 times [2025-03-13 21:53:50,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:53:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214812431] [2025-03-13 21:53:50,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:53:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:53:50,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-13 21:53:50,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-13 21:53:50,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:50,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:53:50,280 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 21:53:50,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-13 21:53:50,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-13 21:53:50,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:50,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:53:50,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 21:53:50,386 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 21:53:50,386 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2025-03-13 21:53:50,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2025-03-13 21:53:50,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2025-03-13 21:53:50,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 21:53:50,389 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 21:53:50,391 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 21:53:50,392 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 21:53:50,463 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-13 21:53:50,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 195 transitions, 406 flow [2025-03-13 21:53:50,499 INFO L124 PetriNetUnfolderBase]: 187/564 cut-off events. [2025-03-13 21:53:50,500 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-13 21:53:50,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 564 events. 187/564 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2232 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 296. Up to 24 conditions per place. [2025-03-13 21:53:50,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 195 transitions, 406 flow [2025-03-13 21:53:50,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 195 transitions, 406 flow [2025-03-13 21:53:50,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:53:50,508 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;@699ffd3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:53:50,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-13 21:53:50,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:53:50,510 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2025-03-13 21:53:50,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:53:50,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:53:50,510 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-13 21:53:50,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:53:50,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:53:50,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1937433, now seen corresponding path program 1 times [2025-03-13 21:53:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:53:50,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810696815] [2025-03-13 21:53:50,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:53:50,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:53:50,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-13 21:53:50,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-13 21:53:50,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:50,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:53:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:53:50,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:53:50,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810696815] [2025-03-13 21:53:50,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810696815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:53:50,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:53:50,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:53:50,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978973337] [2025-03-13 21:53:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:53:50,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:53:50,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:53:50,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:53:50,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:53:50,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 195 [2025-03-13 21:53:50,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 195 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:50,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:53:50,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 195 [2025-03-13 21:53:50,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:53:55,433 INFO L124 PetriNetUnfolderBase]: 41903/64897 cut-off events. [2025-03-13 21:53:55,433 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-03-13 21:53:55,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124705 conditions, 64897 events. 41903/64897 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 436550 event pairs, 31376 based on Foata normal form. 6908/59727 useless extension candidates. Maximal degree in co-relation 95828. Up to 59707 conditions per place. [2025-03-13 21:53:55,787 INFO L140 encePairwiseOnDemand]: 151/195 looper letters, 113 selfloop transitions, 2 changer transitions 5/151 dead transitions. [2025-03-13 21:53:55,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 151 transitions, 552 flow [2025-03-13 21:53:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:53:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:53:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2025-03-13 21:53:55,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4512820512820513 [2025-03-13 21:53:55,790 INFO L175 Difference]: Start difference. First operand has 140 places, 195 transitions, 406 flow. Second operand 3 states and 264 transitions. [2025-03-13 21:53:55,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 151 transitions, 552 flow [2025-03-13 21:53:55,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 151 transitions, 552 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:53:55,795 INFO L231 Difference]: Finished difference. Result has 140 places, 146 transitions, 312 flow [2025-03-13 21:53:55,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=140, PETRI_TRANSITIONS=146} [2025-03-13 21:53:55,795 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2025-03-13 21:53:55,796 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 146 transitions, 312 flow [2025-03-13 21:53:55,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:55,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:53:55,796 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-13 21:53:55,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 21:53:55,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:53:55,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:53:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1862052032, now seen corresponding path program 1 times [2025-03-13 21:53:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:53:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404413145] [2025-03-13 21:53:55,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:53:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:53:55,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-13 21:53:55,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-13 21:53:55,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:53:55,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:53:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:53:55,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:53:55,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404413145] [2025-03-13 21:53:55,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404413145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:53:55,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:53:55,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:53:55,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620263065] [2025-03-13 21:53:55,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:53:55,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:53:55,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:53:55,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:53:55,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:53:55,862 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 195 [2025-03-13 21:53:55,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 146 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:53:55,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:53:55,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 195 [2025-03-13 21:53:55,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:53:59,877 INFO L124 PetriNetUnfolderBase]: 40463/61835 cut-off events. [2025-03-13 21:53:59,878 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-03-13 21:53:59,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119558 conditions, 61835 events. 40463/61835 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 406776 event pairs, 30224 based on Foata normal form. 1/50047 useless extension candidates. Maximal degree in co-relation 119527. Up to 57619 conditions per place. [2025-03-13 21:54:00,123 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 113 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2025-03-13 21:54:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 144 transitions, 538 flow [2025-03-13 21:54:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:54:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:54:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2025-03-13 21:54:00,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2025-03-13 21:54:00,126 INFO L175 Difference]: Start difference. First operand has 140 places, 146 transitions, 312 flow. Second operand 3 states and 221 transitions. [2025-03-13 21:54:00,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 144 transitions, 538 flow [2025-03-13 21:54:00,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 144 transitions, 534 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 21:54:00,132 INFO L231 Difference]: Finished difference. Result has 133 places, 144 transitions, 308 flow [2025-03-13 21:54:00,132 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=133, PETRI_TRANSITIONS=144} [2025-03-13 21:54:00,132 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, -7 predicate places. [2025-03-13 21:54:00,132 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 144 transitions, 308 flow [2025-03-13 21:54:00,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2025-03-13 21:54:00,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:00,133 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:54:00,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 21:54:00,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:00,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1837544686, now seen corresponding path program 1 times [2025-03-13 21:54:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457579057] [2025-03-13 21:54:00,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:00,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-13 21:54:00,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-13 21:54:00,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:00,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:00,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:00,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457579057] [2025-03-13 21:54:00,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457579057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:00,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:00,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 21:54:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275807315] [2025-03-13 21:54:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:00,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 21:54:00,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:00,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 21:54:00,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-13 21:54:00,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:00,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 144 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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) [2025-03-13 21:54:00,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:00,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:00,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:04,691 INFO L124 PetriNetUnfolderBase]: 39765/64420 cut-off events. [2025-03-13 21:54:04,692 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2025-03-13 21:54:04,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121156 conditions, 64420 events. 39765/64420 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 475553 event pairs, 1 based on Foata normal form. 0/52392 useless extension candidates. Maximal degree in co-relation 121125. Up to 54878 conditions per place. [2025-03-13 21:54:05,106 INFO L140 encePairwiseOnDemand]: 191/195 looper letters, 213 selfloop transitions, 4 changer transitions 0/245 dead transitions. [2025-03-13 21:54:05,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 245 transitions, 942 flow [2025-03-13 21:54:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-13 21:54:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-13 21:54:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2025-03-13 21:54:05,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2025-03-13 21:54:05,109 INFO L175 Difference]: Start difference. First operand has 133 places, 144 transitions, 308 flow. Second operand 5 states and 400 transitions. [2025-03-13 21:54:05,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 245 transitions, 942 flow [2025-03-13 21:54:05,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 245 transitions, 934 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-13 21:54:05,115 INFO L231 Difference]: Finished difference. Result has 133 places, 144 transitions, 310 flow [2025-03-13 21:54:05,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=133, PETRI_TRANSITIONS=144} [2025-03-13 21:54:05,116 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, -7 predicate places. [2025-03-13 21:54:05,116 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 144 transitions, 310 flow [2025-03-13 21:54:05,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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) [2025-03-13 21:54:05,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:05,116 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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] [2025-03-13 21:54:05,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 21:54:05,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:05,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1227521357, now seen corresponding path program 1 times [2025-03-13 21:54:05,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:05,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525047503] [2025-03-13 21:54:05,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:05,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:05,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-13 21:54:05,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-13 21:54:05,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:05,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:05,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525047503] [2025-03-13 21:54:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525047503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:05,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:05,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 21:54:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628976802] [2025-03-13 21:54:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:05,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:54:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:05,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:54:05,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:54:05,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:05,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 144 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2025-03-13 21:54:05,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:05,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:05,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:06,137 INFO L124 PetriNetUnfolderBase]: 4813/8660 cut-off events. [2025-03-13 21:54:06,137 INFO L125 PetriNetUnfolderBase]: For 1207/1207 co-relation queries the response was YES. [2025-03-13 21:54:06,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 8660 events. 4813/8660 cut-off events. For 1207/1207 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 51741 event pairs, 2448 based on Foata normal form. 0/7206 useless extension candidates. Maximal degree in co-relation 10416. Up to 5805 conditions per place. [2025-03-13 21:54:06,164 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 158 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2025-03-13 21:54:06,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 188 transitions, 722 flow [2025-03-13 21:54:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:54:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:54:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2025-03-13 21:54:06,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4581196581196581 [2025-03-13 21:54:06,166 INFO L175 Difference]: Start difference. First operand has 133 places, 144 transitions, 310 flow. Second operand 3 states and 268 transitions. [2025-03-13 21:54:06,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 188 transitions, 722 flow [2025-03-13 21:54:06,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 188 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:06,170 INFO L231 Difference]: Finished difference. Result has 135 places, 145 transitions, 320 flow [2025-03-13 21:54:06,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=320, PETRI_PLACES=135, PETRI_TRANSITIONS=145} [2025-03-13 21:54:06,171 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, -5 predicate places. [2025-03-13 21:54:06,171 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 145 transitions, 320 flow [2025-03-13 21:54:06,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2025-03-13 21:54:06,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:06,172 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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] [2025-03-13 21:54:06,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 21:54:06,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:06,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1385316587, now seen corresponding path program 1 times [2025-03-13 21:54:06,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:06,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956697612] [2025-03-13 21:54:06,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:06,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:06,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-13 21:54:06,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-13 21:54:06,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:06,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:06,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956697612] [2025-03-13 21:54:06,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956697612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:06,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:06,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 21:54:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539360611] [2025-03-13 21:54:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:06,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:54:06,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:06,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:54:06,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:54:06,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:06,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 145 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2025-03-13 21:54:06,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:06,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:06,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:07,739 INFO L124 PetriNetUnfolderBase]: 8074/13715 cut-off events. [2025-03-13 21:54:07,739 INFO L125 PetriNetUnfolderBase]: For 5089/5089 co-relation queries the response was YES. [2025-03-13 21:54:07,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28559 conditions, 13715 events. 8074/13715 cut-off events. For 5089/5089 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 82054 event pairs, 3879 based on Foata normal form. 0/11569 useless extension candidates. Maximal degree in co-relation 13592. Up to 7817 conditions per place. [2025-03-13 21:54:07,788 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 217 selfloop transitions, 2 changer transitions 0/247 dead transitions. [2025-03-13 21:54:07,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 247 transitions, 983 flow [2025-03-13 21:54:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:54:07,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:54:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2025-03-13 21:54:07,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-03-13 21:54:07,789 INFO L175 Difference]: Start difference. First operand has 135 places, 145 transitions, 320 flow. Second operand 3 states and 325 transitions. [2025-03-13 21:54:07,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 247 transitions, 983 flow [2025-03-13 21:54:07,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 247 transitions, 979 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:07,794 INFO L231 Difference]: Finished difference. Result has 137 places, 146 transitions, 330 flow [2025-03-13 21:54:07,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=137, PETRI_TRANSITIONS=146} [2025-03-13 21:54:07,795 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, -3 predicate places. [2025-03-13 21:54:07,795 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 146 transitions, 330 flow [2025-03-13 21:54:07,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2025-03-13 21:54:07,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:07,795 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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] [2025-03-13 21:54:07,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 21:54:07,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:07,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1010737460, now seen corresponding path program 1 times [2025-03-13 21:54:07,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165113801] [2025-03-13 21:54:07,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:07,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:07,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-13 21:54:07,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-13 21:54:07,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:07,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:07,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165113801] [2025-03-13 21:54:07,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165113801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:07,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:07,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 21:54:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311550862] [2025-03-13 21:54:07,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:07,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:54:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:07,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:54:07,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:54:07,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:07,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 146 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2025-03-13 21:54:07,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:07,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:07,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:09,383 INFO L124 PetriNetUnfolderBase]: 13216/21938 cut-off events. [2025-03-13 21:54:09,383 INFO L125 PetriNetUnfolderBase]: For 7418/7418 co-relation queries the response was YES. [2025-03-13 21:54:09,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46956 conditions, 21938 events. 13216/21938 cut-off events. For 7418/7418 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 134334 event pairs, 6414 based on Foata normal form. 0/18816 useless extension candidates. Maximal degree in co-relation 35684. Up to 12908 conditions per place. [2025-03-13 21:54:09,459 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 216 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2025-03-13 21:54:09,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 246 transitions, 990 flow [2025-03-13 21:54:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:54:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:54:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2025-03-13 21:54:09,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5521367521367522 [2025-03-13 21:54:09,460 INFO L175 Difference]: Start difference. First operand has 137 places, 146 transitions, 330 flow. Second operand 3 states and 323 transitions. [2025-03-13 21:54:09,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 246 transitions, 990 flow [2025-03-13 21:54:09,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 246 transitions, 986 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:09,466 INFO L231 Difference]: Finished difference. Result has 139 places, 147 transitions, 340 flow [2025-03-13 21:54:09,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=139, PETRI_TRANSITIONS=147} [2025-03-13 21:54:09,466 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, -1 predicate places. [2025-03-13 21:54:09,466 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 147 transitions, 340 flow [2025-03-13 21:54:09,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2025-03-13 21:54:09,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:09,467 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1] [2025-03-13 21:54:09,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 21:54:09,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:09,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash 147439609, now seen corresponding path program 1 times [2025-03-13 21:54:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:09,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317763451] [2025-03-13 21:54:09,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:09,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:09,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 21:54:09,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 21:54:09,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:09,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:09,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317763451] [2025-03-13 21:54:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317763451] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:09,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:09,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:09,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587104041] [2025-03-13 21:54:09,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:09,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:09,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:09,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:09,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:09,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 147 transitions, 340 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-13 21:54:09,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:09,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:09,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:11,320 INFO L124 PetriNetUnfolderBase]: 15076/25250 cut-off events. [2025-03-13 21:54:11,320 INFO L125 PetriNetUnfolderBase]: For 8893/8893 co-relation queries the response was YES. [2025-03-13 21:54:11,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54666 conditions, 25250 events. 15076/25250 cut-off events. For 8893/8893 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 160789 event pairs, 10169 based on Foata normal form. 0/22045 useless extension candidates. Maximal degree in co-relation 42645. Up to 20735 conditions per place. [2025-03-13 21:54:11,429 INFO L140 encePairwiseOnDemand]: 190/195 looper letters, 288 selfloop transitions, 4 changer transitions 0/320 dead transitions. [2025-03-13 21:54:11,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 320 transitions, 1328 flow [2025-03-13 21:54:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2025-03-13 21:54:11,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-03-13 21:54:11,430 INFO L175 Difference]: Start difference. First operand has 139 places, 147 transitions, 340 flow. Second operand 4 states and 429 transitions. [2025-03-13 21:54:11,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 320 transitions, 1328 flow [2025-03-13 21:54:11,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 320 transitions, 1322 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:11,440 INFO L231 Difference]: Finished difference. Result has 143 places, 150 transitions, 366 flow [2025-03-13 21:54:11,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=143, PETRI_TRANSITIONS=150} [2025-03-13 21:54:11,441 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2025-03-13 21:54:11,441 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 150 transitions, 366 flow [2025-03-13 21:54:11,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-13 21:54:11,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:11,441 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1] [2025-03-13 21:54:11,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 21:54:11,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:11,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1371879600, now seen corresponding path program 1 times [2025-03-13 21:54:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:11,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653004604] [2025-03-13 21:54:11,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:11,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 21:54:11,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 21:54:11,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:11,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:11,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:11,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653004604] [2025-03-13 21:54:11,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653004604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:11,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:11,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:11,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982288802] [2025-03-13 21:54:11,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:11,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:11,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:11,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:11,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:11,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:11,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 150 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-13 21:54:11,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:11,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:11,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:13,631 INFO L124 PetriNetUnfolderBase]: 17170/28706 cut-off events. [2025-03-13 21:54:13,631 INFO L125 PetriNetUnfolderBase]: For 14227/14227 co-relation queries the response was YES. [2025-03-13 21:54:13,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66563 conditions, 28706 events. 17170/28706 cut-off events. For 14227/14227 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 183770 event pairs, 11813 based on Foata normal form. 0/25691 useless extension candidates. Maximal degree in co-relation 55189. Up to 23687 conditions per place. [2025-03-13 21:54:13,746 INFO L140 encePairwiseOnDemand]: 190/195 looper letters, 291 selfloop transitions, 4 changer transitions 0/323 dead transitions. [2025-03-13 21:54:13,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 323 transitions, 1390 flow [2025-03-13 21:54:13,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2025-03-13 21:54:13,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5448717948717948 [2025-03-13 21:54:13,747 INFO L175 Difference]: Start difference. First operand has 143 places, 150 transitions, 366 flow. Second operand 4 states and 425 transitions. [2025-03-13 21:54:13,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 323 transitions, 1390 flow [2025-03-13 21:54:13,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 323 transitions, 1384 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:13,768 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 392 flow [2025-03-13 21:54:13,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=147, PETRI_TRANSITIONS=153} [2025-03-13 21:54:13,769 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 7 predicate places. [2025-03-13 21:54:13,769 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 392 flow [2025-03-13 21:54:13,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-13 21:54:13,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:13,769 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:54:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 21:54:13,769 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:13,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash -720177383, now seen corresponding path program 1 times [2025-03-13 21:54:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520208122] [2025-03-13 21:54:13,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:13,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-13 21:54:13,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-13 21:54:13,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:13,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:13,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520208122] [2025-03-13 21:54:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520208122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:13,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:13,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:13,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300919496] [2025-03-13 21:54:13,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:13,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:13,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:13,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:13,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:13,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:13,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 153 transitions, 392 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-13 21:54:13,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:13,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:13,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:16,094 INFO L124 PetriNetUnfolderBase]: 19282/32198 cut-off events. [2025-03-13 21:54:16,094 INFO L125 PetriNetUnfolderBase]: For 18088/18088 co-relation queries the response was YES. [2025-03-13 21:54:16,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80039 conditions, 32198 events. 19282/32198 cut-off events. For 18088/18088 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 210020 event pairs, 13691 based on Foata normal form. 0/29415 useless extension candidates. Maximal degree in co-relation 66851. Up to 26999 conditions per place. [2025-03-13 21:54:16,253 INFO L140 encePairwiseOnDemand]: 190/195 looper letters, 300 selfloop transitions, 4 changer transitions 0/332 dead transitions. [2025-03-13 21:54:16,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 332 transitions, 1462 flow [2025-03-13 21:54:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2025-03-13 21:54:16,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-03-13 21:54:16,255 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 392 flow. Second operand 4 states and 429 transitions. [2025-03-13 21:54:16,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 332 transitions, 1462 flow [2025-03-13 21:54:16,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 332 transitions, 1456 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:16,352 INFO L231 Difference]: Finished difference. Result has 151 places, 156 transitions, 424 flow [2025-03-13 21:54:16,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=151, PETRI_TRANSITIONS=156} [2025-03-13 21:54:16,353 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 11 predicate places. [2025-03-13 21:54:16,353 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 156 transitions, 424 flow [2025-03-13 21:54:16,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-13 21:54:16,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:16,354 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:54:16,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-13 21:54:16,354 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:16,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1114805591, now seen corresponding path program 1 times [2025-03-13 21:54:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:16,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820276761] [2025-03-13 21:54:16,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:16,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:16,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-13 21:54:16,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-13 21:54:16,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:16,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:16,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:16,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820276761] [2025-03-13 21:54:16,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820276761] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:16,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:16,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785528383] [2025-03-13 21:54:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:16,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:16,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:16,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:16,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:16,452 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:16,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 156 transitions, 424 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-13 21:54:16,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:16,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:16,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:19,078 INFO L124 PetriNetUnfolderBase]: 21628/36050 cut-off events. [2025-03-13 21:54:19,078 INFO L125 PetriNetUnfolderBase]: For 27944/27944 co-relation queries the response was YES. [2025-03-13 21:54:19,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95099 conditions, 36050 events. 21628/36050 cut-off events. For 27944/27944 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 237744 event pairs, 15587 based on Foata normal form. 0/33553 useless extension candidates. Maximal degree in co-relation 80385. Up to 30347 conditions per place. [2025-03-13 21:54:19,312 INFO L140 encePairwiseOnDemand]: 190/195 looper letters, 303 selfloop transitions, 4 changer transitions 0/335 dead transitions. [2025-03-13 21:54:19,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 335 transitions, 1542 flow [2025-03-13 21:54:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2025-03-13 21:54:19,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5448717948717948 [2025-03-13 21:54:19,313 INFO L175 Difference]: Start difference. First operand has 151 places, 156 transitions, 424 flow. Second operand 4 states and 425 transitions. [2025-03-13 21:54:19,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 335 transitions, 1542 flow [2025-03-13 21:54:19,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 335 transitions, 1518 flow, removed 9 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:19,481 INFO L231 Difference]: Finished difference. Result has 155 places, 159 transitions, 450 flow [2025-03-13 21:54:19,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=450, PETRI_PLACES=155, PETRI_TRANSITIONS=159} [2025-03-13 21:54:19,482 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 15 predicate places. [2025-03-13 21:54:19,482 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 159 transitions, 450 flow [2025-03-13 21:54:19,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-13 21:54:19,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:19,482 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:54:19,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-13 21:54:19,482 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:19,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1486508119, now seen corresponding path program 1 times [2025-03-13 21:54:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:19,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690467149] [2025-03-13 21:54:19,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:19,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-13 21:54:19,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-13 21:54:19,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:19,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:19,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:19,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690467149] [2025-03-13 21:54:19,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690467149] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:19,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:19,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:19,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142736233] [2025-03-13 21:54:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:19,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:19,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:19,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:19,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:19,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 159 transitions, 450 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2025-03-13 21:54:19,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:19,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:19,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:23,382 INFO L124 PetriNetUnfolderBase]: 30592/49360 cut-off events. [2025-03-13 21:54:23,382 INFO L125 PetriNetUnfolderBase]: For 43722/43722 co-relation queries the response was YES. [2025-03-13 21:54:23,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137455 conditions, 49360 events. 30592/49360 cut-off events. For 43722/43722 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 320072 event pairs, 10653 based on Foata normal form. 230/47060 useless extension candidates. Maximal degree in co-relation 116751. Up to 20261 conditions per place. [2025-03-13 21:54:23,698 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 357 selfloop transitions, 3 changer transitions 0/388 dead transitions. [2025-03-13 21:54:23,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 388 transitions, 1860 flow [2025-03-13 21:54:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2025-03-13 21:54:23,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5923076923076923 [2025-03-13 21:54:23,700 INFO L175 Difference]: Start difference. First operand has 155 places, 159 transitions, 450 flow. Second operand 4 states and 462 transitions. [2025-03-13 21:54:23,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 388 transitions, 1860 flow [2025-03-13 21:54:23,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 388 transitions, 1836 flow, removed 9 selfloop flow, removed 1 redundant places. [2025-03-13 21:54:23,997 INFO L231 Difference]: Finished difference. Result has 158 places, 160 transitions, 458 flow [2025-03-13 21:54:23,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=458, PETRI_PLACES=158, PETRI_TRANSITIONS=160} [2025-03-13 21:54:23,998 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 18 predicate places. [2025-03-13 21:54:23,998 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 160 transitions, 458 flow [2025-03-13 21:54:23,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2025-03-13 21:54:23,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:23,998 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:54:23,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-13 21:54:23,998 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:23,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2141867321, now seen corresponding path program 1 times [2025-03-13 21:54:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:23,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81616831] [2025-03-13 21:54:23,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:24,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-13 21:54:24,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-13 21:54:24,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:24,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:54:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81616831] [2025-03-13 21:54:24,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81616831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:24,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:24,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:24,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974939312] [2025-03-13 21:54:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:24,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:24,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:24,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:24,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:24,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 160 transitions, 458 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2025-03-13 21:54:24,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:24,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:24,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:30,297 INFO L124 PetriNetUnfolderBase]: 43075/68978 cut-off events. [2025-03-13 21:54:30,297 INFO L125 PetriNetUnfolderBase]: For 58632/58632 co-relation queries the response was YES. [2025-03-13 21:54:30,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191633 conditions, 68978 events. 43075/68978 cut-off events. For 58632/58632 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 452831 event pairs, 14693 based on Foata normal form. 311/65916 useless extension candidates. Maximal degree in co-relation 165846. Up to 28835 conditions per place. [2025-03-13 21:54:30,612 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 354 selfloop transitions, 3 changer transitions 0/385 dead transitions. [2025-03-13 21:54:30,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 385 transitions, 1856 flow [2025-03-13 21:54:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2025-03-13 21:54:30,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5871794871794872 [2025-03-13 21:54:30,613 INFO L175 Difference]: Start difference. First operand has 158 places, 160 transitions, 458 flow. Second operand 4 states and 458 transitions. [2025-03-13 21:54:30,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 385 transitions, 1856 flow [2025-03-13 21:54:30,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 385 transitions, 1838 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-13 21:54:31,000 INFO L231 Difference]: Finished difference. Result has 160 places, 161 transitions, 468 flow [2025-03-13 21:54:31,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=468, PETRI_PLACES=160, PETRI_TRANSITIONS=161} [2025-03-13 21:54:31,001 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 20 predicate places. [2025-03-13 21:54:31,001 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 161 transitions, 468 flow [2025-03-13 21:54:31,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2025-03-13 21:54:31,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:31,001 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-13 21:54:31,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-13 21:54:31,001 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:31,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:31,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2110708587, now seen corresponding path program 2 times [2025-03-13 21:54:31,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:31,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535418321] [2025-03-13 21:54:31,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 21:54:31,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:31,022 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-13 21:54:31,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 50 of 65 statements. [2025-03-13 21:54:31,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:54:31,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:54:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-13 21:54:31,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:54:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535418321] [2025-03-13 21:54:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535418321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:54:31,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:54:31,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:54:31,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914181139] [2025-03-13 21:54:31,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:54:31,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:54:31,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:54:31,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:54:31,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:54:31,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 195 [2025-03-13 21:54:31,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 161 transitions, 468 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2025-03-13 21:54:31,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:54:31,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 195 [2025-03-13 21:54:31,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:54:35,685 INFO L124 PetriNetUnfolderBase]: 34931/52506 cut-off events. [2025-03-13 21:54:35,686 INFO L125 PetriNetUnfolderBase]: For 62302/62302 co-relation queries the response was YES. [2025-03-13 21:54:35,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154900 conditions, 52506 events. 34931/52506 cut-off events. For 62302/62302 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 319585 event pairs, 12608 based on Foata normal form. 130/51036 useless extension candidates. Maximal degree in co-relation 147977. Up to 27968 conditions per place. [2025-03-13 21:54:35,963 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 245 selfloop transitions, 3 changer transitions 3/277 dead transitions. [2025-03-13 21:54:35,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 277 transitions, 1438 flow [2025-03-13 21:54:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:54:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:54:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2025-03-13 21:54:35,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2025-03-13 21:54:35,964 INFO L175 Difference]: Start difference. First operand has 160 places, 161 transitions, 468 flow. Second operand 4 states and 345 transitions. [2025-03-13 21:54:35,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 277 transitions, 1438 flow [2025-03-13 21:54:36,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 277 transitions, 1420 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-13 21:54:36,077 INFO L231 Difference]: Finished difference. Result has 162 places, 159 transitions, 468 flow [2025-03-13 21:54:36,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=468, PETRI_PLACES=162, PETRI_TRANSITIONS=159} [2025-03-13 21:54:36,077 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 22 predicate places. [2025-03-13 21:54:36,077 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 159 transitions, 468 flow [2025-03-13 21:54:36,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2025-03-13 21:54:36,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:54:36,078 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-13 21:54:36,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-13 21:54:36,078 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-13 21:54:36,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:54:36,079 INFO L85 PathProgramCache]: Analyzing trace with hash -333611566, now seen corresponding path program 1 times [2025-03-13 21:54:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:54:36,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059033699] [2025-03-13 21:54:36,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:54:36,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:54:36,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-13 21:54:36,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-13 21:54:36,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:54:36,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat