./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/libvsync/hclhlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:57:00,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:57:00,335 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:57:00,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:57:00,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:57:00,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:57:00,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:57:00,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:57:00,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:57:00,363 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:57:00,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:57:00,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:57:00,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:57:00,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:57:00,366 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:57:00,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:57:00,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:57:00,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:57:00,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:57:00,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:57:00,368 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:57:00,372 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:57:00,372 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:57:00,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:57:00,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:57:00,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:57:00,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:57:00,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:57:00,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:57:00,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:57:00,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:57:00,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:57:00,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:57:00,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:57:00,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:57:00,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:57:00,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:57:00,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-19 09:57:00,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:57:00,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:57:00,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:57:00,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:57:00,635 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:57:00,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hclhlock.i [2024-11-19 09:57:01,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:57:02,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:57:02,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-19 09:57:02,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647cc68d9/4254a89a40d54baaa9884893979ab818/FLAG80fb8def4 [2024-11-19 09:57:02,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647cc68d9/4254a89a40d54baaa9884893979ab818 [2024-11-19 09:57:02,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:57:02,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:57:02,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:57:02,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:57:02,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:57:02,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:57:02" (1/1) ... [2024-11-19 09:57:02,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247f5ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:02, skipping insertion in model container [2024-11-19 09:57:02,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:57:02" (1/1) ... [2024-11-19 09:57:02,556 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:57:04,053 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:57:04,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:57:04,063 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:57:04,068 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:57:04,068 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:57:04,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:57:04,384 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:57:04,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-19 09:57:04,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-19 09:57:04,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-19 09:57:04,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-19 09:57:04,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-19 09:57:04,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-19 09:57:04,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-19 09:57:04,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-19 09:57:04,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-19 09:57:04,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-19 09:57:04,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-19 09:57:04,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-19 09:57:04,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-19 09:57:04,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-19 09:57:04,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-19 09:57:04,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-19 09:57:04,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-19 09:57:04,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-19 09:57:04,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-19 09:57:04,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-19 09:57:04,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-19 09:57:04,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-19 09:57:04,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-19 09:57:04,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-19 09:57:04,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-19 09:57:04,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-19 09:57:04,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-19 09:57:04,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-19 09:57:04,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-19 09:57:04,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-19 09:57:04,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-19 09:57:04,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-19 09:57:04,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-19 09:57:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-19 09:57:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-19 09:57:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-19 09:57:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-19 09:57:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-19 09:57:04,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-19 09:57:04,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-19 09:57:04,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-19 09:57:04,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-19 09:57:04,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-19 09:57:04,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-19 09:57:04,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-19 09:57:04,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-19 09:57:04,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-19 09:57:04,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-19 09:57:04,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-19 09:57:04,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-19 09:57:04,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-19 09:57:04,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-19 09:57:04,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-19 09:57:04,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-19 09:57:04,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-19 09:57:04,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-19 09:57:04,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-19 09:57:04,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-19 09:57:04,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-19 09:57:04,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-19 09:57:04,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-19 09:57:04,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-19 09:57:04,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-19 09:57:04,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-19 09:57:04,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-19 09:57:04,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-19 09:57:04,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-19 09:57:04,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-19 09:57:04,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-19 09:57:04,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-19 09:57:04,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-19 09:57:04,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-19 09:57:04,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-19 09:57:04,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-19 09:57:04,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-19 09:57:04,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-19 09:57:04,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-19 09:57:04,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-19 09:57:04,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-19 09:57:04,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-19 09:57:04,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-19 09:57:04,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-19 09:57:04,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-19 09:57:04,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-19 09:57:04,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-19 09:57:04,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-19 09:57:04,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-19 09:57:04,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-19 09:57:04,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-19 09:57:04,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-19 09:57:04,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-19 09:57:04,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-19 09:57:04,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-19 09:57:04,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-19 09:57:04,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-19 09:57:04,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-19 09:57:04,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-19 09:57:04,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-19 09:57:04,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-19 09:57:04,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-19 09:57:04,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:57:04,817 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:57:04,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04 WrapperNode [2024-11-19 09:57:04,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:57:04,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:57:04,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:57:04,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:57:04,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:04,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:04,963 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 926 [2024-11-19 09:57:04,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:57:04,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:57:04,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:57:04,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:57:04,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:04,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:04,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,021 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 28, 18, 2]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 7, 6, 0]. The 15 writes are split as follows [0, 9, 5, 1]. [2024-11-19 09:57:05,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:57:05,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:57:05,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:57:05,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:57:05,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (1/1) ... [2024-11-19 09:57:05,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:57:05,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:57:05,113 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) [2024-11-19 09:57:05,115 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 [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:57:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 09:57:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 09:57:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 09:57:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 09:57:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:57:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:57:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-19 09:57:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-19 09:57:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 09:57:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 09:57:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 09:57:05,203 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:57:05,426 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:57:05,428 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:57:06,456 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:57:06,456 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:57:06,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:57:06,893 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-19 09:57:06,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:57:06 BoogieIcfgContainer [2024-11-19 09:57:06,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:57:06,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:57:06,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:57:06,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:57:06,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:57:02" (1/3) ... [2024-11-19 09:57:06,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9514e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:57:06, skipping insertion in model container [2024-11-19 09:57:06,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:04" (2/3) ... [2024-11-19 09:57:06,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9514e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:57:06, skipping insertion in model container [2024-11-19 09:57:06,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:57:06" (3/3) ... [2024-11-19 09:57:06,903 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-19 09:57:06,917 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:57:06,918 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2024-11-19 09:57:06,918 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:57:07,084 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 09:57:07,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 360 places, 515 transitions, 1037 flow [2024-11-19 09:57:07,277 INFO L124 PetriNetUnfolderBase]: 171/559 cut-off events. [2024-11-19 09:57:07,278 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:57:07,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 559 events. 171/559 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2207 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 420. Up to 6 conditions per place. [2024-11-19 09:57:07,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 360 places, 515 transitions, 1037 flow [2024-11-19 09:57:07,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 515 transitions, 1037 flow [2024-11-19 09:57:07,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:57:07,315 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=None, 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;@14e5908d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:57:07,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2024-11-19 09:57:07,320 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:57:07,320 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 09:57:07,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:57:07,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:07,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 09:57:07,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:07,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash 99267, now seen corresponding path program 1 times [2024-11-19 09:57:07,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:07,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244596261] [2024-11-19 09:57:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244596261] [2024-11-19 09:57:07,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244596261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:07,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:07,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:57:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022134055] [2024-11-19 09:57:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:07,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:07,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:07,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:07,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:07,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:07,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 515 transitions, 1037 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:07,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:07,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:07,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:08,558 INFO L124 PetriNetUnfolderBase]: 1543/4334 cut-off events. [2024-11-19 09:57:08,559 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-19 09:57:08,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7243 conditions, 4334 events. 1543/4334 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33660 event pairs, 1240 based on Foata normal form. 2007/5529 useless extension candidates. Maximal degree in co-relation 7090. Up to 2900 conditions per place. [2024-11-19 09:57:08,580 INFO L140 encePairwiseOnDemand]: 379/515 looper letters, 190 selfloop transitions, 4 changer transitions 0/366 dead transitions. [2024-11-19 09:57:08,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 366 transitions, 1127 flow [2024-11-19 09:57:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2024-11-19 09:57:08,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5449838187702265 [2024-11-19 09:57:08,637 INFO L175 Difference]: Start difference. First operand has 360 places, 515 transitions, 1037 flow. Second operand 3 states and 842 transitions. [2024-11-19 09:57:08,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 366 transitions, 1127 flow [2024-11-19 09:57:08,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 366 transitions, 1127 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:57:08,648 INFO L231 Difference]: Finished difference. Result has 338 places, 366 transitions, 747 flow [2024-11-19 09:57:08,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=338, PETRI_TRANSITIONS=366} [2024-11-19 09:57:08,655 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -22 predicate places. [2024-11-19 09:57:08,655 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 366 transitions, 747 flow [2024-11-19 09:57:08,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:08,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:08,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 09:57:08,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:57:08,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:08,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:08,658 INFO L85 PathProgramCache]: Analyzing trace with hash 99268, now seen corresponding path program 1 times [2024-11-19 09:57:08,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:08,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951719509] [2024-11-19 09:57:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:08,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:08,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:08,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:08,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951719509] [2024-11-19 09:57:08,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951719509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:08,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:08,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:57:08,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350069269] [2024-11-19 09:57:08,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:08,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:08,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:08,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 366 transitions, 747 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:08,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:08,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:08,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:09,450 INFO L124 PetriNetUnfolderBase]: 1543/4333 cut-off events. [2024-11-19 09:57:09,450 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:09,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7246 conditions, 4333 events. 1543/4333 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33587 event pairs, 1240 based on Foata normal form. 0/3523 useless extension candidates. Maximal degree in co-relation 7221. Up to 2901 conditions per place. [2024-11-19 09:57:09,469 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 191 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2024-11-19 09:57:09,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 365 transitions, 1131 flow [2024-11-19 09:57:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2024-11-19 09:57:09,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.459546925566343 [2024-11-19 09:57:09,473 INFO L175 Difference]: Start difference. First operand has 338 places, 366 transitions, 747 flow. Second operand 3 states and 710 transitions. [2024-11-19 09:57:09,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 365 transitions, 1131 flow [2024-11-19 09:57:09,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 365 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:57:09,482 INFO L231 Difference]: Finished difference. Result has 337 places, 365 transitions, 741 flow [2024-11-19 09:57:09,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=337, PETRI_TRANSITIONS=365} [2024-11-19 09:57:09,485 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-19 09:57:09,485 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 365 transitions, 741 flow [2024-11-19 09:57:09,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:09,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:09,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 09:57:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:57:09,487 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:09,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash 95498964, now seen corresponding path program 1 times [2024-11-19 09:57:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510702013] [2024-11-19 09:57:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:09,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:09,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:09,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510702013] [2024-11-19 09:57:09,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510702013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:09,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:09,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:09,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459078430] [2024-11-19 09:57:09,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:09,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:57:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:09,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:57:09,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:57:09,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:09,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 365 transitions, 741 flow. Second operand has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-19 09:57:09,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:09,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:09,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:10,545 INFO L124 PetriNetUnfolderBase]: 1543/4331 cut-off events. [2024-11-19 09:57:10,545 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:10,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7240 conditions, 4331 events. 1543/4331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33666 event pairs, 1240 based on Foata normal form. 0/3522 useless extension candidates. Maximal degree in co-relation 7228. Up to 2891 conditions per place. [2024-11-19 09:57:10,564 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 185 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2024-11-19 09:57:10,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 363 transitions, 1119 flow [2024-11-19 09:57:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:57:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:57:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2024-11-19 09:57:10,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40893203883495144 [2024-11-19 09:57:10,567 INFO L175 Difference]: Start difference. First operand has 337 places, 365 transitions, 741 flow. Second operand 5 states and 1053 transitions. [2024-11-19 09:57:10,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 363 transitions, 1119 flow [2024-11-19 09:57:10,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 363 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:57:10,572 INFO L231 Difference]: Finished difference. Result has 337 places, 363 transitions, 745 flow [2024-11-19 09:57:10,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=745, PETRI_PLACES=337, PETRI_TRANSITIONS=363} [2024-11-19 09:57:10,573 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-19 09:57:10,573 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 363 transitions, 745 flow [2024-11-19 09:57:10,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-19 09:57:10,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:10,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 09:57:10,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:57:10,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:10,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:10,575 INFO L85 PathProgramCache]: Analyzing trace with hash 95498965, now seen corresponding path program 1 times [2024-11-19 09:57:10,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:10,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880600936] [2024-11-19 09:57:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:10,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:10,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880600936] [2024-11-19 09:57:10,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880600936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:10,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:10,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035993126] [2024-11-19 09:57:10,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:10,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:57:10,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:57:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:57:10,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:10,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 363 transitions, 745 flow. Second operand has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-19 09:57:10,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:10,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:10,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:11,550 INFO L124 PetriNetUnfolderBase]: 1543/4330 cut-off events. [2024-11-19 09:57:11,550 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:11,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7242 conditions, 4330 events. 1543/4330 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33681 event pairs, 1240 based on Foata normal form. 0/3522 useless extension candidates. Maximal degree in co-relation 7212. Up to 2891 conditions per place. [2024-11-19 09:57:11,571 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 186 selfloop transitions, 4 changer transitions 0/362 dead transitions. [2024-11-19 09:57:11,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 362 transitions, 1123 flow [2024-11-19 09:57:11,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:57:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:57:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2024-11-19 09:57:11,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40815533980582525 [2024-11-19 09:57:11,579 INFO L175 Difference]: Start difference. First operand has 337 places, 363 transitions, 745 flow. Second operand 5 states and 1051 transitions. [2024-11-19 09:57:11,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 362 transitions, 1123 flow [2024-11-19 09:57:11,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 362 transitions, 1111 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:57:11,584 INFO L231 Difference]: Finished difference. Result has 336 places, 362 transitions, 739 flow [2024-11-19 09:57:11,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=739, PETRI_PLACES=336, PETRI_TRANSITIONS=362} [2024-11-19 09:57:11,585 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-19 09:57:11,585 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 362 transitions, 739 flow [2024-11-19 09:57:11,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-19 09:57:11,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:11,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:11,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:57:11,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:11,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1744135598, now seen corresponding path program 1 times [2024-11-19 09:57:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:11,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931139262] [2024-11-19 09:57:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:11,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:11,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:11,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931139262] [2024-11-19 09:57:11,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931139262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:11,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:11,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:57:11,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592244434] [2024-11-19 09:57:11,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:11,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:57:11,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:11,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:57:11,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:57:11,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:11,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 362 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 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) [2024-11-19 09:57:11,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:11,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:11,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:12,587 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-19 09:57:12,587 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:12,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7238 conditions, 4329 events. 1543/4329 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33663 event pairs, 1240 based on Foata normal form. 0/3523 useless extension candidates. Maximal degree in co-relation 7212. Up to 2891 conditions per place. [2024-11-19 09:57:12,605 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 183 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-19 09:57:12,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 361 transitions, 1115 flow [2024-11-19 09:57:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:57:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:57:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2024-11-19 09:57:12,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39546925566343044 [2024-11-19 09:57:12,608 INFO L175 Difference]: Start difference. First operand has 336 places, 362 transitions, 739 flow. Second operand 6 states and 1222 transitions. [2024-11-19 09:57:12,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 361 transitions, 1115 flow [2024-11-19 09:57:12,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 361 transitions, 1107 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:57:12,613 INFO L231 Difference]: Finished difference. Result has 336 places, 361 transitions, 741 flow [2024-11-19 09:57:12,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=336, PETRI_TRANSITIONS=361} [2024-11-19 09:57:12,614 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-19 09:57:12,614 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 361 transitions, 741 flow [2024-11-19 09:57:12,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 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) [2024-11-19 09:57:12,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:12,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:12,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:57:12,616 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:12,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:12,616 INFO L85 PathProgramCache]: Analyzing trace with hash -958206375, now seen corresponding path program 1 times [2024-11-19 09:57:12,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:12,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031653644] [2024-11-19 09:57:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:12,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:12,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:12,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031653644] [2024-11-19 09:57:12,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031653644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:12,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:12,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131933285] [2024-11-19 09:57:12,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:12,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:57:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:57:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:57:12,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:12,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 361 transitions, 741 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-19 09:57:12,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:12,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:12,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:13,321 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-19 09:57:13,321 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:13,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7236 conditions, 4326 events. 1543/4326 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33634 event pairs, 1240 based on Foata normal form. 1/3520 useless extension candidates. Maximal degree in co-relation 7208. Up to 2881 conditions per place. [2024-11-19 09:57:13,341 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 185 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-19 09:57:13,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 358 transitions, 1111 flow [2024-11-19 09:57:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:57:13,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:57:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 877 transitions. [2024-11-19 09:57:13,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42572815533980585 [2024-11-19 09:57:13,344 INFO L175 Difference]: Start difference. First operand has 336 places, 361 transitions, 741 flow. Second operand 4 states and 877 transitions. [2024-11-19 09:57:13,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 358 transitions, 1111 flow [2024-11-19 09:57:13,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 358 transitions, 1099 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 09:57:13,351 INFO L231 Difference]: Finished difference. Result has 331 places, 358 transitions, 729 flow [2024-11-19 09:57:13,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=331, PETRI_TRANSITIONS=358} [2024-11-19 09:57:13,353 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-19 09:57:13,353 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 358 transitions, 729 flow [2024-11-19 09:57:13,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-19 09:57:13,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:13,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:13,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:57:13,354 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1721639564, now seen corresponding path program 1 times [2024-11-19 09:57:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349797028] [2024-11-19 09:57:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:13,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:13,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:13,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349797028] [2024-11-19 09:57:13,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349797028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:13,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:13,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572296981] [2024-11-19 09:57:13,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:13,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:57:13,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:57:13,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:57:13,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:13,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 358 transitions, 729 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-19 09:57:13,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:13,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:13,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:13,927 INFO L124 PetriNetUnfolderBase]: 1543/4323 cut-off events. [2024-11-19 09:57:13,927 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-19 09:57:13,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7229 conditions, 4323 events. 1543/4323 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33642 event pairs, 1240 based on Foata normal form. 1/3518 useless extension candidates. Maximal degree in co-relation 7167. Up to 2881 conditions per place. [2024-11-19 09:57:13,940 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 184 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2024-11-19 09:57:13,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 355 transitions, 1097 flow [2024-11-19 09:57:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:57:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:57:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 876 transitions. [2024-11-19 09:57:13,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42524271844660194 [2024-11-19 09:57:13,943 INFO L175 Difference]: Start difference. First operand has 331 places, 358 transitions, 729 flow. Second operand 4 states and 876 transitions. [2024-11-19 09:57:13,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 355 transitions, 1097 flow [2024-11-19 09:57:13,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 355 transitions, 1091 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:57:13,948 INFO L231 Difference]: Finished difference. Result has 328 places, 355 transitions, 723 flow [2024-11-19 09:57:13,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=723, PETRI_PLACES=328, PETRI_TRANSITIONS=355} [2024-11-19 09:57:13,950 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-19 09:57:13,950 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 355 transitions, 723 flow [2024-11-19 09:57:13,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-19 09:57:13,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:13,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:13,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:57:13,951 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:13,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -946705447, now seen corresponding path program 1 times [2024-11-19 09:57:13,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:13,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94189043] [2024-11-19 09:57:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:13,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:14,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:14,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94189043] [2024-11-19 09:57:14,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94189043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:14,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:14,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:14,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641922265] [2024-11-19 09:57:14,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:14,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:14,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:14,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:14,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:14,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:14,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 355 transitions, 723 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-19 09:57:14,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:14,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:14,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:14,467 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-19 09:57:14,467 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-19 09:57:14,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7235 conditions, 4326 events. 1543/4326 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33648 event pairs, 1240 based on Foata normal form. 0/3520 useless extension candidates. Maximal degree in co-relation 7173. Up to 2893 conditions per place. [2024-11-19 09:57:14,483 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 188 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2024-11-19 09:57:14,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 358 transitions, 1109 flow [2024-11-19 09:57:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2024-11-19 09:57:14,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4576051779935275 [2024-11-19 09:57:14,487 INFO L175 Difference]: Start difference. First operand has 328 places, 355 transitions, 723 flow. Second operand 3 states and 707 transitions. [2024-11-19 09:57:14,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 358 transitions, 1109 flow [2024-11-19 09:57:14,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 358 transitions, 1103 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:57:14,494 INFO L231 Difference]: Finished difference. Result has 328 places, 356 transitions, 729 flow [2024-11-19 09:57:14,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=729, PETRI_PLACES=328, PETRI_TRANSITIONS=356} [2024-11-19 09:57:14,496 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-19 09:57:14,497 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 356 transitions, 729 flow [2024-11-19 09:57:14,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-19 09:57:14,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:14,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:14,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:57:14,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:14,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1005391165, now seen corresponding path program 1 times [2024-11-19 09:57:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:14,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371124657] [2024-11-19 09:57:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:14,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:14,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371124657] [2024-11-19 09:57:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371124657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:57:14,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091889684] [2024-11-19 09:57:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:14,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:57:14,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:57:14,589 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) [2024-11-19 09:57:14,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:57:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:14,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 09:57:14,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:57:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:14,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:57:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:14,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091889684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:57:14,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:57:14,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 09:57:14,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396095459] [2024-11-19 09:57:14,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:57:14,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:57:14,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:57:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:57:14,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:14,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 356 transitions, 729 flow. Second operand has 7 states, 7 states have (on average 174.57142857142858) internal successors, (1222), 7 states have internal predecessors, (1222), 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) [2024-11-19 09:57:14,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:14,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:14,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:15,439 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-19 09:57:15,439 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-19 09:57:15,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7245 conditions, 4329 events. 1543/4329 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33575 event pairs, 1240 based on Foata normal form. 1/3524 useless extension candidates. Maximal degree in co-relation 7221. Up to 2891 conditions per place. [2024-11-19 09:57:15,454 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 188 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2024-11-19 09:57:15,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 361 transitions, 1127 flow [2024-11-19 09:57:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:57:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:57:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2024-11-19 09:57:15,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40932038834951456 [2024-11-19 09:57:15,460 INFO L175 Difference]: Start difference. First operand has 328 places, 356 transitions, 729 flow. Second operand 5 states and 1054 transitions. [2024-11-19 09:57:15,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 361 transitions, 1127 flow [2024-11-19 09:57:15,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 361 transitions, 1125 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:57:15,465 INFO L231 Difference]: Finished difference. Result has 333 places, 358 transitions, 753 flow [2024-11-19 09:57:15,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=753, PETRI_PLACES=333, PETRI_TRANSITIONS=358} [2024-11-19 09:57:15,466 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -27 predicate places. [2024-11-19 09:57:15,466 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 358 transitions, 753 flow [2024-11-19 09:57:15,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 174.57142857142858) internal successors, (1222), 7 states have internal predecessors, (1222), 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) [2024-11-19 09:57:15,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:15,467 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:15,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 09:57:15,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:57:15,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:15,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1259926631, now seen corresponding path program 2 times [2024-11-19 09:57:15,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:15,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427782305] [2024-11-19 09:57:15,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:57:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:15,689 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:57:15,690 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:57:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:15,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:15,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427782305] [2024-11-19 09:57:15,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427782305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:15,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:15,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:15,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541443727] [2024-11-19 09:57:15,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:15,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:15,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:15,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 358 transitions, 753 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-19 09:57:15,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:15,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:15,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:16,241 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-19 09:57:16,241 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2024-11-19 09:57:16,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7252 conditions, 4326 events. 1543/4326 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33589 event pairs, 1240 based on Foata normal form. 1/3521 useless extension candidates. Maximal degree in co-relation 7204. Up to 2888 conditions per place. [2024-11-19 09:57:16,258 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 187 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2024-11-19 09:57:16,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 355 transitions, 1125 flow [2024-11-19 09:57:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-19 09:57:16,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45501618122977344 [2024-11-19 09:57:16,264 INFO L175 Difference]: Start difference. First operand has 333 places, 358 transitions, 753 flow. Second operand 3 states and 703 transitions. [2024-11-19 09:57:16,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 355 transitions, 1125 flow [2024-11-19 09:57:16,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 355 transitions, 1119 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 09:57:16,302 INFO L231 Difference]: Finished difference. Result has 331 places, 355 transitions, 745 flow [2024-11-19 09:57:16,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=331, PETRI_TRANSITIONS=355} [2024-11-19 09:57:16,305 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-19 09:57:16,305 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 355 transitions, 745 flow [2024-11-19 09:57:16,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-19 09:57:16,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:16,306 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:16,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 09:57:16,306 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:16,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387386, now seen corresponding path program 1 times [2024-11-19 09:57:16,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:16,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047407219] [2024-11-19 09:57:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:16,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:16,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047407219] [2024-11-19 09:57:16,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047407219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:16,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:16,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:57:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383606791] [2024-11-19 09:57:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:16,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:16,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:16,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:16,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 515 [2024-11-19 09:57:16,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 355 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:16,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:16,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 515 [2024-11-19 09:57:16,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:16,962 INFO L124 PetriNetUnfolderBase]: 1835/4975 cut-off events. [2024-11-19 09:57:16,963 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 09:57:16,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8445 conditions, 4975 events. 1835/4975 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 39420 event pairs, 1240 based on Foata normal form. 0/4114 useless extension candidates. Maximal degree in co-relation 8399. Up to 2901 conditions per place. [2024-11-19 09:57:16,986 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 335 selfloop transitions, 2 changer transitions 0/499 dead transitions. [2024-11-19 09:57:16,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 499 transitions, 1707 flow [2024-11-19 09:57:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2024-11-19 09:57:16,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436893203883495 [2024-11-19 09:57:16,993 INFO L175 Difference]: Start difference. First operand has 331 places, 355 transitions, 745 flow. Second operand 3 states and 840 transitions. [2024-11-19 09:57:16,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 499 transitions, 1707 flow [2024-11-19 09:57:16,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 499 transitions, 1703 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:57:17,001 INFO L231 Difference]: Finished difference. Result has 329 places, 353 transitions, 741 flow [2024-11-19 09:57:17,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=329, PETRI_TRANSITIONS=353} [2024-11-19 09:57:17,002 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-19 09:57:17,002 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 353 transitions, 741 flow [2024-11-19 09:57:17,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-19 09:57:17,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:17,002 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:17,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 09:57:17,003 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:17,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387385, now seen corresponding path program 1 times [2024-11-19 09:57:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160396243] [2024-11-19 09:57:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:17,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160396243] [2024-11-19 09:57:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160396243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:17,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:17,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484665616] [2024-11-19 09:57:17,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:17,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:17,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:17,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:17,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:17,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:17,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 353 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-19 09:57:17,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:17,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:17,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:17,654 INFO L124 PetriNetUnfolderBase]: 1546/4350 cut-off events. [2024-11-19 09:57:17,655 INFO L125 PetriNetUnfolderBase]: For 133/135 co-relation queries the response was YES. [2024-11-19 09:57:17,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7416 conditions, 4350 events. 1546/4350 cut-off events. For 133/135 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33503 event pairs, 1240 based on Foata normal form. 0/3549 useless extension candidates. Maximal degree in co-relation 7369. Up to 2902 conditions per place. [2024-11-19 09:57:17,672 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 202 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2024-11-19 09:57:17,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 368 transitions, 1179 flow [2024-11-19 09:57:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-11-19 09:57:17,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4647249190938511 [2024-11-19 09:57:17,675 INFO L175 Difference]: Start difference. First operand has 329 places, 353 transitions, 741 flow. Second operand 3 states and 718 transitions. [2024-11-19 09:57:17,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 368 transitions, 1179 flow [2024-11-19 09:57:17,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 368 transitions, 1175 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:57:17,681 INFO L231 Difference]: Finished difference. Result has 330 places, 354 transitions, 749 flow [2024-11-19 09:57:17,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=330, PETRI_TRANSITIONS=354} [2024-11-19 09:57:17,682 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-19 09:57:17,682 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 354 transitions, 749 flow [2024-11-19 09:57:17,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-19 09:57:17,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:17,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:17,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 09:57:17,683 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:17,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash -870584356, now seen corresponding path program 1 times [2024-11-19 09:57:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:17,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038941195] [2024-11-19 09:57:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:17,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:17,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038941195] [2024-11-19 09:57:17,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038941195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:17,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:17,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:57:17,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130965757] [2024-11-19 09:57:17,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:17,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:57:17,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:57:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:57:17,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:17,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 354 transitions, 749 flow. Second operand has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2024-11-19 09:57:17,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:17,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:17,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:18,385 INFO L124 PetriNetUnfolderBase]: 1546/4344 cut-off events. [2024-11-19 09:57:18,385 INFO L125 PetriNetUnfolderBase]: For 12/14 co-relation queries the response was YES. [2024-11-19 09:57:18,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7287 conditions, 4344 events. 1546/4344 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33473 event pairs, 1240 based on Foata normal form. 2/3546 useless extension candidates. Maximal degree in co-relation 7240. Up to 2889 conditions per place. [2024-11-19 09:57:18,402 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 184 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2024-11-19 09:57:18,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 351 transitions, 1121 flow [2024-11-19 09:57:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:57:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:57:18,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 874 transitions. [2024-11-19 09:57:18,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4242718446601942 [2024-11-19 09:57:18,404 INFO L175 Difference]: Start difference. First operand has 330 places, 354 transitions, 749 flow. Second operand 4 states and 874 transitions. [2024-11-19 09:57:18,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 351 transitions, 1121 flow [2024-11-19 09:57:18,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 351 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:57:18,409 INFO L231 Difference]: Finished difference. Result has 329 places, 351 transitions, 751 flow [2024-11-19 09:57:18,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=751, PETRI_PLACES=329, PETRI_TRANSITIONS=351} [2024-11-19 09:57:18,410 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-19 09:57:18,411 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 351 transitions, 751 flow [2024-11-19 09:57:18,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2024-11-19 09:57:18,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:18,411 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:18,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 09:57:18,412 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:18,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:18,412 INFO L85 PathProgramCache]: Analyzing trace with hash 709659853, now seen corresponding path program 1 times [2024-11-19 09:57:18,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:18,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670006442] [2024-11-19 09:57:18,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:18,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670006442] [2024-11-19 09:57:18,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670006442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:18,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:18,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:18,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985416198] [2024-11-19 09:57:18,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:18,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:57:18,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:18,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:57:18,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:57:18,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:18,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 351 transitions, 751 flow. Second operand has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-19 09:57:18,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:18,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:18,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:19,324 INFO L124 PetriNetUnfolderBase]: 1536/4231 cut-off events. [2024-11-19 09:57:19,324 INFO L125 PetriNetUnfolderBase]: For 16/18 co-relation queries the response was YES. [2024-11-19 09:57:19,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7179 conditions, 4231 events. 1536/4231 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 32345 event pairs, 992 based on Foata normal form. 0/3473 useless extension candidates. Maximal degree in co-relation 7132. Up to 2342 conditions per place. [2024-11-19 09:57:19,340 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 326 selfloop transitions, 8 changer transitions 0/496 dead transitions. [2024-11-19 09:57:19,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 496 transitions, 1709 flow [2024-11-19 09:57:19,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:57:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:57:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1363 transitions. [2024-11-19 09:57:19,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44110032362459545 [2024-11-19 09:57:19,343 INFO L175 Difference]: Start difference. First operand has 329 places, 351 transitions, 751 flow. Second operand 6 states and 1363 transitions. [2024-11-19 09:57:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 496 transitions, 1709 flow [2024-11-19 09:57:19,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 496 transitions, 1699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:57:19,349 INFO L231 Difference]: Finished difference. Result has 330 places, 350 transitions, 755 flow [2024-11-19 09:57:19,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=755, PETRI_PLACES=330, PETRI_TRANSITIONS=350} [2024-11-19 09:57:19,350 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-19 09:57:19,350 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 350 transitions, 755 flow [2024-11-19 09:57:19,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-19 09:57:19,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:19,351 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:19,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 09:57:19,351 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:19,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash 709659854, now seen corresponding path program 1 times [2024-11-19 09:57:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573521822] [2024-11-19 09:57:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:19,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:19,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573521822] [2024-11-19 09:57:19,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573521822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:19,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:19,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:19,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430686010] [2024-11-19 09:57:19,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:19,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:57:19,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:19,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:57:19,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:57:19,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:19,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 350 transitions, 755 flow. Second operand has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-19 09:57:19,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:19,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:19,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:20,381 INFO L124 PetriNetUnfolderBase]: 1546/4340 cut-off events. [2024-11-19 09:57:20,381 INFO L125 PetriNetUnfolderBase]: For 140/142 co-relation queries the response was YES. [2024-11-19 09:57:20,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7414 conditions, 4340 events. 1546/4340 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33444 event pairs, 1240 based on Foata normal form. 0/3544 useless extension candidates. Maximal degree in co-relation 7365. Up to 2888 conditions per place. [2024-11-19 09:57:20,396 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 181 selfloop transitions, 6 changer transitions 0/349 dead transitions. [2024-11-19 09:57:20,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 349 transitions, 1127 flow [2024-11-19 09:57:20,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:57:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:57:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1044 transitions. [2024-11-19 09:57:20,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4054368932038835 [2024-11-19 09:57:20,399 INFO L175 Difference]: Start difference. First operand has 330 places, 350 transitions, 755 flow. Second operand 5 states and 1044 transitions. [2024-11-19 09:57:20,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 349 transitions, 1127 flow [2024-11-19 09:57:20,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 349 transitions, 1111 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 09:57:20,405 INFO L231 Difference]: Finished difference. Result has 328 places, 349 transitions, 749 flow [2024-11-19 09:57:20,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=749, PETRI_PLACES=328, PETRI_TRANSITIONS=349} [2024-11-19 09:57:20,406 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-19 09:57:20,406 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 349 transitions, 749 flow [2024-11-19 09:57:20,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-19 09:57:20,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:20,407 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:20,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 09:57:20,407 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:20,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -916577378, now seen corresponding path program 1 times [2024-11-19 09:57:20,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:20,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922530277] [2024-11-19 09:57:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:20,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:20,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922530277] [2024-11-19 09:57:20,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922530277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:20,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:57:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846773791] [2024-11-19 09:57:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:20,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:57:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:57:20,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:57:20,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-19 09:57:20,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 349 transitions, 749 flow. Second operand has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2024-11-19 09:57:20,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:20,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-19 09:57:20,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:21,707 INFO L124 PetriNetUnfolderBase]: 1546/4336 cut-off events. [2024-11-19 09:57:21,707 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-19 09:57:21,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7285 conditions, 4336 events. 1546/4336 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33485 event pairs, 1240 based on Foata normal form. 2/3548 useless extension candidates. Maximal degree in co-relation 7237. Up to 2888 conditions per place. [2024-11-19 09:57:21,719 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 182 selfloop transitions, 6 changer transitions 0/347 dead transitions. [2024-11-19 09:57:21,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 347 transitions, 1121 flow [2024-11-19 09:57:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:57:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:57:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1031 transitions. [2024-11-19 09:57:21,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4003883495145631 [2024-11-19 09:57:21,721 INFO L175 Difference]: Start difference. First operand has 328 places, 349 transitions, 749 flow. Second operand 5 states and 1031 transitions. [2024-11-19 09:57:21,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 347 transitions, 1121 flow [2024-11-19 09:57:21,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 347 transitions, 1109 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:57:21,725 INFO L231 Difference]: Finished difference. Result has 326 places, 347 transitions, 745 flow [2024-11-19 09:57:21,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=745, PETRI_PLACES=326, PETRI_TRANSITIONS=347} [2024-11-19 09:57:21,726 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -34 predicate places. [2024-11-19 09:57:21,726 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 347 transitions, 745 flow [2024-11-19 09:57:21,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2024-11-19 09:57:21,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:21,727 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:21,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 09:57:21,727 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:21,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:21,727 INFO L85 PathProgramCache]: Analyzing trace with hash -916577379, now seen corresponding path program 1 times [2024-11-19 09:57:21,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:21,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090371811] [2024-11-19 09:57:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:21,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:21,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:21,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090371811] [2024-11-19 09:57:21,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090371811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:21,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:21,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:57:21,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021506733] [2024-11-19 09:57:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:21,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:57:21,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:21,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:57:21,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:57:21,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-19 09:57:21,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 347 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 173.5) internal successors, (694), 4 states have internal predecessors, (694), 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) [2024-11-19 09:57:21,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:21,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-19 09:57:21,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:22,513 INFO L124 PetriNetUnfolderBase]: 1536/4221 cut-off events. [2024-11-19 09:57:22,513 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-19 09:57:22,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7170 conditions, 4221 events. 1536/4221 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 32249 event pairs, 992 based on Foata normal form. 2/3473 useless extension candidates. Maximal degree in co-relation 7122. Up to 2344 conditions per place. [2024-11-19 09:57:22,529 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 329 selfloop transitions, 5 changer transitions 0/491 dead transitions. [2024-11-19 09:57:22,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 491 transitions, 1701 flow [2024-11-19 09:57:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:57:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:57:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1008 transitions. [2024-11-19 09:57:22,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4893203883495146 [2024-11-19 09:57:22,532 INFO L175 Difference]: Start difference. First operand has 326 places, 347 transitions, 745 flow. Second operand 4 states and 1008 transitions. [2024-11-19 09:57:22,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 491 transitions, 1701 flow [2024-11-19 09:57:22,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 491 transitions, 1689 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:57:22,539 INFO L231 Difference]: Finished difference. Result has 323 places, 345 transitions, 739 flow [2024-11-19 09:57:22,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=323, PETRI_TRANSITIONS=345} [2024-11-19 09:57:22,540 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -37 predicate places. [2024-11-19 09:57:22,540 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 345 transitions, 739 flow [2024-11-19 09:57:22,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 173.5) internal successors, (694), 4 states have internal predecessors, (694), 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) [2024-11-19 09:57:22,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:22,541 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:22,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 09:57:22,541 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:22,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:22,541 INFO L85 PathProgramCache]: Analyzing trace with hash 832633426, now seen corresponding path program 1 times [2024-11-19 09:57:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:22,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355313118] [2024-11-19 09:57:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:22,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:22,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:22,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355313118] [2024-11-19 09:57:22,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355313118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:57:22,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946205884] [2024-11-19 09:57:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:22,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:57:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:57:22,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:57:22,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:57:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:22,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:57:22,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:57:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:22,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:57:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 09:57:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946205884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:57:22,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:57:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-19 09:57:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003167552] [2024-11-19 09:57:22,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:57:22,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:57:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:22,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:57:22,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:57:22,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-19 09:57:22,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 345 transitions, 739 flow. Second operand has 9 states, 9 states have (on average 176.44444444444446) internal successors, (1588), 9 states have internal predecessors, (1588), 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) [2024-11-19 09:57:22,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:22,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-19 09:57:22,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:23,894 INFO L124 PetriNetUnfolderBase]: 1549/4358 cut-off events. [2024-11-19 09:57:23,894 INFO L125 PetriNetUnfolderBase]: For 143/145 co-relation queries the response was YES. [2024-11-19 09:57:23,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7444 conditions, 4358 events. 1549/4358 cut-off events. For 143/145 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33315 event pairs, 1240 based on Foata normal form. 2/3570 useless extension candidates. Maximal degree in co-relation 7396. Up to 2877 conditions per place. [2024-11-19 09:57:23,909 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 206 selfloop transitions, 8 changer transitions 0/372 dead transitions. [2024-11-19 09:57:23,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 372 transitions, 1233 flow [2024-11-19 09:57:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:57:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:57:23,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1420 transitions. [2024-11-19 09:57:23,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39389736477115117 [2024-11-19 09:57:23,912 INFO L175 Difference]: Start difference. First operand has 323 places, 345 transitions, 739 flow. Second operand 7 states and 1420 transitions. [2024-11-19 09:57:23,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 372 transitions, 1233 flow [2024-11-19 09:57:23,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 372 transitions, 1215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:57:23,917 INFO L231 Difference]: Finished difference. Result has 329 places, 347 transitions, 767 flow [2024-11-19 09:57:23,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=767, PETRI_PLACES=329, PETRI_TRANSITIONS=347} [2024-11-19 09:57:23,919 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-19 09:57:23,919 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 347 transitions, 767 flow [2024-11-19 09:57:23,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.44444444444446) internal successors, (1588), 9 states have internal predecessors, (1588), 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) [2024-11-19 09:57:23,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:23,920 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:23,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:57:24,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 09:57:24,120 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:24,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1395893032, now seen corresponding path program 2 times [2024-11-19 09:57:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293151004] [2024-11-19 09:57:24,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:57:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:24,149 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:57:24,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:57:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-19 09:57:24,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:24,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293151004] [2024-11-19 09:57:24,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293151004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:24,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:24,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:57:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359072396] [2024-11-19 09:57:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:57:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:57:24,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:57:24,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-19 09:57:24,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 347 transitions, 767 flow. Second operand has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2024-11-19 09:57:24,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:24,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-19 09:57:24,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:25,187 INFO L124 PetriNetUnfolderBase]: 1654/5609 cut-off events. [2024-11-19 09:57:25,188 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 09:57:25,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8850 conditions, 5609 events. 1654/5609 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 49618 event pairs, 248 based on Foata normal form. 0/4796 useless extension candidates. Maximal degree in co-relation 8797. Up to 1956 conditions per place. [2024-11-19 09:57:25,209 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 478 selfloop transitions, 5 changer transitions 0/639 dead transitions. [2024-11-19 09:57:25,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 639 transitions, 2317 flow [2024-11-19 09:57:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:57:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:57:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1159 transitions. [2024-11-19 09:57:25,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5626213592233009 [2024-11-19 09:57:25,216 INFO L175 Difference]: Start difference. First operand has 329 places, 347 transitions, 767 flow. Second operand 4 states and 1159 transitions. [2024-11-19 09:57:25,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 639 transitions, 2317 flow [2024-11-19 09:57:25,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 639 transitions, 2299 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-19 09:57:25,224 INFO L231 Difference]: Finished difference. Result has 328 places, 347 transitions, 771 flow [2024-11-19 09:57:25,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=771, PETRI_PLACES=328, PETRI_TRANSITIONS=347} [2024-11-19 09:57:25,225 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-19 09:57:25,225 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 347 transitions, 771 flow [2024-11-19 09:57:25,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2024-11-19 09:57:25,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:25,226 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:25,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 09:57:25,226 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:25,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash -368938041, now seen corresponding path program 1 times [2024-11-19 09:57:25,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:25,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146405327] [2024-11-19 09:57:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:25,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:25,774 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 09:57:25,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:25,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146405327] [2024-11-19 09:57:25,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146405327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:57:25,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749876347] [2024-11-19 09:57:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:25,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:57:25,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:57:25,777 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:57:25,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:57:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:26,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 09:57:26,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:57:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 09:57:26,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:57:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 09:57:26,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749876347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:57:26,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:57:26,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2024-11-19 09:57:26,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122514853] [2024-11-19 09:57:26,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:57:26,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 09:57:26,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:26,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 09:57:26,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-19 09:57:30,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:57:30,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-19 09:57:30,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 347 transitions, 771 flow. Second operand has 17 states, 17 states have (on average 172.76470588235293) internal successors, (2937), 17 states have internal predecessors, (2937), 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) [2024-11-19 09:57:30,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:30,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-19 09:57:30,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:32,072 INFO L124 PetriNetUnfolderBase]: 1550/4392 cut-off events. [2024-11-19 09:57:32,072 INFO L125 PetriNetUnfolderBase]: For 1008/1010 co-relation queries the response was YES. [2024-11-19 09:57:32,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8276 conditions, 4392 events. 1550/4392 cut-off events. For 1008/1010 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33549 event pairs, 1240 based on Foata normal form. 2/3722 useless extension candidates. Maximal degree in co-relation 8225. Up to 2884 conditions per place. [2024-11-19 09:57:32,086 INFO L140 encePairwiseOnDemand]: 504/515 looper letters, 220 selfloop transitions, 27 changer transitions 0/401 dead transitions. [2024-11-19 09:57:32,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 401 transitions, 1391 flow [2024-11-19 09:57:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 09:57:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 09:57:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3288 transitions. [2024-11-19 09:57:32,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3546925566343042 [2024-11-19 09:57:32,092 INFO L175 Difference]: Start difference. First operand has 328 places, 347 transitions, 771 flow. Second operand 18 states and 3288 transitions. [2024-11-19 09:57:32,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 401 transitions, 1391 flow [2024-11-19 09:57:32,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 401 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:57:32,098 INFO L231 Difference]: Finished difference. Result has 353 places, 371 transitions, 949 flow [2024-11-19 09:57:32,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=949, PETRI_PLACES=353, PETRI_TRANSITIONS=371} [2024-11-19 09:57:32,099 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -7 predicate places. [2024-11-19 09:57:32,099 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 371 transitions, 949 flow [2024-11-19 09:57:32,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 172.76470588235293) internal successors, (2937), 17 states have internal predecessors, (2937), 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) [2024-11-19 09:57:32,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:32,101 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:32,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 09:57:32,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:57:32,301 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:32,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:32,302 INFO L85 PathProgramCache]: Analyzing trace with hash 443305544, now seen corresponding path program 1 times [2024-11-19 09:57:32,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:32,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410425962] [2024-11-19 09:57:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 09:57:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:32,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410425962] [2024-11-19 09:57:32,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410425962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:32,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:32,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:57:32,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309368096] [2024-11-19 09:57:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:32,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:32,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:32,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-19 09:57:32,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 371 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2024-11-19 09:57:32,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:32,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-19 09:57:32,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:57:33,201 INFO L124 PetriNetUnfolderBase]: 1542/4364 cut-off events. [2024-11-19 09:57:33,202 INFO L125 PetriNetUnfolderBase]: For 812/814 co-relation queries the response was YES. [2024-11-19 09:57:33,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8037 conditions, 4364 events. 1542/4364 cut-off events. For 812/814 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33375 event pairs, 1240 based on Foata normal form. 4/3704 useless extension candidates. Maximal degree in co-relation 7976. Up to 2922 conditions per place. [2024-11-19 09:57:33,223 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 201 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-19 09:57:33,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 361 transitions, 1319 flow [2024-11-19 09:57:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:57:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:57:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2024-11-19 09:57:33,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44854368932038835 [2024-11-19 09:57:33,225 INFO L175 Difference]: Start difference. First operand has 353 places, 371 transitions, 949 flow. Second operand 3 states and 693 transitions. [2024-11-19 09:57:33,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 361 transitions, 1319 flow [2024-11-19 09:57:33,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 361 transitions, 1296 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-19 09:57:33,234 INFO L231 Difference]: Finished difference. Result has 346 places, 361 transitions, 894 flow [2024-11-19 09:57:33,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=346, PETRI_TRANSITIONS=361} [2024-11-19 09:57:33,235 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -14 predicate places. [2024-11-19 09:57:33,235 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 361 transitions, 894 flow [2024-11-19 09:57:33,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2024-11-19 09:57:33,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:33,236 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:33,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 09:57:33,236 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-19 09:57:33,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash -897610528, now seen corresponding path program 1 times [2024-11-19 09:57:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094536169] [2024-11-19 09:57:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:33,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:57:33,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 09:57:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:57:33,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 09:57:33,529 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 09:57:33,533 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (153 of 154 remaining) [2024-11-19 09:57:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (152 of 154 remaining) [2024-11-19 09:57:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (151 of 154 remaining) [2024-11-19 09:57:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (150 of 154 remaining) [2024-11-19 09:57:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (149 of 154 remaining) [2024-11-19 09:57:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (148 of 154 remaining) [2024-11-19 09:57:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (147 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (146 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (145 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (144 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (143 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (142 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (141 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (140 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (139 of 154 remaining) [2024-11-19 09:57:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (138 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (137 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (136 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK (135 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (134 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (133 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (132 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (131 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (130 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (129 of 154 remaining) [2024-11-19 09:57:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (128 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (127 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (126 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (125 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (124 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (123 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (122 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (121 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (120 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (119 of 154 remaining) [2024-11-19 09:57:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (118 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (110 of 154 remaining) [2024-11-19 09:57:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (107 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (104 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 154 remaining) [2024-11-19 09:57:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (95 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (90 of 154 remaining) [2024-11-19 09:57:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (87 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (86 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (81 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 154 remaining) [2024-11-19 09:57:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 154 remaining) [2024-11-19 09:57:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (62 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (59 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 154 remaining) [2024-11-19 09:57:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (54 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 154 remaining) [2024-11-19 09:57:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (45 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (42 of 154 remaining) [2024-11-19 09:57:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (39 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 154 remaining) [2024-11-19 09:57:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (30 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (25 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (22 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (21 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 154 remaining) [2024-11-19 09:57:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (16 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 154 remaining) [2024-11-19 09:57:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 154 remaining) [2024-11-19 09:57:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 154 remaining) [2024-11-19 09:57:33,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 09:57:33,551 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:33,554 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 09:57:33,554 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 09:57:33,726 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 09:57:33,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 892 transitions, 1800 flow [2024-11-19 09:57:33,871 INFO L124 PetriNetUnfolderBase]: 311/1013 cut-off events. [2024-11-19 09:57:33,871 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:57:33,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 1013 events. 311/1013 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5232 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 826. Up to 12 conditions per place. [2024-11-19 09:57:33,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 892 transitions, 1800 flow [2024-11-19 09:57:33,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 892 transitions, 1800 flow [2024-11-19 09:57:33,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:57:33,931 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=None, 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;@14e5908d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:57:33,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 219 error locations. [2024-11-19 09:57:33,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:57:33,932 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 09:57:33,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:57:33,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:33,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 09:57:33,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 216 more)] === [2024-11-19 09:57:33,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash 127811, now seen corresponding path program 1 times [2024-11-19 09:57:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:33,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897410045] [2024-11-19 09:57:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:33,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:57:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:57:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:57:34,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:57:34,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897410045] [2024-11-19 09:57:34,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897410045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:57:34,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:57:34,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:57:34,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436788311] [2024-11-19 09:57:34,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:57:34,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:57:34,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:57:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:57:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:57:34,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 892 [2024-11-19 09:57:34,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 892 transitions, 1800 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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) [2024-11-19 09:57:34,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:57:34,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 892 [2024-11-19 09:57:34,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand