./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:31:14,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:31:14,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 08:31:14,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:31:14,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:31:14,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:31:14,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:31:14,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:31:14,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:31:14,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:31:14,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:31:14,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:31:14,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:31:14,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:31:14,908 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:31:14,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:31:14,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:31:14,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 08:31:14,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:31:14,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 08:31:14,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:31:14,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:31:14,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:31:14,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:31:14,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:31:14,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 08:31:14,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:31:14,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:31:14,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:31:14,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:31:14,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:31:14,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:31:14,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:31:14,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:31:14,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:31:14,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:31:14,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:31:14,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:31:14,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:31:14,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:31:14,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:31:14,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:31:14,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe [2024-11-12 08:31:15,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:31:15,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:31:15,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:31:15,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:31:15,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:31:15,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-12 08:31:16,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:31:17,010 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:31:17,011 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-12 08:31:17,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce49af516/800968911a4045f5809e5ac057ac9337/FLAG9553a52dd [2024-11-12 08:31:17,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce49af516/800968911a4045f5809e5ac057ac9337 [2024-11-12 08:31:17,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:31:17,189 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:31:17,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:31:17,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:31:17,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:31:17,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:31:17" (1/1) ... [2024-11-12 08:31:17,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a310b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:17, skipping insertion in model container [2024-11-12 08:31:17,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:31:17" (1/1) ... [2024-11-12 08:31:17,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:31:19,208 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] [2024-11-12 08:31:19,212 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] [2024-11-12 08:31:19,239 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] [2024-11-12 08:31:19,242 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] [2024-11-12 08:31:19,244 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] [2024-11-12 08:31:19,247 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] [2024-11-12 08:31:19,248 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] [2024-11-12 08:31:19,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:31:19,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:31:19,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2024-11-12 08:31:19,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2024-11-12 08:31:19,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2024-11-12 08:31:19,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2024-11-12 08:31:19,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2024-11-12 08:31:19,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2024-11-12 08:31:19,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2024-11-12 08:31:19,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2024-11-12 08:31:19,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2024-11-12 08:31:19,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2024-11-12 08:31:19,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2024-11-12 08:31:19,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2024-11-12 08:31:19,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2024-11-12 08:31:19,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2024-11-12 08:31:19,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2024-11-12 08:31:19,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2024-11-12 08:31:19,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2024-11-12 08:31:19,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2024-11-12 08:31:19,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2024-11-12 08:31:19,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2024-11-12 08:31:19,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2024-11-12 08:31:19,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2024-11-12 08:31:19,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2024-11-12 08:31:19,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2024-11-12 08:31:19,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2024-11-12 08:31:19,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2024-11-12 08:31:19,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2024-11-12 08:31:19,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2024-11-12 08:31:19,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2024-11-12 08:31:19,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2024-11-12 08:31:19,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2024-11-12 08:31:19,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2024-11-12 08:31:19,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2024-11-12 08:31:19,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2024-11-12 08:31:19,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2024-11-12 08:31:19,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2024-11-12 08:31:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2024-11-12 08:31:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2024-11-12 08:31:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2024-11-12 08:31:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2024-11-12 08:31:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2024-11-12 08:31:19,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2024-11-12 08:31:19,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2024-11-12 08:31:19,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2024-11-12 08:31:19,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2024-11-12 08:31:19,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2024-11-12 08:31:19,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2024-11-12 08:31:19,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2024-11-12 08:31:19,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2024-11-12 08:31:19,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2024-11-12 08:31:19,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2024-11-12 08:31:19,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2024-11-12 08:31:19,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2024-11-12 08:31:19,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2024-11-12 08:31:19,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2024-11-12 08:31:19,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2024-11-12 08:31:19,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2024-11-12 08:31:19,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2024-11-12 08:31:19,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2024-11-12 08:31:19,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2024-11-12 08:31:19,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2024-11-12 08:31:19,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2024-11-12 08:31:19,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2024-11-12 08:31:19,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2024-11-12 08:31:19,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2024-11-12 08:31:19,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2024-11-12 08:31:19,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2024-11-12 08:31:19,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2024-11-12 08:31:19,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2024-11-12 08:31:19,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2024-11-12 08:31:19,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2024-11-12 08:31:19,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2024-11-12 08:31:19,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2024-11-12 08:31:19,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2024-11-12 08:31:19,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2024-11-12 08:31:19,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2024-11-12 08:31:19,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2024-11-12 08:31:19,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2024-11-12 08:31:19,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2024-11-12 08:31:19,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2024-11-12 08:31:19,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2024-11-12 08:31:19,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2024-11-12 08:31:19,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2024-11-12 08:31:19,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2024-11-12 08:31:19,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2024-11-12 08:31:19,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2024-11-12 08:31:19,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2024-11-12 08:31:19,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2024-11-12 08:31:19,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2024-11-12 08:31:19,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2024-11-12 08:31:19,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2024-11-12 08:31:19,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2024-11-12 08:31:19,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2024-11-12 08:31:19,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2024-11-12 08:31:19,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2024-11-12 08:31:19,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2024-11-12 08:31:19,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2024-11-12 08:31:19,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2024-11-12 08:31:19,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2024-11-12 08:31:19,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2024-11-12 08:31:19,424 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] [2024-11-12 08:31:19,425 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] [2024-11-12 08:31:19,433 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] [2024-11-12 08:31:19,433 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] [2024-11-12 08:31:19,434 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] [2024-11-12 08:31:19,435 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] [2024-11-12 08:31:19,436 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] [2024-11-12 08:31:19,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:31:19,748 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:31:19,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19 WrapperNode [2024-11-12 08:31:19,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:31:19,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:31:19,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:31:19,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:31:19,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:19,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:19,944 INFO L138 Inliner]: procedures = 914, calls = 950, calls flagged for inlining = 815, calls inlined = 57, statements flattened = 657 [2024-11-12 08:31:19,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:31:19,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:31:19,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:31:19,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:31:19,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:19,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:19,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,001 INFO L175 MemorySlicer]: Split 65 memory accesses to 5 slices as follows [2, 8, 44, 2, 9]. 68 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 4, 6, 0, 5]. The 20 writes are split as follows [0, 3, 14, 1, 2]. [2024-11-12 08:31:20,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:31:20,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:31:20,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:31:20,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:31:20,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (1/1) ... [2024-11-12 08:31:20,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:31:20,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:31:20,134 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) [2024-11-12 08:31:20,136 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 [2024-11-12 08:31:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:31:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:31:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:31:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:31:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:31:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:31:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:31:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:31:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-12 08:31:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-12 08:31:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:31:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:31:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:31:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:31:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:31:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:31:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:31:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:31:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:31:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:31:20,190 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 08:31:20,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:31:20,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:31:21,292 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 08:31:21,292 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:31:21,748 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:31:21,748 INFO L316 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-12 08:31:21,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:31:21 BoogieIcfgContainer [2024-11-12 08:31:21,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:31:21,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:31:21,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:31:21,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:31:21,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:31:17" (1/3) ... [2024-11-12 08:31:21,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576f2e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:31:21, skipping insertion in model container [2024-11-12 08:31:21,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:31:19" (2/3) ... [2024-11-12 08:31:21,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576f2e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:31:21, skipping insertion in model container [2024-11-12 08:31:21,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:31:21" (3/3) ... [2024-11-12 08:31:21,760 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_full.i [2024-11-12 08:31:21,808 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:31:21,808 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-12 08:31:21,808 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 08:31:21,907 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 08:31:21,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 179 transitions, 365 flow [2024-11-12 08:31:22,030 INFO L124 PetriNetUnfolderBase]: 96/308 cut-off events. [2024-11-12 08:31:22,034 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 08:31:22,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 308 events. 96/308 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 912 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 153. Up to 6 conditions per place. [2024-11-12 08:31:22,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 179 transitions, 365 flow [2024-11-12 08:31:22,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 179 transitions, 365 flow [2024-11-12 08:31:22,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:31:22,070 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;@580f88d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:31:22,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 08:31:22,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 08:31:22,075 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2024-11-12 08:31:22,075 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:31:22,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:22,076 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 08:31:22,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:22,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1883148, now seen corresponding path program 1 times [2024-11-12 08:31:22,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964957739] [2024-11-12 08:31:22,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964957739] [2024-11-12 08:31:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964957739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:22,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:22,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:31:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934065749] [2024-11-12 08:31:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:22,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:22,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:22,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 179 [2024-11-12 08:31:22,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 179 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:22,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:22,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 179 [2024-11-12 08:31:22,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:23,130 INFO L124 PetriNetUnfolderBase]: 1229/2740 cut-off events. [2024-11-12 08:31:23,131 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 08:31:23,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4974 conditions, 2740 events. 1229/2740 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 15159 event pairs, 864 based on Foata normal form. 510/2776 useless extension candidates. Maximal degree in co-relation 4778. Up to 2220 conditions per place. [2024-11-12 08:31:23,150 INFO L140 encePairwiseOnDemand]: 136/179 looper letters, 91 selfloop transitions, 2 changer transitions 5/136 dead transitions. [2024-11-12 08:31:23,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 469 flow [2024-11-12 08:31:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-12 08:31:23,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48789571694599626 [2024-11-12 08:31:23,167 INFO L175 Difference]: Start difference. First operand has 128 places, 179 transitions, 365 flow. Second operand 3 states and 262 transitions. [2024-11-12 08:31:23,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 469 flow [2024-11-12 08:31:23,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 08:31:23,174 INFO L231 Difference]: Finished difference. Result has 128 places, 131 transitions, 273 flow [2024-11-12 08:31:23,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=128, PETRI_TRANSITIONS=131} [2024-11-12 08:31:23,181 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 0 predicate places. [2024-11-12 08:31:23,182 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 131 transitions, 273 flow [2024-11-12 08:31:23,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:23,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:23,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 08:31:23,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:31:23,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:23,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1809846304, now seen corresponding path program 1 times [2024-11-12 08:31:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217388031] [2024-11-12 08:31:23,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:23,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:23,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217388031] [2024-11-12 08:31:23,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217388031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:23,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:23,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:31:23,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401860789] [2024-11-12 08:31:23,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:23,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:23,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:23,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 179 [2024-11-12 08:31:23,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 131 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:23,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:23,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 179 [2024-11-12 08:31:23,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:23,785 INFO L124 PetriNetUnfolderBase]: 1189/2608 cut-off events. [2024-11-12 08:31:23,785 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 08:31:23,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4769 conditions, 2608 events. 1189/2608 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14378 event pairs, 832 based on Foata normal form. 1/2144 useless extension candidates. Maximal degree in co-relation 4739. Up to 2144 conditions per place. [2024-11-12 08:31:23,796 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 91 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2024-11-12 08:31:23,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 129 transitions, 455 flow [2024-11-12 08:31:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-12 08:31:23,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.409683426443203 [2024-11-12 08:31:23,801 INFO L175 Difference]: Start difference. First operand has 128 places, 131 transitions, 273 flow. Second operand 3 states and 220 transitions. [2024-11-12 08:31:23,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 129 transitions, 455 flow [2024-11-12 08:31:23,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 08:31:23,804 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 269 flow [2024-11-12 08:31:23,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=121, PETRI_TRANSITIONS=129} [2024-11-12 08:31:23,806 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, -7 predicate places. [2024-11-12 08:31:23,806 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 269 flow [2024-11-12 08:31:23,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:23,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:23,807 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:23,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:31:23,808 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:23,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:23,811 INFO L85 PathProgramCache]: Analyzing trace with hash -786944721, now seen corresponding path program 1 times [2024-11-12 08:31:23,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:23,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219578429] [2024-11-12 08:31:23,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:23,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 08:31:23,883 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 08:31:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 08:31:23,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 08:31:23,980 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 08:31:23,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-12 08:31:23,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-12 08:31:23,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-12 08:31:23,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-12 08:31:23,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-12 08:31:23,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-12 08:31:23,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-12 08:31:23,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-12 08:31:23,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 08:31:23,988 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-12 08:31:23,995 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 08:31:23,995 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 08:31:24,081 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 08:31:24,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 202 transitions, 420 flow [2024-11-12 08:31:24,129 INFO L124 PetriNetUnfolderBase]: 187/592 cut-off events. [2024-11-12 08:31:24,130 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 08:31:24,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 592 events. 187/592 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2450 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 310. Up to 12 conditions per place. [2024-11-12 08:31:24,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 202 transitions, 420 flow [2024-11-12 08:31:24,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 202 transitions, 420 flow [2024-11-12 08:31:24,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:31:24,139 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;@580f88d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:31:24,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 08:31:24,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 08:31:24,141 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2024-11-12 08:31:24,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:31:24,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:24,141 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 08:31:24,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:24,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2083734, now seen corresponding path program 1 times [2024-11-12 08:31:24,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:24,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428817265] [2024-11-12 08:31:24,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:24,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:24,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428817265] [2024-11-12 08:31:24,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428817265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:24,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:24,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:31:24,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286811385] [2024-11-12 08:31:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:24,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:24,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:24,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:24,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:24,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 202 [2024-11-12 08:31:24,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 202 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:24,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:24,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 202 [2024-11-12 08:31:24,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:31,236 INFO L124 PetriNetUnfolderBase]: 41903/67153 cut-off events. [2024-11-12 08:31:31,237 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-12 08:31:31,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126961 conditions, 67153 events. 41903/67153 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 479307 event pairs, 31376 based on Foata normal form. 9076/64008 useless extension candidates. Maximal degree in co-relation 97462. Up to 59707 conditions per place. [2024-11-12 08:31:31,643 INFO L140 encePairwiseOnDemand]: 158/202 looper letters, 113 selfloop transitions, 2 changer transitions 5/158 dead transitions. [2024-11-12 08:31:31,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 158 transitions, 566 flow [2024-11-12 08:31:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2024-11-12 08:31:31,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47029702970297027 [2024-11-12 08:31:31,648 INFO L175 Difference]: Start difference. First operand has 147 places, 202 transitions, 420 flow. Second operand 3 states and 285 transitions. [2024-11-12 08:31:31,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 158 transitions, 566 flow [2024-11-12 08:31:31,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 158 transitions, 566 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 08:31:31,658 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 326 flow [2024-11-12 08:31:31,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=147, PETRI_TRANSITIONS=153} [2024-11-12 08:31:31,661 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-12 08:31:31,661 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 326 flow [2024-11-12 08:31:31,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:31,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:31,662 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 08:31:31,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 08:31:31,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:31,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:31,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2002615914, now seen corresponding path program 1 times [2024-11-12 08:31:31,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:31,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342238145] [2024-11-12 08:31:31,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:31,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342238145] [2024-11-12 08:31:31,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342238145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:31,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:31,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:31:31,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329585478] [2024-11-12 08:31:31,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:31,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:31,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:31,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:31,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 202 [2024-11-12 08:31:31,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 153 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:31,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:31,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 202 [2024-11-12 08:31:31,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:37,775 INFO L124 PetriNetUnfolderBase]: 40463/64091 cut-off events. [2024-11-12 08:31:37,776 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-12 08:31:38,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121814 conditions, 64091 events. 40463/64091 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 450606 event pairs, 30224 based on Foata normal form. 1/52160 useless extension candidates. Maximal degree in co-relation 121783. Up to 57619 conditions per place. [2024-11-12 08:31:38,282 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 113 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2024-11-12 08:31:38,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 552 flow [2024-11-12 08:31:38,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-11-12 08:31:38,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39933993399339934 [2024-11-12 08:31:38,285 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 326 flow. Second operand 3 states and 242 transitions. [2024-11-12 08:31:38,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 151 transitions, 552 flow [2024-11-12 08:31:38,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 151 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 08:31:38,290 INFO L231 Difference]: Finished difference. Result has 140 places, 151 transitions, 322 flow [2024-11-12 08:31:38,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=140, PETRI_TRANSITIONS=151} [2024-11-12 08:31:38,291 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2024-11-12 08:31:38,292 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 151 transitions, 322 flow [2024-11-12 08:31:38,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-11-12 08:31:38,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:38,293 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:38,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 08:31:38,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:38,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2118521146, now seen corresponding path program 1 times [2024-11-12 08:31:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416997015] [2024-11-12 08:31:38,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:38,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416997015] [2024-11-12 08:31:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416997015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:38,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:38,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:31:38,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273118934] [2024-11-12 08:31:38,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:38,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:31:38,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:38,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:31:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:31:38,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:38,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 151 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-11-12 08:31:38,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:38,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:38,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:44,760 INFO L124 PetriNetUnfolderBase]: 39765/66688 cut-off events. [2024-11-12 08:31:44,761 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-12 08:31:44,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123424 conditions, 66688 events. 39765/66688 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 520816 event pairs, 1 based on Foata normal form. 0/54660 useless extension candidates. Maximal degree in co-relation 123393. Up to 54878 conditions per place. [2024-11-12 08:31:45,077 INFO L140 encePairwiseOnDemand]: 198/202 looper letters, 213 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2024-11-12 08:31:45,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 252 transitions, 956 flow [2024-11-12 08:31:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:31:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 08:31:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 435 transitions. [2024-11-12 08:31:45,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4306930693069307 [2024-11-12 08:31:45,079 INFO L175 Difference]: Start difference. First operand has 140 places, 151 transitions, 322 flow. Second operand 5 states and 435 transitions. [2024-11-12 08:31:45,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 252 transitions, 956 flow [2024-11-12 08:31:45,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 252 transitions, 948 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 08:31:45,088 INFO L231 Difference]: Finished difference. Result has 140 places, 151 transitions, 324 flow [2024-11-12 08:31:45,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=140, PETRI_TRANSITIONS=151} [2024-11-12 08:31:45,092 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2024-11-12 08:31:45,093 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 151 transitions, 324 flow [2024-11-12 08:31:45,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-11-12 08:31:45,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:45,093 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:45,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 08:31:45,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:45,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash 472869315, now seen corresponding path program 1 times [2024-11-12 08:31:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:45,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688196353] [2024-11-12 08:31:45,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:45,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:45,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688196353] [2024-11-12 08:31:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688196353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:45,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:45,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:31:45,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436131174] [2024-11-12 08:31:45,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:45,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:45,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:45,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 151 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-12 08:31:45,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:45,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:45,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:46,650 INFO L124 PetriNetUnfolderBase]: 4813/8905 cut-off events. [2024-11-12 08:31:46,651 INFO L125 PetriNetUnfolderBase]: For 1209/1209 co-relation queries the response was YES. [2024-11-12 08:31:46,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17683 conditions, 8905 events. 4813/8905 cut-off events. For 1209/1209 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 55004 event pairs, 2448 based on Foata normal form. 0/7451 useless extension candidates. Maximal degree in co-relation 10514. Up to 5805 conditions per place. [2024-11-12 08:31:46,688 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 158 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-11-12 08:31:46,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 195 transitions, 736 flow [2024-11-12 08:31:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-11-12 08:31:46,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4768976897689769 [2024-11-12 08:31:46,690 INFO L175 Difference]: Start difference. First operand has 140 places, 151 transitions, 324 flow. Second operand 3 states and 289 transitions. [2024-11-12 08:31:46,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 195 transitions, 736 flow [2024-11-12 08:31:46,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 195 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:31:46,697 INFO L231 Difference]: Finished difference. Result has 142 places, 152 transitions, 334 flow [2024-11-12 08:31:46,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=142, PETRI_TRANSITIONS=152} [2024-11-12 08:31:46,700 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -5 predicate places. [2024-11-12 08:31:46,700 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 152 transitions, 334 flow [2024-11-12 08:31:46,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-12 08:31:46,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:46,701 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:46,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 08:31:46,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:46,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:46,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1098103472, now seen corresponding path program 1 times [2024-11-12 08:31:46,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:46,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045216370] [2024-11-12 08:31:46,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:46,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045216370] [2024-11-12 08:31:46,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045216370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:46,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:46,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:31:46,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815751135] [2024-11-12 08:31:46,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:46,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:46,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:46,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:46,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 152 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-12 08:31:46,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:46,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:46,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:48,266 INFO L124 PetriNetUnfolderBase]: 8074/13975 cut-off events. [2024-11-12 08:31:48,266 INFO L125 PetriNetUnfolderBase]: For 5091/5091 co-relation queries the response was YES. [2024-11-12 08:31:48,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28819 conditions, 13975 events. 8074/13975 cut-off events. For 5091/5091 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 85830 event pairs, 3877 based on Foata normal form. 0/11826 useless extension candidates. Maximal degree in co-relation 13764. Up to 7817 conditions per place. [2024-11-12 08:31:48,315 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 217 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2024-11-12 08:31:48,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 254 transitions, 997 flow [2024-11-12 08:31:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:48,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-12 08:31:48,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.570957095709571 [2024-11-12 08:31:48,317 INFO L175 Difference]: Start difference. First operand has 142 places, 152 transitions, 334 flow. Second operand 3 states and 346 transitions. [2024-11-12 08:31:48,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 254 transitions, 997 flow [2024-11-12 08:31:48,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 254 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:31:48,330 INFO L231 Difference]: Finished difference. Result has 144 places, 153 transitions, 344 flow [2024-11-12 08:31:48,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=144, PETRI_TRANSITIONS=153} [2024-11-12 08:31:48,331 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -3 predicate places. [2024-11-12 08:31:48,331 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 153 transitions, 344 flow [2024-11-12 08:31:48,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-12 08:31:48,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:48,333 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:48,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 08:31:48,333 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:48,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:48,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1358518683, now seen corresponding path program 1 times [2024-11-12 08:31:48,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:48,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721670157] [2024-11-12 08:31:48,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:48,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:48,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721670157] [2024-11-12 08:31:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721670157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:31:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002663870] [2024-11-12 08:31:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:48,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:31:48,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:31:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:31:48,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:48,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 153 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2024-11-12 08:31:48,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:48,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:48,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:50,334 INFO L124 PetriNetUnfolderBase]: 13216/22288 cut-off events. [2024-11-12 08:31:50,334 INFO L125 PetriNetUnfolderBase]: For 7418/7418 co-relation queries the response was YES. [2024-11-12 08:31:50,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47306 conditions, 22288 events. 13216/22288 cut-off events. For 7418/7418 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 140293 event pairs, 6104 based on Foata normal form. 0/19164 useless extension candidates. Maximal degree in co-relation 35894. Up to 12908 conditions per place. [2024-11-12 08:31:50,481 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 216 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2024-11-12 08:31:50,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 253 transitions, 1004 flow [2024-11-12 08:31:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:31:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:31:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-12 08:31:50,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5676567656765676 [2024-11-12 08:31:50,483 INFO L175 Difference]: Start difference. First operand has 144 places, 153 transitions, 344 flow. Second operand 3 states and 344 transitions. [2024-11-12 08:31:50,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 253 transitions, 1004 flow [2024-11-12 08:31:50,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 253 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:31:50,499 INFO L231 Difference]: Finished difference. Result has 146 places, 154 transitions, 354 flow [2024-11-12 08:31:50,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=146, PETRI_TRANSITIONS=154} [2024-11-12 08:31:50,502 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -1 predicate places. [2024-11-12 08:31:50,502 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 154 transitions, 354 flow [2024-11-12 08:31:50,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2024-11-12 08:31:50,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:50,502 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:50,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 08:31:50,503 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:50,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash 516057992, now seen corresponding path program 1 times [2024-11-12 08:31:50,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:50,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593396266] [2024-11-12 08:31:50,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593396266] [2024-11-12 08:31:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593396266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:31:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171774426] [2024-11-12 08:31:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:50,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:31:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:31:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:31:50,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:50,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 154 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-11-12 08:31:50,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:50,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:31:53,278 INFO L124 PetriNetUnfolderBase]: 15076/25705 cut-off events. [2024-11-12 08:31:53,279 INFO L125 PetriNetUnfolderBase]: For 8895/8895 co-relation queries the response was YES. [2024-11-12 08:31:53,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55121 conditions, 25705 events. 15076/25705 cut-off events. For 8895/8895 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 167674 event pairs, 10169 based on Foata normal form. 0/22500 useless extension candidates. Maximal degree in co-relation 42855. Up to 20735 conditions per place. [2024-11-12 08:31:53,413 INFO L140 encePairwiseOnDemand]: 197/202 looper letters, 288 selfloop transitions, 4 changer transitions 0/327 dead transitions. [2024-11-12 08:31:53,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 327 transitions, 1342 flow [2024-11-12 08:31:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 08:31:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 08:31:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2024-11-12 08:31:53,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5655940594059405 [2024-11-12 08:31:53,415 INFO L175 Difference]: Start difference. First operand has 146 places, 154 transitions, 354 flow. Second operand 4 states and 457 transitions. [2024-11-12 08:31:53,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 327 transitions, 1342 flow [2024-11-12 08:31:53,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 327 transitions, 1336 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:31:53,428 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 380 flow [2024-11-12 08:31:53,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=380, PETRI_PLACES=150, PETRI_TRANSITIONS=157} [2024-11-12 08:31:53,429 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 3 predicate places. [2024-11-12 08:31:53,430 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 380 flow [2024-11-12 08:31:53,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-11-12 08:31:53,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:31:53,430 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:31:53,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 08:31:53,430 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-12 08:31:53,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:31:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash 966211809, now seen corresponding path program 1 times [2024-11-12 08:31:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:31:53,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666417064] [2024-11-12 08:31:53,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:31:53,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:31:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:31:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:31:53,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:31:53,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666417064] [2024-11-12 08:31:53,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666417064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:31:53,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:31:53,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:31:53,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578169707] [2024-11-12 08:31:53,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:31:53,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:31:53,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:31:53,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:31:53,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:31:53,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-12 08:31:53,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 157 transitions, 380 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-11-12 08:31:53,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:31:53,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-12 08:31:53,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand