./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:35:44,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:35:44,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:35:44,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:35:44,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:35:44,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:35:44,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:35:44,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:35:44,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:35:44,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:35:44,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:35:44,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:35:44,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:35:44,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:35:44,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:35:44,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:35:44,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:35:44,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:35:44,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:35:44,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:35:44,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:35:44,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:35:44,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:35:44,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:35:44,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:35:44,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:35:44,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:35:44,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:35:44,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:35:44,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:35:44,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:35:44,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:35:44,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:35:44,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:35:44,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:35:44,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:35:44,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:35:44,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:35:44,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:35:44,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:35:44,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:35:44,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:35:44,255 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe [2024-11-16 19:35:44,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:35:44,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:35:44,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:35:44,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:35:44,603 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:35:44,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-16 19:35:46,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:35:47,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:35:47,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-16 19:35:47,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de000b8b9/24cbe6aff2e34d86a0a7f89a11ffc692/FLAG7bb1d7628 [2024-11-16 19:35:47,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de000b8b9/24cbe6aff2e34d86a0a7f89a11ffc692 [2024-11-16 19:35:47,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:35:47,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:35:47,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:35:47,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:35:47,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:35:47,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:35:47" (1/1) ... [2024-11-16 19:35:47,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e608683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:47, skipping insertion in model container [2024-11-16 19:35:47,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:35:47" (1/1) ... [2024-11-16 19:35:47,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:35:50,326 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] [2024-11-16 19:35:50,333 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] [2024-11-16 19:35:50,398 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] [2024-11-16 19:35:50,403 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] [2024-11-16 19:35:50,403 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] [2024-11-16 19:35:50,405 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] [2024-11-16 19:35:50,405 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] [2024-11-16 19:35:50,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:35:50,422 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:35:50,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2024-11-16 19:35:50,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2024-11-16 19:35:50,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2024-11-16 19:35:50,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2024-11-16 19:35:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2024-11-16 19:35:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2024-11-16 19:35:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2024-11-16 19:35:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2024-11-16 19:35:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2024-11-16 19:35:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2024-11-16 19:35:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2024-11-16 19:35:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2024-11-16 19:35:50,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2024-11-16 19:35:50,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2024-11-16 19:35:50,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2024-11-16 19:35:50,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2024-11-16 19:35:50,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2024-11-16 19:35:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2024-11-16 19:35:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2024-11-16 19:35:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2024-11-16 19:35:50,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2024-11-16 19:35:50,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2024-11-16 19:35:50,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2024-11-16 19:35:50,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2024-11-16 19:35:50,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2024-11-16 19:35:50,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2024-11-16 19:35:50,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2024-11-16 19:35:50,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2024-11-16 19:35:50,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2024-11-16 19:35:50,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2024-11-16 19:35:50,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2024-11-16 19:35:50,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2024-11-16 19:35:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2024-11-16 19:35:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2024-11-16 19:35:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2024-11-16 19:35:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2024-11-16 19:35:50,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2024-11-16 19:35:50,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2024-11-16 19:35:50,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2024-11-16 19:35:50,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2024-11-16 19:35:50,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2024-11-16 19:35:50,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2024-11-16 19:35:50,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2024-11-16 19:35:50,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2024-11-16 19:35:50,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2024-11-16 19:35:50,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2024-11-16 19:35:50,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2024-11-16 19:35:50,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2024-11-16 19:35:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2024-11-16 19:35:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2024-11-16 19:35:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2024-11-16 19:35:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2024-11-16 19:35:50,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2024-11-16 19:35:50,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2024-11-16 19:35:50,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2024-11-16 19:35:50,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2024-11-16 19:35:50,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2024-11-16 19:35:50,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2024-11-16 19:35:50,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2024-11-16 19:35:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2024-11-16 19:35:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2024-11-16 19:35:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2024-11-16 19:35:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2024-11-16 19:35:50,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2024-11-16 19:35:50,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2024-11-16 19:35:50,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2024-11-16 19:35:50,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2024-11-16 19:35:50,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2024-11-16 19:35:50,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2024-11-16 19:35:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2024-11-16 19:35:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2024-11-16 19:35:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2024-11-16 19:35:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2024-11-16 19:35:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2024-11-16 19:35:50,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2024-11-16 19:35:50,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2024-11-16 19:35:50,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2024-11-16 19:35:50,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2024-11-16 19:35:50,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2024-11-16 19:35:50,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2024-11-16 19:35:50,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2024-11-16 19:35:50,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2024-11-16 19:35:50,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2024-11-16 19:35:50,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2024-11-16 19:35:50,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2024-11-16 19:35:50,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2024-11-16 19:35:50,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2024-11-16 19:35:50,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2024-11-16 19:35:50,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2024-11-16 19:35:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2024-11-16 19:35:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2024-11-16 19:35:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2024-11-16 19:35:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2024-11-16 19:35:50,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2024-11-16 19:35:50,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2024-11-16 19:35:50,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2024-11-16 19:35:50,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2024-11-16 19:35:50,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2024-11-16 19:35:50,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2024-11-16 19:35:50,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2024-11-16 19:35:50,728 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] [2024-11-16 19:35:50,729 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] [2024-11-16 19:35:50,745 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] [2024-11-16 19:35:50,747 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] [2024-11-16 19:35:50,748 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] [2024-11-16 19:35:50,748 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] [2024-11-16 19:35:50,753 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] [2024-11-16 19:35:50,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:35:51,092 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:35:51,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51 WrapperNode [2024-11-16 19:35:51,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:35:51,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:35:51,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:35:51,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:35:51,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,385 INFO L138 Inliner]: procedures = 914, calls = 950, calls flagged for inlining = 815, calls inlined = 57, statements flattened = 634 [2024-11-16 19:35:51,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:35:51,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:35:51,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:35:51,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:35:51,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,489 INFO L175 MemorySlicer]: Split 65 memory accesses to 5 slices as follows [2, 9, 8, 44, 2]. 68 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 4, 6, 0]. The 20 writes are split as follows [0, 2, 3, 14, 1]. [2024-11-16 19:35:51,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,529 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:35:51,569 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:35:51,569 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:35:51,569 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:35:51,570 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (1/1) ... [2024-11-16 19:35:51,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:35:51,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:35:51,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:35:51,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:35:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:35:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:35:51,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:35:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:35:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-16 19:35:51,875 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:35:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:35:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:35:51,877 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:35:52,171 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:35:52,173 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:35:52,711 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2024-11-16 19:35:52,711 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483-9: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2024-11-16 19:35:52,711 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483-18: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6036-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6036: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438: havoc vatomic32_read_rlx_#t~ret116#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438-9: havoc vatomic32_read_rlx_#t~ret116#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6043: havoc main_~#r~0#1.base, main_~#r~0#1.offset; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6043-1: SUMMARY for call ULTIMATE.dealloc(main_~#r~0#1.base, main_~#r~0#1.offset); srcloc: null [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443: havoc vatomic32_read_acq_#t~ret117#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-9: havoc vatomic32_read_acq_#t~ret117#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-18: havoc vatomic32_read_acq_#t~ret117#1; [2024-11-16 19:35:52,712 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443-27: havoc vatomic32_read_acq_#t~ret117#1; [2024-11-16 19:35:52,713 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2808: havoc vatomic32_await_eq_rlx_#t~ret172#1; [2024-11-16 19:35:53,000 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2483: havoc vatomic32_cmpxchg_rel_#t~ret123#1; [2024-11-16 19:35:53,001 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2443: havoc vatomic32_read_acq_#t~ret117#1; [2024-11-16 19:35:53,001 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019: havoc ~#xbo~0#1.base, ~#xbo~0#1.offset; [2024-11-16 19:35:53,001 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019-1: SUMMARY for call ULTIMATE.dealloc(~#xbo~0#1.base, ~#xbo~0#1.offset); srcloc: null [2024-11-16 19:35:53,001 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438: havoc vatomic32_read_rlx_#t~ret116#1; [2024-11-16 19:35:53,002 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:35:53,002 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:35:53,730 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:35:53,731 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:35:53,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:35:53 BoogieIcfgContainer [2024-11-16 19:35:53,731 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:35:53,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:35:53,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:35:53,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:35:53,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:35:47" (1/3) ... [2024-11-16 19:35:53,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2387fc46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:35:53, skipping insertion in model container [2024-11-16 19:35:53,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:35:51" (2/3) ... [2024-11-16 19:35:53,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2387fc46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:35:53, skipping insertion in model container [2024-11-16 19:35:53,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:35:53" (3/3) ... [2024-11-16 19:35:53,739 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_full.i [2024-11-16 19:35:53,753 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:35:53,754 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-16 19:35:53,754 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:35:53,836 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 19:35:53,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 204 transitions, 415 flow [2024-11-16 19:35:54,064 INFO L124 PetriNetUnfolderBase]: 109/353 cut-off events. [2024-11-16 19:35:54,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:35:54,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 353 events. 109/353 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1129 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 175. Up to 6 conditions per place. [2024-11-16 19:35:54,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 204 transitions, 415 flow [2024-11-16 19:35:54,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 204 transitions, 415 flow [2024-11-16 19:35:54,107 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:35:54,125 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;@754af14c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:35:54,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-16 19:35:54,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:35:54,134 INFO L124 PetriNetUnfolderBase]: 3/10 cut-off events. [2024-11-16 19:35:54,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:35:54,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:35:54,135 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-16 19:35:54,139 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)] === [2024-11-16 19:35:54,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:35:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash 55311913, now seen corresponding path program 1 times [2024-11-16 19:35:54,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:35:54,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372030059] [2024-11-16 19:35:54,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:35:54,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:35:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:35:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:35:54,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:35:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372030059] [2024-11-16 19:35:54,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372030059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:35:54,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:35:54,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:35:54,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379003991] [2024-11-16 19:35:54,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:35:54,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:35:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:35:54,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:35:54,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:35:54,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 204 [2024-11-16 19:35:54,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 204 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:35:54,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:35:54,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 204 [2024-11-16 19:35:54,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:35:55,139 INFO L124 PetriNetUnfolderBase]: 1169/2869 cut-off events. [2024-11-16 19:35:55,140 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:35:55,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4989 conditions, 2869 events. 1169/2869 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17292 event pairs, 816 based on Foata normal form. 722/3207 useless extension candidates. Maximal degree in co-relation 4781. Up to 2106 conditions per place. [2024-11-16 19:35:55,162 INFO L140 encePairwiseOnDemand]: 154/204 looper letters, 89 selfloop transitions, 2 changer transitions 1/154 dead transitions. [2024-11-16 19:35:55,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 154 transitions, 499 flow [2024-11-16 19:35:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:35:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:35:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2024-11-16 19:35:55,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5375816993464052 [2024-11-16 19:35:55,177 INFO L175 Difference]: Start difference. First operand has 146 places, 204 transitions, 415 flow. Second operand 3 states and 329 transitions. [2024-11-16 19:35:55,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 154 transitions, 499 flow [2024-11-16 19:35:55,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 499 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:35:55,187 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 317 flow [2024-11-16 19:35:55,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2024-11-16 19:35:55,194 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 0 predicate places. [2024-11-16 19:35:55,194 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 317 flow [2024-11-16 19:35:55,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:35:55,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:35:55,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:35:55,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:35:55,195 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)] === [2024-11-16 19:35:55,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:35:55,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1464470408, now seen corresponding path program 1 times [2024-11-16 19:35:55,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:35:55,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131347986] [2024-11-16 19:35:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:35:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:35:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:35:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:35:55,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:35:55,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131347986] [2024-11-16 19:35:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131347986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:35:55,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:35:55,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:35:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294396349] [2024-11-16 19:35:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:35:55,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:35:55,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:35:55,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:35:55,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:35:55,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 204 [2024-11-16 19:35:55,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:35:55,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:35:55,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 204 [2024-11-16 19:35:55,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:35:56,364 INFO L124 PetriNetUnfolderBase]: 1149/2829 cut-off events. [2024-11-16 19:35:56,365 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:35:56,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4914 conditions, 2829 events. 1149/2829 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17135 event pairs, 800 based on Foata normal form. 1/2450 useless extension candidates. Maximal degree in co-relation 4882. Up to 2068 conditions per place. [2024-11-16 19:35:56,380 INFO L140 encePairwiseOnDemand]: 201/204 looper letters, 89 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2024-11-16 19:35:56,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 151 transitions, 495 flow [2024-11-16 19:35:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:35:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:35:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2024-11-16 19:35:56,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4591503267973856 [2024-11-16 19:35:56,385 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 317 flow. Second operand 3 states and 281 transitions. [2024-11-16 19:35:56,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 151 transitions, 495 flow [2024-11-16 19:35:56,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 151 transitions, 491 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:35:56,389 INFO L231 Difference]: Finished difference. Result has 143 places, 151 transitions, 313 flow [2024-11-16 19:35:56,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=141, 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=313, PETRI_PLACES=143, PETRI_TRANSITIONS=151} [2024-11-16 19:35:56,390 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2024-11-16 19:35:56,390 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 151 transitions, 313 flow [2024-11-16 19:35:56,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:35:56,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:35:56,391 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:35:56,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:35:56,392 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)] === [2024-11-16 19:35:56,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:35:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 492227217, now seen corresponding path program 1 times [2024-11-16 19:35:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:35:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057036528] [2024-11-16 19:35:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:35:56,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:35:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:35:56,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:35:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:35:56,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:35:56,615 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:35:56,616 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-16 19:35:56,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-16 19:35:56,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-16 19:35:56,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-16 19:35:56,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-16 19:35:56,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-16 19:35:56,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-16 19:35:56,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-16 19:35:56,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:35:56,619 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 19:35:56,624 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:35:56,624 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 19:35:56,706 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 19:35:56,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 230 transitions, 476 flow [2024-11-16 19:35:56,868 INFO L124 PetriNetUnfolderBase]: 212/677 cut-off events. [2024-11-16 19:35:56,868 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 19:35:56,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 677 events. 212/677 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2871 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 355. Up to 12 conditions per place. [2024-11-16 19:35:56,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 230 transitions, 476 flow [2024-11-16 19:35:56,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 230 transitions, 476 flow [2024-11-16 19:35:56,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:35:56,881 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;@754af14c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:35:56,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-16 19:35:56,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:35:56,886 INFO L124 PetriNetUnfolderBase]: 3/10 cut-off events. [2024-11-16 19:35:56,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:35:56,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:35:56,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-16 19:35:56,886 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)] === [2024-11-16 19:35:56,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:35:56,887 INFO L85 PathProgramCache]: Analyzing trace with hash 62392233, now seen corresponding path program 1 times [2024-11-16 19:35:56,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:35:56,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064275583] [2024-11-16 19:35:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:35:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:35:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:35:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:35:56,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:35:56,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064275583] [2024-11-16 19:35:56,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064275583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:35:56,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:35:56,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:35:56,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540235569] [2024-11-16 19:35:56,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:35:56,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:35:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:35:56,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:35:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:35:56,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:35:56,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 230 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-11-16 19:35:56,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:35:56,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:35:56,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:07,392 INFO L124 PetriNetUnfolderBase]: 39743/67807 cut-off events. [2024-11-16 19:36:07,393 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-16 19:36:07,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124483 conditions, 67807 events. 39743/67807 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 544780 event pairs, 29648 based on Foata normal form. 13650/72005 useless extension candidates. Maximal degree in co-relation 95272. Up to 56575 conditions per place. [2024-11-16 19:36:08,166 INFO L140 encePairwiseOnDemand]: 178/230 looper letters, 111 selfloop transitions, 2 changer transitions 1/178 dead transitions. [2024-11-16 19:36:08,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 178 transitions, 600 flow [2024-11-16 19:36:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:36:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:36:08,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-11-16 19:36:08,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202898550724637 [2024-11-16 19:36:08,174 INFO L175 Difference]: Start difference. First operand has 167 places, 230 transitions, 476 flow. Second operand 3 states and 359 transitions. [2024-11-16 19:36:08,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 178 transitions, 600 flow [2024-11-16 19:36:08,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 178 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:36:08,179 INFO L231 Difference]: Finished difference. Result has 167 places, 177 transitions, 374 flow [2024-11-16 19:36:08,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=167, PETRI_TRANSITIONS=177} [2024-11-16 19:36:08,184 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 0 predicate places. [2024-11-16 19:36:08,184 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 177 transitions, 374 flow [2024-11-16 19:36:08,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-11-16 19:36:08,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:08,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:08,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:36:08,187 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)] === [2024-11-16 19:36:08,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:08,188 INFO L85 PathProgramCache]: Analyzing trace with hash -987826402, now seen corresponding path program 1 times [2024-11-16 19:36:08,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:08,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909037178] [2024-11-16 19:36:08,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:08,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:36:08,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909037178] [2024-11-16 19:36:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909037178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:08,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:08,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:36:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716013085] [2024-11-16 19:36:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:08,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:36:08,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:36:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:36:08,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:36:08,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 177 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-11-16 19:36:08,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:08,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:36:08,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:16,015 INFO L124 PetriNetUnfolderBase]: 39023/66761 cut-off events. [2024-11-16 19:36:16,015 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-16 19:36:16,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122396 conditions, 66761 events. 39023/66761 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 538520 event pairs, 29072 based on Foata normal form. 1/57419 useless extension candidates. Maximal degree in co-relation 122363. Up to 55531 conditions per place. [2024-11-16 19:36:16,407 INFO L140 encePairwiseOnDemand]: 227/230 looper letters, 111 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2024-11-16 19:36:16,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 175 transitions, 596 flow [2024-11-16 19:36:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:36:16,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:36:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2024-11-16 19:36:16,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44782608695652176 [2024-11-16 19:36:16,412 INFO L175 Difference]: Start difference. First operand has 167 places, 177 transitions, 374 flow. Second operand 3 states and 309 transitions. [2024-11-16 19:36:16,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 175 transitions, 596 flow [2024-11-16 19:36:16,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 175 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:36:16,419 INFO L231 Difference]: Finished difference. Result has 164 places, 175 transitions, 370 flow [2024-11-16 19:36:16,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=164, PETRI_TRANSITIONS=175} [2024-11-16 19:36:16,423 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, -3 predicate places. [2024-11-16 19:36:16,424 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 175 transitions, 370 flow [2024-11-16 19:36:16,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-11-16 19:36:16,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:16,424 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:16,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:36:16,424 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)] === [2024-11-16 19:36:16,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash 527563483, now seen corresponding path program 1 times [2024-11-16 19:36:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:16,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884000736] [2024-11-16 19:36:16,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:16,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:36:16,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:16,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884000736] [2024-11-16 19:36:16,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884000736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:36:16,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703069537] [2024-11-16 19:36:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:16,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:36:16,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:36:16,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:36:16,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:36:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:16,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 19:36:16,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:36:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:36:16,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:36:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:36:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703069537] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:36:16,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:36:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-16 19:36:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34971555] [2024-11-16 19:36:16,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:36:16,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 19:36:16,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:16,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 19:36:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 19:36:16,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:36:16,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 175 transitions, 370 flow. Second operand has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:16,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:16,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:36:16,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:25,435 INFO L124 PetriNetUnfolderBase]: 39005/71450 cut-off events. [2024-11-16 19:36:25,436 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-16 19:36:25,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127067 conditions, 71450 events. 39005/71450 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 629617 event pairs, 526 based on Foata normal form. 0/61729 useless extension candidates. Maximal degree in co-relation 127034. Up to 52790 conditions per place. [2024-11-16 19:36:26,023 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 212 selfloop transitions, 4 changer transitions 0/276 dead transitions. [2024-11-16 19:36:26,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 276 transitions, 1002 flow [2024-11-16 19:36:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:36:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:36:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2024-11-16 19:36:26,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47304347826086957 [2024-11-16 19:36:26,026 INFO L175 Difference]: Start difference. First operand has 164 places, 175 transitions, 370 flow. Second operand 5 states and 544 transitions. [2024-11-16 19:36:26,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 276 transitions, 1002 flow [2024-11-16 19:36:26,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 276 transitions, 994 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:36:26,042 INFO L231 Difference]: Finished difference. Result has 166 places, 175 transitions, 380 flow [2024-11-16 19:36:26,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=380, PETRI_PLACES=166, PETRI_TRANSITIONS=175} [2024-11-16 19:36:26,048 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, -1 predicate places. [2024-11-16 19:36:26,049 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 175 transitions, 380 flow [2024-11-16 19:36:26,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:26,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:26,055 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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] [2024-11-16 19:36:26,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 19:36:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 19:36:26,257 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)] === [2024-11-16 19:36:26,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash 383748888, now seen corresponding path program 1 times [2024-11-16 19:36:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:26,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738521299] [2024-11-16 19:36:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 19:36:26,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:26,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738521299] [2024-11-16 19:36:26,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738521299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:26,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:36:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620102801] [2024-11-16 19:36:26,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:36:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:36:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:36:26,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:36:26,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 175 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:26,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:26,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:36:26,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:28,274 INFO L124 PetriNetUnfolderBase]: 4773/9748 cut-off events. [2024-11-16 19:36:28,275 INFO L125 PetriNetUnfolderBase]: For 1267/1267 co-relation queries the response was YES. [2024-11-16 19:36:28,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18799 conditions, 9748 events. 4773/9748 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 67275 event pairs, 2416 based on Foata normal form. 0/8514 useless extension candidates. Maximal degree in co-relation 11190. Up to 5730 conditions per place. [2024-11-16 19:36:28,321 INFO L140 encePairwiseOnDemand]: 227/230 looper letters, 157 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2024-11-16 19:36:28,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 219 transitions, 790 flow [2024-11-16 19:36:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:36:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:36:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-16 19:36:28,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130434782608696 [2024-11-16 19:36:28,328 INFO L175 Difference]: Start difference. First operand has 166 places, 175 transitions, 380 flow. Second operand 3 states and 354 transitions. [2024-11-16 19:36:28,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 219 transitions, 790 flow [2024-11-16 19:36:28,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 219 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:36:28,335 INFO L231 Difference]: Finished difference. Result has 167 places, 176 transitions, 388 flow [2024-11-16 19:36:28,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=167, PETRI_TRANSITIONS=176} [2024-11-16 19:36:28,346 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 0 predicate places. [2024-11-16 19:36:28,346 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 176 transitions, 388 flow [2024-11-16 19:36:28,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:28,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:28,347 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:28,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:36:28,347 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)] === [2024-11-16 19:36:28,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash -169454835, now seen corresponding path program 1 times [2024-11-16 19:36:28,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:28,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256872088] [2024-11-16 19:36:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:28,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 19:36:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256872088] [2024-11-16 19:36:28,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256872088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:28,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:28,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:36:28,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590690618] [2024-11-16 19:36:28,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:28,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:36:28,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:28,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:36:28,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:36:28,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:36:28,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 176 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:28,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:28,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:36:28,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:30,399 INFO L124 PetriNetUnfolderBase]: 8149/15563 cut-off events. [2024-11-16 19:36:30,400 INFO L125 PetriNetUnfolderBase]: For 3593/3593 co-relation queries the response was YES. [2024-11-16 19:36:30,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30615 conditions, 15563 events. 8149/15563 cut-off events. For 3593/3593 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 109832 event pairs, 5076 based on Foata normal form. 0/13486 useless extension candidates. Maximal degree in co-relation 24368. Up to 7978 conditions per place. [2024-11-16 19:36:30,514 INFO L140 encePairwiseOnDemand]: 227/230 looper letters, 214 selfloop transitions, 2 changer transitions 0/276 dead transitions. [2024-11-16 19:36:30,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 276 transitions, 1040 flow [2024-11-16 19:36:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:36:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:36:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2024-11-16 19:36:30,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5927536231884057 [2024-11-16 19:36:30,522 INFO L175 Difference]: Start difference. First operand has 167 places, 176 transitions, 388 flow. Second operand 3 states and 409 transitions. [2024-11-16 19:36:30,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 276 transitions, 1040 flow [2024-11-16 19:36:30,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 276 transitions, 1036 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:36:30,539 INFO L231 Difference]: Finished difference. Result has 169 places, 177 transitions, 398 flow [2024-11-16 19:36:30,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=169, PETRI_TRANSITIONS=177} [2024-11-16 19:36:30,545 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 2 predicate places. [2024-11-16 19:36:30,545 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 177 transitions, 398 flow [2024-11-16 19:36:30,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:30,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:30,545 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:30,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:36:30,545 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)] === [2024-11-16 19:36:30,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1332156884, now seen corresponding path program 1 times [2024-11-16 19:36:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:30,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430861750] [2024-11-16 19:36:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 19:36:30,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:30,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430861750] [2024-11-16 19:36:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430861750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:30,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:36:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866517630] [2024-11-16 19:36:30,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:30,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:36:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:36:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:36:30,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 230 [2024-11-16 19:36:30,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 177 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:30,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:30,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 230 [2024-11-16 19:36:30,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:33,481 INFO L124 PetriNetUnfolderBase]: 13369/24385 cut-off events. [2024-11-16 19:36:33,482 INFO L125 PetriNetUnfolderBase]: For 5364/5364 co-relation queries the response was YES. [2024-11-16 19:36:33,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49611 conditions, 24385 events. 13369/24385 cut-off events. For 5364/5364 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 176213 event pairs, 7236 based on Foata normal form. 0/21124 useless extension candidates. Maximal degree in co-relation 37001. Up to 13174 conditions per place. [2024-11-16 19:36:33,659 INFO L140 encePairwiseOnDemand]: 227/230 looper letters, 213 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2024-11-16 19:36:33,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 275 transitions, 1043 flow [2024-11-16 19:36:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:36:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:36:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2024-11-16 19:36:33,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5898550724637681 [2024-11-16 19:36:33,661 INFO L175 Difference]: Start difference. First operand has 169 places, 177 transitions, 398 flow. Second operand 3 states and 407 transitions. [2024-11-16 19:36:33,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 275 transitions, 1043 flow [2024-11-16 19:36:33,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 275 transitions, 1039 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:36:33,678 INFO L231 Difference]: Finished difference. Result has 171 places, 178 transitions, 408 flow [2024-11-16 19:36:33,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=171, PETRI_TRANSITIONS=178} [2024-11-16 19:36:33,683 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 4 predicate places. [2024-11-16 19:36:33,684 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 178 transitions, 408 flow [2024-11-16 19:36:33,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:33,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:33,685 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:33,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:36:33,685 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)] === [2024-11-16 19:36:33,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:33,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1614874004, now seen corresponding path program 1 times [2024-11-16 19:36:33,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:33,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123112006] [2024-11-16 19:36:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:33,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 19:36:33,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:33,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123112006] [2024-11-16 19:36:33,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123112006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:33,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:33,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:36:33,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134086276] [2024-11-16 19:36:33,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:33,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:36:33,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:33,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:36:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:36:33,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 230 [2024-11-16 19:36:33,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 178 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:33,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:33,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 230 [2024-11-16 19:36:33,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:37,478 INFO L124 PetriNetUnfolderBase]: 14912/26990 cut-off events. [2024-11-16 19:36:37,479 INFO L125 PetriNetUnfolderBase]: For 6373/6373 co-relation queries the response was YES. [2024-11-16 19:36:37,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55946 conditions, 26990 events. 14912/26990 cut-off events. For 6373/6373 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 199621 event pairs, 10045 based on Foata normal form. 0/23772 useless extension candidates. Maximal degree in co-relation 43310. Up to 20453 conditions per place. [2024-11-16 19:36:37,707 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 282 selfloop transitions, 4 changer transitions 0/347 dead transitions. [2024-11-16 19:36:37,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 347 transitions, 1370 flow [2024-11-16 19:36:37,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:36:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:36:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 543 transitions. [2024-11-16 19:36:37,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5902173913043478 [2024-11-16 19:36:37,709 INFO L175 Difference]: Start difference. First operand has 171 places, 178 transitions, 408 flow. Second operand 4 states and 543 transitions. [2024-11-16 19:36:37,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 347 transitions, 1370 flow [2024-11-16 19:36:37,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 347 transitions, 1364 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:36:37,730 INFO L231 Difference]: Finished difference. Result has 175 places, 181 transitions, 434 flow [2024-11-16 19:36:37,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=434, PETRI_PLACES=175, PETRI_TRANSITIONS=181} [2024-11-16 19:36:37,732 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 8 predicate places. [2024-11-16 19:36:37,732 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 181 transitions, 434 flow [2024-11-16 19:36:37,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:37,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:37,733 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:37,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 19:36:37,737 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)] === [2024-11-16 19:36:37,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:37,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1649696315, now seen corresponding path program 1 times [2024-11-16 19:36:37,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:37,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030477499] [2024-11-16 19:36:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:37,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 19:36:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030477499] [2024-11-16 19:36:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030477499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:38,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:38,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:36:38,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494365020] [2024-11-16 19:36:38,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:38,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:36:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:38,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:36:38,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:36:38,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 230 [2024-11-16 19:36:38,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 181 transitions, 434 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:38,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:38,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 230 [2024-11-16 19:36:38,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:36:42,309 INFO L124 PetriNetUnfolderBase]: 16994/30596 cut-off events. [2024-11-16 19:36:42,310 INFO L125 PetriNetUnfolderBase]: For 11330/11330 co-relation queries the response was YES. [2024-11-16 19:36:42,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67915 conditions, 30596 events. 16994/30596 cut-off events. For 11330/11330 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 227741 event pairs, 11677 based on Foata normal form. 0/27564 useless extension candidates. Maximal degree in co-relation 56419. Up to 23381 conditions per place. [2024-11-16 19:36:42,484 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 285 selfloop transitions, 4 changer transitions 0/350 dead transitions. [2024-11-16 19:36:42,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 350 transitions, 1428 flow [2024-11-16 19:36:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:36:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:36:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2024-11-16 19:36:42,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5858695652173913 [2024-11-16 19:36:42,778 INFO L175 Difference]: Start difference. First operand has 175 places, 181 transitions, 434 flow. Second operand 4 states and 539 transitions. [2024-11-16 19:36:42,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 350 transitions, 1428 flow [2024-11-16 19:36:42,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 350 transitions, 1422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:36:42,814 INFO L231 Difference]: Finished difference. Result has 179 places, 184 transitions, 460 flow [2024-11-16 19:36:42,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=460, PETRI_PLACES=179, PETRI_TRANSITIONS=184} [2024-11-16 19:36:42,815 INFO L277 CegarLoopForPetriNet]: 167 programPoint places, 12 predicate places. [2024-11-16 19:36:42,815 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 184 transitions, 460 flow [2024-11-16 19:36:42,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:42,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:36:42,816 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:36:42,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 19:36:42,816 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)] === [2024-11-16 19:36:42,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:36:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1063138742, now seen corresponding path program 1 times [2024-11-16 19:36:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:36:42,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881519115] [2024-11-16 19:36:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:36:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:36:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:36:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 19:36:43,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:36:43,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881519115] [2024-11-16 19:36:43,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881519115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:36:43,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:36:43,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:36:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163184585] [2024-11-16 19:36:43,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:36:43,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:36:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:36:43,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:36:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:36:43,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 230 [2024-11-16 19:36:43,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 460 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:36:43,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:36:43,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 230 [2024-11-16 19:36:43,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand