./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:56:01,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:56:01,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:56:01,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:56:01,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:56:01,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:56:01,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:56:01,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:56:01,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:56:01,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:56:01,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:56:01,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:56:01,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:56:01,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:56:01,485 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:56:01,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:56:01,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:56:01,486 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:56:01,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:56:01,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:56:01,487 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:56:01,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:56:01,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:56:01,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:56:01,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:56:01,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:56:01,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:56:01,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:56:01,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:56:01,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:56:01,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:56:01,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:56:01,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:56:01,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:56:01,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:56:01,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:56:01,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:56:01,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:56:01,491 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:56:01,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:56:01,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:56:01,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:56:01,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe [2024-11-22 13:56:01,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:56:01,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:56:01,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:56:01,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:56:01,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:56:01,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-22 13:56:03,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:56:03,571 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:56:03,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-11-22 13:56:03,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0968ae2b/4a1d6d5b1db1437096ebdf923efed9c3/FLAG3d0511c13 [2024-11-22 13:56:03,637 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0968ae2b/4a1d6d5b1db1437096ebdf923efed9c3 [2024-11-22 13:56:03,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:56:03,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:56:03,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:56:03,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:56:03,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:56:03,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:03" (1/1) ... [2024-11-22 13:56:03,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486d24a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03, skipping insertion in model container [2024-11-22 13:56:03,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:03" (1/1) ... [2024-11-22 13:56:03,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:56:05,330 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] [2024-11-22 13:56:05,333 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i[193693,193706] [2024-11-22 13:56:05,378 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] [2024-11-22 13:56:05,379 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] [2024-11-22 13:56:05,379 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] [2024-11-22 13:56:05,380 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] [2024-11-22 13:56:05,382 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] [2024-11-22 13:56:05,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:56:05,396 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:56:05,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2024-11-22 13:56:05,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2024-11-22 13:56:05,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2024-11-22 13:56:05,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2024-11-22 13:56:05,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2024-11-22 13:56:05,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2024-11-22 13:56:05,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2024-11-22 13:56:05,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2024-11-22 13:56:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2024-11-22 13:56:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2024-11-22 13:56:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2024-11-22 13:56:05,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2024-11-22 13:56:05,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2024-11-22 13:56:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2024-11-22 13:56:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2024-11-22 13:56:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2024-11-22 13:56:05,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2024-11-22 13:56:05,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2024-11-22 13:56:05,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2024-11-22 13:56:05,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2024-11-22 13:56:05,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2024-11-22 13:56:05,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2024-11-22 13:56:05,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2024-11-22 13:56:05,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2024-11-22 13:56:05,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2024-11-22 13:56:05,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2024-11-22 13:56:05,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2024-11-22 13:56:05,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2024-11-22 13:56:05,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2024-11-22 13:56:05,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2024-11-22 13:56:05,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2024-11-22 13:56:05,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2024-11-22 13:56:05,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2024-11-22 13:56:05,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2024-11-22 13:56:05,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2024-11-22 13:56:05,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2024-11-22 13:56:05,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2024-11-22 13:56:05,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2024-11-22 13:56:05,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2024-11-22 13:56:05,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2024-11-22 13:56:05,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2024-11-22 13:56:05,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2024-11-22 13:56:05,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2024-11-22 13:56:05,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2024-11-22 13:56:05,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2024-11-22 13:56:05,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2024-11-22 13:56:05,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2024-11-22 13:56:05,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2024-11-22 13:56:05,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2024-11-22 13:56:05,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2024-11-22 13:56:05,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2024-11-22 13:56:05,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2024-11-22 13:56:05,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2024-11-22 13:56:05,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2024-11-22 13:56:05,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2024-11-22 13:56:05,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2024-11-22 13:56:05,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2024-11-22 13:56:05,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2024-11-22 13:56:05,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2024-11-22 13:56:05,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2024-11-22 13:56:05,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2024-11-22 13:56:05,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2024-11-22 13:56:05,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2024-11-22 13:56:05,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2024-11-22 13:56:05,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2024-11-22 13:56:05,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2024-11-22 13:56:05,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2024-11-22 13:56:05,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2024-11-22 13:56:05,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2024-11-22 13:56:05,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2024-11-22 13:56:05,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2024-11-22 13:56:05,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2024-11-22 13:56:05,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2024-11-22 13:56:05,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2024-11-22 13:56:05,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2024-11-22 13:56:05,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2024-11-22 13:56:05,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2024-11-22 13:56:05,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2024-11-22 13:56:05,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2024-11-22 13:56:05,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2024-11-22 13:56:05,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2024-11-22 13:56:05,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2024-11-22 13:56:05,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2024-11-22 13:56:05,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2024-11-22 13:56:05,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2024-11-22 13:56:05,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2024-11-22 13:56:05,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2024-11-22 13:56:05,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2024-11-22 13:56:05,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2024-11-22 13:56:05,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2024-11-22 13:56:05,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2024-11-22 13:56:05,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2024-11-22 13:56:05,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2024-11-22 13:56:05,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2024-11-22 13:56:05,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2024-11-22 13:56:05,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2024-11-22 13:56:05,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2024-11-22 13:56:05,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2024-11-22 13:56:05,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2024-11-22 13:56:05,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2024-11-22 13:56:05,593 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] [2024-11-22 13:56:05,594 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] [2024-11-22 13:56:05,606 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] [2024-11-22 13:56:05,606 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] [2024-11-22 13:56:05,607 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] [2024-11-22 13:56:05,607 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] [2024-11-22 13:56:05,607 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] [2024-11-22 13:56:05,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:56:06,110 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:56:06,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06 WrapperNode [2024-11-22 13:56:06,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:56:06,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:56:06,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:56:06,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:56:06,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,323 INFO L138 Inliner]: procedures = 914, calls = 950, calls flagged for inlining = 815, calls inlined = 57, statements flattened = 657 [2024-11-22 13:56:06,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:56:06,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:56:06,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:56:06,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:56:06,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,382 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]. [2024-11-22 13:56:06,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:56:06,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:56:06,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:56:06,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:56:06,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (1/1) ... [2024-11-22 13:56:06,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:56:06,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:56:06,490 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) [2024-11-22 13:56:06,492 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 [2024-11-22 13:56:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:56:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:56:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 13:56:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:56:06,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 13:56:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 13:56:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-22 13:56:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 13:56:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 13:56:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 13:56:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 13:56:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:56:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:56:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 13:56:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 13:56:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 13:56:06,549 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 13:56:06,751 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:56:06,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:56:07,604 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 13:56:07,604 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:56:08,078 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:56:08,079 INFO L316 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-22 13:56:08,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:08 BoogieIcfgContainer [2024-11-22 13:56:08,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:56:08,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:56:08,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:56:08,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:56:08,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:03" (1/3) ... [2024-11-22 13:56:08,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50af519f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:08, skipping insertion in model container [2024-11-22 13:56:08,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:06" (2/3) ... [2024-11-22 13:56:08,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50af519f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:08, skipping insertion in model container [2024-11-22 13:56:08,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:08" (3/3) ... [2024-11-22 13:56:08,088 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_full.i [2024-11-22 13:56:08,105 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:56:08,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-22 13:56:08,106 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 13:56:08,221 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 13:56:08,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 179 transitions, 365 flow [2024-11-22 13:56:08,362 INFO L124 PetriNetUnfolderBase]: 96/308 cut-off events. [2024-11-22 13:56:08,365 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 13:56:08,374 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. [2024-11-22 13:56:08,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 179 transitions, 365 flow [2024-11-22 13:56:08,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 179 transitions, 365 flow [2024-11-22 13:56:08,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:56:08,396 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;@55f6561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:56:08,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 13:56:08,401 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:56:08,401 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2024-11-22 13:56:08,401 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:56:08,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:08,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 13:56:08,403 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)] === [2024-11-22 13:56:08,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:08,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1883148, now seen corresponding path program 1 times [2024-11-22 13:56:08,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:08,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283567846] [2024-11-22 13:56:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:08,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:08,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:08,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283567846] [2024-11-22 13:56:08,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283567846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:08,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:08,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 13:56:08,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244632997] [2024-11-22 13:56:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:08,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:08,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:08,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 179 [2024-11-22 13:56:08,752 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) [2024-11-22 13:56:08,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:08,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 179 [2024-11-22 13:56:08,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:09,403 INFO L124 PetriNetUnfolderBase]: 1229/2740 cut-off events. [2024-11-22 13:56:09,404 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 13:56:09,414 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. [2024-11-22 13:56:09,427 INFO L140 encePairwiseOnDemand]: 136/179 looper letters, 91 selfloop transitions, 2 changer transitions 5/136 dead transitions. [2024-11-22 13:56:09,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 469 flow [2024-11-22 13:56:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-22 13:56:09,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48789571694599626 [2024-11-22 13:56:09,442 INFO L175 Difference]: Start difference. First operand has 128 places, 179 transitions, 365 flow. Second operand 3 states and 262 transitions. [2024-11-22 13:56:09,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 469 flow [2024-11-22 13:56:09,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 13:56:09,450 INFO L231 Difference]: Finished difference. Result has 128 places, 131 transitions, 273 flow [2024-11-22 13:56:09,452 INFO L260 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} [2024-11-22 13:56:09,457 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, 0 predicate places. [2024-11-22 13:56:09,457 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 131 transitions, 273 flow [2024-11-22 13:56:09,457 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) [2024-11-22 13:56:09,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:09,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 13:56:09,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 13:56:09,458 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)] === [2024-11-22 13:56:09,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1809846304, now seen corresponding path program 1 times [2024-11-22 13:56:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678197461] [2024-11-22 13:56:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:09,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:09,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678197461] [2024-11-22 13:56:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678197461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:09,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 13:56:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655446958] [2024-11-22 13:56:09,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:09,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:09,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 179 [2024-11-22 13:56:09,632 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) [2024-11-22 13:56:09,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:09,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 179 [2024-11-22 13:56:09,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:10,160 INFO L124 PetriNetUnfolderBase]: 1189/2608 cut-off events. [2024-11-22 13:56:10,160 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 13:56:10,164 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. [2024-11-22 13:56:10,174 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 91 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2024-11-22 13:56:10,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 129 transitions, 455 flow [2024-11-22 13:56:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-22 13:56:10,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.409683426443203 [2024-11-22 13:56:10,178 INFO L175 Difference]: Start difference. First operand has 128 places, 131 transitions, 273 flow. Second operand 3 states and 220 transitions. [2024-11-22 13:56:10,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 129 transitions, 455 flow [2024-11-22 13:56:10,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:56:10,185 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 269 flow [2024-11-22 13:56:10,185 INFO L260 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} [2024-11-22 13:56:10,186 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, -7 predicate places. [2024-11-22 13:56:10,186 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 269 flow [2024-11-22 13:56:10,186 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) [2024-11-22 13:56:10,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:10,187 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:10,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 13:56:10,189 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)] === [2024-11-22 13:56:10,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:10,190 INFO L85 PathProgramCache]: Analyzing trace with hash -786944721, now seen corresponding path program 1 times [2024-11-22 13:56:10,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:10,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280852374] [2024-11-22 13:56:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 13:56:10,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 13:56:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 13:56:10,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 13:56:10,399 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 13:56:10,400 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-22 13:56:10,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-22 13:56:10,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-22 13:56:10,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-22 13:56:10,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-22 13:56:10,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-22 13:56:10,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-22 13:56:10,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-22 13:56:10,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:56:10,404 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-22 13:56:10,406 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 13:56:10,406 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 13:56:10,486 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 13:56:10,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 202 transitions, 420 flow [2024-11-22 13:56:10,537 INFO L124 PetriNetUnfolderBase]: 187/592 cut-off events. [2024-11-22 13:56:10,538 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 13:56:10,540 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. [2024-11-22 13:56:10,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 202 transitions, 420 flow [2024-11-22 13:56:10,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 202 transitions, 420 flow [2024-11-22 13:56:10,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:56:10,551 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;@55f6561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:56:10,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 13:56:10,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:56:10,552 INFO L124 PetriNetUnfolderBase]: 3/7 cut-off events. [2024-11-22 13:56:10,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:56:10,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:10,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 13:56:10,553 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)] === [2024-11-22 13:56:10,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2083734, now seen corresponding path program 1 times [2024-11-22 13:56:10,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:10,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178004626] [2024-11-22 13:56:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:10,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:10,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:10,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178004626] [2024-11-22 13:56:10,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178004626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:10,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:10,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 13:56:10,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405797901] [2024-11-22 13:56:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:10,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:10,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 202 [2024-11-22 13:56:10,608 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) [2024-11-22 13:56:10,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:10,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 202 [2024-11-22 13:56:10,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:18,096 INFO L124 PetriNetUnfolderBase]: 41903/67153 cut-off events. [2024-11-22 13:56:18,096 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-22 13:56:18,180 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. [2024-11-22 13:56:18,395 INFO L140 encePairwiseOnDemand]: 158/202 looper letters, 113 selfloop transitions, 2 changer transitions 5/158 dead transitions. [2024-11-22 13:56:18,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 158 transitions, 566 flow [2024-11-22 13:56:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:18,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2024-11-22 13:56:18,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47029702970297027 [2024-11-22 13:56:18,399 INFO L175 Difference]: Start difference. First operand has 147 places, 202 transitions, 420 flow. Second operand 3 states and 285 transitions. [2024-11-22 13:56:18,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 158 transitions, 566 flow [2024-11-22 13:56:18,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 158 transitions, 566 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 13:56:18,404 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 326 flow [2024-11-22 13:56:18,404 INFO L260 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} [2024-11-22 13:56:18,407 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-22 13:56:18,407 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 326 flow [2024-11-22 13:56:18,408 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) [2024-11-22 13:56:18,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:18,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 13:56:18,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:56:18,408 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)] === [2024-11-22 13:56:18,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2002615914, now seen corresponding path program 1 times [2024-11-22 13:56:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:18,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701767133] [2024-11-22 13:56:18,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:18,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:18,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:18,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701767133] [2024-11-22 13:56:18,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701767133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:18,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 13:56:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652737535] [2024-11-22 13:56:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:18,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:18,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:18,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:18,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:18,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 202 [2024-11-22 13:56:18,472 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) [2024-11-22 13:56:18,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:18,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 202 [2024-11-22 13:56:18,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:24,458 INFO L124 PetriNetUnfolderBase]: 40463/64091 cut-off events. [2024-11-22 13:56:24,458 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-22 13:56:24,537 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. [2024-11-22 13:56:24,779 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 113 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2024-11-22 13:56:24,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 552 flow [2024-11-22 13:56:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-11-22 13:56:24,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39933993399339934 [2024-11-22 13:56:24,783 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 326 flow. Second operand 3 states and 242 transitions. [2024-11-22 13:56:24,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 151 transitions, 552 flow [2024-11-22 13:56:24,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 151 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:56:24,788 INFO L231 Difference]: Finished difference. Result has 140 places, 151 transitions, 322 flow [2024-11-22 13:56:24,789 INFO L260 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} [2024-11-22 13:56:24,789 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2024-11-22 13:56:24,789 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 151 transitions, 322 flow [2024-11-22 13:56:24,790 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) [2024-11-22 13:56:24,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:24,790 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:24,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:56:24,791 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)] === [2024-11-22 13:56:24,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:24,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2118521146, now seen corresponding path program 1 times [2024-11-22 13:56:24,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599590670] [2024-11-22 13:56:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:24,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:25,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:25,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599590670] [2024-11-22 13:56:25,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599590670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:56:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47216832] [2024-11-22 13:56:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:25,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:56:25,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:56:25,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:56:25,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 13:56:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:25,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 13:56:25,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:56:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:25,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:56:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:56:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47216832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 13:56:25,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 13:56:25,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-22 13:56:25,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271228899] [2024-11-22 13:56:25,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 13:56:25,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:56:25,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:56:25,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:56:25,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:25,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 151 transitions, 322 flow. Second operand has 9 states, 9 states have (on average 46.0) internal successors, (414), 9 states have internal predecessors, (414), 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) [2024-11-22 13:56:25,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:25,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:25,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:31,119 INFO L124 PetriNetUnfolderBase]: 39765/66688 cut-off events. [2024-11-22 13:56:31,119 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-22 13:56:31,187 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. [2024-11-22 13:56:31,364 INFO L140 encePairwiseOnDemand]: 198/202 looper letters, 213 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2024-11-22 13:56:31,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 252 transitions, 956 flow [2024-11-22 13:56:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:56:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:56:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 435 transitions. [2024-11-22 13:56:31,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4306930693069307 [2024-11-22 13:56:31,367 INFO L175 Difference]: Start difference. First operand has 140 places, 151 transitions, 322 flow. Second operand 5 states and 435 transitions. [2024-11-22 13:56:31,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 252 transitions, 956 flow [2024-11-22 13:56:31,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 252 transitions, 948 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 13:56:31,376 INFO L231 Difference]: Finished difference. Result has 140 places, 151 transitions, 324 flow [2024-11-22 13:56:31,377 INFO L260 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} [2024-11-22 13:56:31,378 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2024-11-22 13:56:31,378 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 151 transitions, 324 flow [2024-11-22 13:56:31,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.0) internal successors, (414), 9 states have internal predecessors, (414), 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) [2024-11-22 13:56:31,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:31,381 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:31,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 13:56:31,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 13:56:31,583 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)] === [2024-11-22 13:56:31,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash 472869315, now seen corresponding path program 1 times [2024-11-22 13:56:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:31,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458284966] [2024-11-22 13:56:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:31,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 13:56:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458284966] [2024-11-22 13:56:31,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458284966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:31,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:31,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:56:31,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058633603] [2024-11-22 13:56:31,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:31,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:31,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:31,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:31,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:31,746 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) [2024-11-22 13:56:31,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:31,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:31,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:32,955 INFO L124 PetriNetUnfolderBase]: 4813/8905 cut-off events. [2024-11-22 13:56:32,955 INFO L125 PetriNetUnfolderBase]: For 1204/1204 co-relation queries the response was YES. [2024-11-22 13:56:32,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17683 conditions, 8905 events. 4813/8905 cut-off events. For 1204/1204 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 54942 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. [2024-11-22 13:56:32,977 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 158 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-11-22 13:56:32,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 195 transitions, 736 flow [2024-11-22 13:56:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-11-22 13:56:32,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4768976897689769 [2024-11-22 13:56:32,979 INFO L175 Difference]: Start difference. First operand has 140 places, 151 transitions, 324 flow. Second operand 3 states and 289 transitions. [2024-11-22 13:56:32,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 195 transitions, 736 flow [2024-11-22 13:56:32,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 195 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:32,984 INFO L231 Difference]: Finished difference. Result has 142 places, 152 transitions, 334 flow [2024-11-22 13:56:32,984 INFO L260 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} [2024-11-22 13:56:32,985 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -5 predicate places. [2024-11-22 13:56:32,985 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 152 transitions, 334 flow [2024-11-22 13:56:32,985 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) [2024-11-22 13:56:32,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:32,986 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:32,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:56:32,986 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)] === [2024-11-22 13:56:32,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1098103472, now seen corresponding path program 1 times [2024-11-22 13:56:32,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:32,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001906788] [2024-11-22 13:56:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:32,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 13:56:33,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001906788] [2024-11-22 13:56:33,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001906788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:33,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:33,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:56:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200988001] [2024-11-22 13:56:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:33,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:33,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:33,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:33,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:33,094 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) [2024-11-22 13:56:33,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:33,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:33,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:34,384 INFO L124 PetriNetUnfolderBase]: 8074/13945 cut-off events. [2024-11-22 13:56:34,384 INFO L125 PetriNetUnfolderBase]: For 5081/5081 co-relation queries the response was YES. [2024-11-22 13:56:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28789 conditions, 13945 events. 8074/13945 cut-off events. For 5081/5081 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 85389 event pairs, 3875 based on Foata normal form. 0/11795 useless extension candidates. Maximal degree in co-relation 13836. Up to 7817 conditions per place. [2024-11-22 13:56:34,427 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 217 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2024-11-22 13:56:34,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 254 transitions, 997 flow [2024-11-22 13:56:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-22 13:56:34,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.570957095709571 [2024-11-22 13:56:34,429 INFO L175 Difference]: Start difference. First operand has 142 places, 152 transitions, 334 flow. Second operand 3 states and 346 transitions. [2024-11-22 13:56:34,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 254 transitions, 997 flow [2024-11-22 13:56:34,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 254 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:34,435 INFO L231 Difference]: Finished difference. Result has 144 places, 153 transitions, 344 flow [2024-11-22 13:56:34,436 INFO L260 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} [2024-11-22 13:56:34,436 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -3 predicate places. [2024-11-22 13:56:34,436 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 153 transitions, 344 flow [2024-11-22 13:56:34,437 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) [2024-11-22 13:56:34,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:34,437 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:34,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:56:34,437 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)] === [2024-11-22 13:56:34,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:34,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2081545031, now seen corresponding path program 1 times [2024-11-22 13:56:34,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:34,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580937150] [2024-11-22 13:56:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:34,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 13:56:34,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:34,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580937150] [2024-11-22 13:56:34,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580937150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:34,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:34,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:56:34,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584906291] [2024-11-22 13:56:34,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:34,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:56:34,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:56:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:56:34,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:34,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 153 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) 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) [2024-11-22 13:56:34,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:34,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:34,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:36,316 INFO L124 PetriNetUnfolderBase]: 13216/22273 cut-off events. [2024-11-22 13:56:36,317 INFO L125 PetriNetUnfolderBase]: For 7404/7404 co-relation queries the response was YES. [2024-11-22 13:56:36,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47291 conditions, 22273 events. 13216/22273 cut-off events. For 7404/7404 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 139497 event pairs, 6410 based on Foata normal form. 0/19147 useless extension candidates. Maximal degree in co-relation 35894. Up to 12908 conditions per place. [2024-11-22 13:56:36,376 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 216 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2024-11-22 13:56:36,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 253 transitions, 1004 flow [2024-11-22 13:56:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:56:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:56:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-22 13:56:36,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5676567656765676 [2024-11-22 13:56:36,378 INFO L175 Difference]: Start difference. First operand has 144 places, 153 transitions, 344 flow. Second operand 3 states and 344 transitions. [2024-11-22 13:56:36,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 253 transitions, 1004 flow [2024-11-22 13:56:36,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 253 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:36,385 INFO L231 Difference]: Finished difference. Result has 146 places, 154 transitions, 354 flow [2024-11-22 13:56:36,385 INFO L260 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} [2024-11-22 13:56:36,385 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -1 predicate places. [2024-11-22 13:56:36,385 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 154 transitions, 354 flow [2024-11-22 13:56:36,386 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) [2024-11-22 13:56:36,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:36,386 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:36,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 13:56:36,386 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)] === [2024-11-22 13:56:36,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -134776914, now seen corresponding path program 1 times [2024-11-22 13:56:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682837036] [2024-11-22 13:56:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 13:56:36,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:36,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682837036] [2024-11-22 13:56:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682837036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:36,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:36,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:56:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704504185] [2024-11-22 13:56:36,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:36,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:56:36,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:56:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:56:36,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:36,508 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) [2024-11-22 13:56:36,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:36,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:36,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:39,022 INFO L124 PetriNetUnfolderBase]: 15076/25705 cut-off events. [2024-11-22 13:56:39,022 INFO L125 PetriNetUnfolderBase]: For 8883/8883 co-relation queries the response was YES. [2024-11-22 13:56:39,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55121 conditions, 25705 events. 15076/25705 cut-off events. For 8883/8883 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 167641 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. [2024-11-22 13:56:39,112 INFO L140 encePairwiseOnDemand]: 197/202 looper letters, 288 selfloop transitions, 4 changer transitions 0/327 dead transitions. [2024-11-22 13:56:39,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 327 transitions, 1342 flow [2024-11-22 13:56:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:56:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:56:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2024-11-22 13:56:39,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5655940594059405 [2024-11-22 13:56:39,115 INFO L175 Difference]: Start difference. First operand has 146 places, 154 transitions, 354 flow. Second operand 4 states and 457 transitions. [2024-11-22 13:56:39,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 327 transitions, 1342 flow [2024-11-22 13:56:39,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 327 transitions, 1336 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:39,126 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 380 flow [2024-11-22 13:56:39,126 INFO L260 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} [2024-11-22 13:56:39,128 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 3 predicate places. [2024-11-22 13:56:39,128 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 380 flow [2024-11-22 13:56:39,128 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) [2024-11-22 13:56:39,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:39,129 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:39,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 13:56:39,129 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)] === [2024-11-22 13:56:39,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:39,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1488293237, now seen corresponding path program 1 times [2024-11-22 13:56:39,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:39,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471206038] [2024-11-22 13:56:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:39,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 13:56:39,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:39,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471206038] [2024-11-22 13:56:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471206038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:39,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:39,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:56:39,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728725502] [2024-11-22 13:56:39,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:39,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:56:39,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:39,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:56:39,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:56:39,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:39,268 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) [2024-11-22 13:56:39,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:39,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:39,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:41,932 INFO L124 PetriNetUnfolderBase]: 17170/29203 cut-off events. [2024-11-22 13:56:41,933 INFO L125 PetriNetUnfolderBase]: For 14217/14217 co-relation queries the response was YES. [2024-11-22 13:56:41,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67060 conditions, 29203 events. 17170/29203 cut-off events. For 14217/14217 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 191511 event pairs, 11813 based on Foata normal form. 0/26188 useless extension candidates. Maximal degree in co-relation 55644. Up to 23687 conditions per place. [2024-11-22 13:56:42,033 INFO L140 encePairwiseOnDemand]: 197/202 looper letters, 291 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2024-11-22 13:56:42,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 330 transitions, 1404 flow [2024-11-22 13:56:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:56:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:56:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2024-11-22 13:56:42,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5606435643564357 [2024-11-22 13:56:42,035 INFO L175 Difference]: Start difference. First operand has 150 places, 157 transitions, 380 flow. Second operand 4 states and 453 transitions. [2024-11-22 13:56:42,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 330 transitions, 1404 flow [2024-11-22 13:56:42,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 330 transitions, 1398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:42,055 INFO L231 Difference]: Finished difference. Result has 154 places, 160 transitions, 406 flow [2024-11-22 13:56:42,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=406, PETRI_PLACES=154, PETRI_TRANSITIONS=160} [2024-11-22 13:56:42,056 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-11-22 13:56:42,056 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 160 transitions, 406 flow [2024-11-22 13:56:42,056 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) [2024-11-22 13:56:42,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:42,056 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:42,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:56:42,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:56:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1399622636, now seen corresponding path program 1 times [2024-11-22 13:56:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:42,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195870166] [2024-11-22 13:56:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 13:56:42,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:42,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195870166] [2024-11-22 13:56:42,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195870166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:42,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:42,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:56:42,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950799128] [2024-11-22 13:56:42,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:42,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:56:42,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:42,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:56:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:56:42,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:42,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 160 transitions, 406 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-11-22 13:56:42,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:42,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:42,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:56:45,830 INFO L124 PetriNetUnfolderBase]: 19282/32737 cut-off events. [2024-11-22 13:56:45,830 INFO L125 PetriNetUnfolderBase]: For 18083/18083 co-relation queries the response was YES. [2024-11-22 13:56:45,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80578 conditions, 32737 events. 19282/32737 cut-off events. For 18083/18083 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 218852 event pairs, 13691 based on Foata normal form. 0/29954 useless extension candidates. Maximal degree in co-relation 67348. Up to 26999 conditions per place. [2024-11-22 13:56:45,957 INFO L140 encePairwiseOnDemand]: 197/202 looper letters, 300 selfloop transitions, 4 changer transitions 0/339 dead transitions. [2024-11-22 13:56:45,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 339 transitions, 1476 flow [2024-11-22 13:56:45,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:56:45,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:56:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2024-11-22 13:56:45,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5655940594059405 [2024-11-22 13:56:45,959 INFO L175 Difference]: Start difference. First operand has 154 places, 160 transitions, 406 flow. Second operand 4 states and 457 transitions. [2024-11-22 13:56:45,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 339 transitions, 1476 flow [2024-11-22 13:56:46,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 339 transitions, 1470 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:56:46,031 INFO L231 Difference]: Finished difference. Result has 158 places, 163 transitions, 438 flow [2024-11-22 13:56:46,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=438, PETRI_PLACES=158, PETRI_TRANSITIONS=163} [2024-11-22 13:56:46,032 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-22 13:56:46,032 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 163 transitions, 438 flow [2024-11-22 13:56:46,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-11-22 13:56:46,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:56:46,032 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:56:46,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:56:46,033 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:56:46,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:56:46,033 INFO L85 PathProgramCache]: Analyzing trace with hash -205606936, now seen corresponding path program 1 times [2024-11-22 13:56:46,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:56:46,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304928617] [2024-11-22 13:56:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:56:46,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:56:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:56:46,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 13:56:46,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:56:46,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304928617] [2024-11-22 13:56:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304928617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:56:46,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:56:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:56:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633277650] [2024-11-22 13:56:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:56:46,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:56:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:56:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:56:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:56:46,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 202 [2024-11-22 13:56:46,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 163 transitions, 438 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-11-22 13:56:46,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:56:46,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 202 [2024-11-22 13:56:46,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand