./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:45:39,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:45:39,449 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:45:39,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:45:39,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:45:39,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:45:39,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:45:39,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:45:39,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:45:39,473 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:45:39,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:45:39,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:45:39,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:45:39,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:45:39,474 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:45:39,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:45:39,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:45:39,475 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:45:39,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:45:39,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:45:39,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:45:39,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:45:39,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:45:39,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:45:39,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:45:39,480 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:45:39,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:45:39,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:45:39,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:45:39,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:45:39,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:45:39,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:45:39,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:45:39,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:45:39,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:45:39,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:45:39,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:45:39,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:45:39,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:45:39,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:45:39,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:45:39,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:45:39,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:45:39,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:45:39,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2024-10-24 23:45:39,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:45:39,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:45:39,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:45:39,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:45:39,690 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:45:39,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i [2024-10-24 23:45:40,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:45:41,349 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:45:41,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i [2024-10-24 23:45:41,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80236cf77/4fea32bc939145c0b3813bfea6c7e1e0/FLAGb08239f35 [2024-10-24 23:45:41,561 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80236cf77/4fea32bc939145c0b3813bfea6c7e1e0 [2024-10-24 23:45:41,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:45:41,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:45:41,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:45:41,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:45:41,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:45:41,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:41" (1/1) ... [2024-10-24 23:45:41,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5b033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:41, skipping insertion in model container [2024-10-24 23:45:41,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:41" (1/1) ... [2024-10-24 23:45:41,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:45:43,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:45:43,361 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:45:43,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-10-24 23:45:43,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-10-24 23:45:43,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-10-24 23:45:43,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-10-24 23:45:43,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-10-24 23:45:43,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-10-24 23:45:43,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-10-24 23:45:43,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-10-24 23:45:43,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-10-24 23:45:43,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-10-24 23:45:43,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-10-24 23:45:43,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-10-24 23:45:43,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-10-24 23:45:43,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-10-24 23:45:43,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-10-24 23:45:43,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-10-24 23:45:43,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-10-24 23:45:43,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-10-24 23:45:43,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-10-24 23:45:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-10-24 23:45:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-10-24 23:45:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-10-24 23:45:43,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-10-24 23:45:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-10-24 23:45:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-10-24 23:45:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-10-24 23:45:43,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-10-24 23:45:43,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-10-24 23:45:43,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-10-24 23:45:43,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-10-24 23:45:43,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-10-24 23:45:43,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-10-24 23:45:43,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-10-24 23:45:43,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-10-24 23:45:43,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-10-24 23:45:43,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-10-24 23:45:43,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-10-24 23:45:43,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-10-24 23:45:43,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-10-24 23:45:43,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-10-24 23:45:43,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-10-24 23:45:43,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-10-24 23:45:43,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-10-24 23:45:43,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-10-24 23:45:43,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-10-24 23:45:43,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-10-24 23:45:43,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-10-24 23:45:43,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-10-24 23:45:43,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-10-24 23:45:43,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-10-24 23:45:43,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-10-24 23:45:43,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-10-24 23:45:43,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-10-24 23:45:43,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-10-24 23:45:43,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-10-24 23:45:43,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-10-24 23:45:43,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-10-24 23:45:43,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-10-24 23:45:43,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-10-24 23:45:43,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-10-24 23:45:43,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-10-24 23:45:43,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-10-24 23:45:43,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-10-24 23:45:43,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-10-24 23:45:43,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-10-24 23:45:43,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-10-24 23:45:43,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-10-24 23:45:43,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-10-24 23:45:43,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-10-24 23:45:43,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-10-24 23:45:43,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-10-24 23:45:43,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-10-24 23:45:43,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-10-24 23:45:43,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-10-24 23:45:43,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-10-24 23:45:43,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-10-24 23:45:43,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-10-24 23:45:43,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-10-24 23:45:43,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-10-24 23:45:43,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-10-24 23:45:43,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-10-24 23:45:43,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-10-24 23:45:43,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-10-24 23:45:43,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-10-24 23:45:43,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-10-24 23:45:43,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-10-24 23:45:43,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-10-24 23:45:43,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-10-24 23:45:43,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-10-24 23:45:43,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-10-24 23:45:43,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-10-24 23:45:43,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-10-24 23:45:43,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-10-24 23:45:43,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-10-24 23:45:43,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-10-24 23:45:43,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-10-24 23:45:43,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-10-24 23:45:43,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-10-24 23:45:43,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-10-24 23:45:43,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-10-24 23:45:43,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:45:43,874 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:45:43,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43 WrapperNode [2024-10-24 23:45:43,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:45:43,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:45:43,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:45:43,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:45:43,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:43,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:43,979 INFO L138 Inliner]: procedures = 924, calls = 943, calls flagged for inlining = 838, calls inlined = 56, statements flattened = 510 [2024-10-24 23:45:43,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:45:43,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:45:43,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:45:43,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:45:43,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:43,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:43,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,017 INFO L175 MemorySlicer]: Split 31 memory accesses to 3 slices as follows [2, 2, 27]. 87 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 0, 9]. The 10 writes are split as follows [0, 1, 9]. [2024-10-24 23:45:44,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:45:44,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:45:44,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:45:44,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:45:44,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (1/1) ... [2024-10-24 23:45:44,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:45:44,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:45:44,064 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) [2024-10-24 23:45:44,068 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 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:45:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:45:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-10-24 23:45:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:45:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:45:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:45:44,100 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:45:44,281 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:45:44,283 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:45:44,668 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:45:44,668 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:45:44,900 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:45:44,900 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-24 23:45:44,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:44 BoogieIcfgContainer [2024-10-24 23:45:44,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:45:44,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:45:44,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:45:44,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:45:44,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:45:41" (1/3) ... [2024-10-24 23:45:44,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2771d953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:44, skipping insertion in model container [2024-10-24 23:45:44,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:43" (2/3) ... [2024-10-24 23:45:44,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2771d953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:44, skipping insertion in model container [2024-10-24 23:45:44,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:44" (3/3) ... [2024-10-24 23:45:44,908 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2024-10-24 23:45:44,921 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:45:44,921 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-24 23:45:44,921 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:45:45,022 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 23:45:45,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 202 transitions, 411 flow [2024-10-24 23:45:45,117 INFO L124 PetriNetUnfolderBase]: 78/226 cut-off events. [2024-10-24 23:45:45,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 23:45:45,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 226 events. 78/226 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 593 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 186. Up to 6 conditions per place. [2024-10-24 23:45:45,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 202 transitions, 411 flow [2024-10-24 23:45:45,132 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 200 transitions, 404 flow [2024-10-24 23:45:45,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:45:45,149 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;@579ad0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:45:45,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-24 23:45:45,166 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:45:45,166 INFO L124 PetriNetUnfolderBase]: 13/40 cut-off events. [2024-10-24 23:45:45,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:45:45,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:45,167 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:45:45,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-10-24 23:45:45,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:45,173 INFO L85 PathProgramCache]: Analyzing trace with hash -448917278, now seen corresponding path program 1 times [2024-10-24 23:45:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:45,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183654399] [2024-10-24 23:45:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:45:45,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:45,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183654399] [2024-10-24 23:45:45,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183654399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:45:45,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:45:45,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:45:45,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40290525] [2024-10-24 23:45:45,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:45:45,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 23:45:45,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:45,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 23:45:45,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 23:45:45,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 202 [2024-10-24 23:45:45,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 200 transitions, 404 flow. Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2024-10-24 23:45:45,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:45,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 202 [2024-10-24 23:45:45,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:45,836 INFO L124 PetriNetUnfolderBase]: 638/1621 cut-off events. [2024-10-24 23:45:45,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:45:45,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 1621 events. 638/1621 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9786 event pairs, 550 based on Foata normal form. 587/1963 useless extension candidates. Maximal degree in co-relation 2850. Up to 1267 conditions per place. [2024-10-24 23:45:45,848 INFO L140 encePairwiseOnDemand]: 157/202 looper letters, 77 selfloop transitions, 0 changer transitions 0/120 dead transitions. [2024-10-24 23:45:45,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 120 transitions, 398 flow [2024-10-24 23:45:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 23:45:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 23:45:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 226 transitions. [2024-10-24 23:45:45,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5594059405940595 [2024-10-24 23:45:45,860 INFO L175 Difference]: Start difference. First operand has 135 places, 200 transitions, 404 flow. Second operand 2 states and 226 transitions. [2024-10-24 23:45:45,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 120 transitions, 398 flow [2024-10-24 23:45:45,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:45:45,865 INFO L231 Difference]: Finished difference. Result has 116 places, 120 transitions, 244 flow [2024-10-24 23:45:45,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=244, PETRI_PLACES=116, PETRI_TRANSITIONS=120} [2024-10-24 23:45:45,870 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -19 predicate places. [2024-10-24 23:45:45,870 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 120 transitions, 244 flow [2024-10-24 23:45:45,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2024-10-24 23:45:45,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:45,871 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:45:45,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:45:45,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-10-24 23:45:45,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1093077422, now seen corresponding path program 1 times [2024-10-24 23:45:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:45,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31633935] [2024-10-24 23:45:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:45:45,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:45:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:45:45,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:45:45,985 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 23:45:45,986 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-10-24 23:45:45,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-10-24 23:45:45,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-10-24 23:45:45,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-10-24 23:45:45,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-10-24 23:45:45,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-10-24 23:45:45,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-10-24 23:45:45,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONUNKNOWN (7 of 15 remaining) [2024-10-24 23:45:45,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-10-24 23:45:45,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-10-24 23:45:45,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-10-24 23:45:45,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-10-24 23:45:45,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-10-24 23:45:45,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-10-24 23:45:45,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONUNKNOWN (0 of 15 remaining) [2024-10-24 23:45:45,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:45:45,992 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 23:45:45,993 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 23:45:45,994 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 23:45:46,157 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:45:46,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 365 transitions, 746 flow [2024-10-24 23:45:46,299 INFO L124 PetriNetUnfolderBase]: 147/429 cut-off events. [2024-10-24 23:45:46,299 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 23:45:46,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 429 events. 147/429 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1656 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 361. Up to 12 conditions per place. [2024-10-24 23:45:46,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 365 transitions, 746 flow [2024-10-24 23:45:46,335 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 365 transitions, 746 flow [2024-10-24 23:45:46,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:45:46,341 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;@579ad0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:45:46,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-24 23:45:46,356 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:45:46,356 INFO L124 PetriNetUnfolderBase]: 27/82 cut-off events. [2024-10-24 23:45:46,356 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 23:45:46,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:46,357 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:45:46,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-24 23:45:46,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2133056407, now seen corresponding path program 1 times [2024-10-24 23:45:46,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:46,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224763164] [2024-10-24 23:45:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:46,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:46,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 23:45:46,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:46,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224763164] [2024-10-24 23:45:46,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224763164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:45:46,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:45:46,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:45:46,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705079927] [2024-10-24 23:45:46,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:45:46,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 23:45:46,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 23:45:46,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 23:45:46,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 365 [2024-10-24 23:45:46,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 746 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2024-10-24 23:45:46,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:46,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 365 [2024-10-24 23:45:46,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:57,703 INFO L124 PetriNetUnfolderBase]: 76736/130416 cut-off events. [2024-10-24 23:45:57,703 INFO L125 PetriNetUnfolderBase]: For 484/484 co-relation queries the response was YES. [2024-10-24 23:45:57,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243508 conditions, 130416 events. 76736/130416 cut-off events. For 484/484 co-relation queries the response was YES. Maximal size of possible extension queue 2204. Compared 1192264 event pairs, 66560 based on Foata normal form. 47098/158671 useless extension candidates. Maximal degree in co-relation 227653. Up to 112805 conditions per place. [2024-10-24 23:45:58,353 INFO L140 encePairwiseOnDemand]: 289/365 looper letters, 144 selfloop transitions, 0 changer transitions 0/219 dead transitions. [2024-10-24 23:45:58,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 219 transitions, 742 flow [2024-10-24 23:45:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 23:45:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 23:45:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 406 transitions. [2024-10-24 23:45:58,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5561643835616439 [2024-10-24 23:45:58,357 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 746 flow. Second operand 2 states and 406 transitions. [2024-10-24 23:45:58,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 219 transitions, 742 flow [2024-10-24 23:45:58,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 219 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:45:58,366 INFO L231 Difference]: Finished difference. Result has 207 places, 219 transitions, 454 flow [2024-10-24 23:45:58,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=207, PETRI_TRANSITIONS=219} [2024-10-24 23:45:58,369 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -39 predicate places. [2024-10-24 23:45:58,369 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 219 transitions, 454 flow [2024-10-24 23:45:58,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2024-10-24 23:45:58,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:58,370 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:45:58,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:45:58,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-24 23:45:58,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1534895115, now seen corresponding path program 1 times [2024-10-24 23:45:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:58,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019496164] [2024-10-24 23:45:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:45:58,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:45:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:45:58,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:45:58,620 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 23:45:58,620 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-10-24 23:45:58,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-10-24 23:45:58,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONUNKNOWN (14 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-10-24 23:45:58,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONUNKNOWN (7 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-10-24 23:45:58,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-10-24 23:45:58,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-10-24 23:45:58,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-10-24 23:45:58,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-10-24 23:45:58,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONUNKNOWN (0 of 22 remaining) [2024-10-24 23:45:58,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:45:58,623 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 23:45:58,624 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 23:45:58,624 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-24 23:45:58,776 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 23:45:58,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 356 places, 528 transitions, 1083 flow [2024-10-24 23:45:58,856 INFO L124 PetriNetUnfolderBase]: 227/661 cut-off events. [2024-10-24 23:45:58,857 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-24 23:45:58,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 661 events. 227/661 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3034 event pairs, 1 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 552. Up to 24 conditions per place. [2024-10-24 23:45:58,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 356 places, 528 transitions, 1083 flow [2024-10-24 23:45:58,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 356 places, 528 transitions, 1083 flow [2024-10-24 23:45:58,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:45:58,883 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;@579ad0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:45:58,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-24 23:45:58,890 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:45:58,891 INFO L124 PetriNetUnfolderBase]: 54/154 cut-off events. [2024-10-24 23:45:58,891 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 23:45:58,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:58,891 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:45:58,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:45:58,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:58,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1243425087, now seen corresponding path program 1 times [2024-10-24 23:45:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:58,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316334035] [2024-10-24 23:45:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:58,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 23:45:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316334035] [2024-10-24 23:45:58,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316334035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:45:58,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:45:58,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:45:58,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392199340] [2024-10-24 23:45:58,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:45:58,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 23:45:58,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:58,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 23:45:58,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 23:45:58,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 528 [2024-10-24 23:45:58,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 528 transitions, 1083 flow. Second operand has 2 states, 2 states have (on average 138.0) internal successors, (276), 2 states have internal predecessors, (276), 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) [2024-10-24 23:45:58,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:58,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 528 [2024-10-24 23:45:58,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand